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SEAT LEON 2013 – Data bus network . Wiring diagrams, Pin Connector, Location

Wiring Diagram SEAT LEON 2013 - Battery monitor control unit - Fuse holder A - Fuse holder B - Fuse holder C



Wiring Diagram  SEAT LEON 2013 - Battery monitor control unit - Fuse holder A - Fuse holder B - Fuse holder C https://portal-diagnostov.com/license.html
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A Battery
C Alternator
J367 Battery monitor control unit
SA Fuse holder A
SA1 Fuse 1 in fuse holder A
SB Fuse holder B
SB18 Fuse 18 on fuse holder B
SC Fuse holder C
SC5 Fuse 5 on fuse holder C
T2u 2-pin connector
T2v 2-pin connector
T4w 4-pin connector
T8s 8-pin connector
T17a 17-pin connector, brown, on left A-pillar
  D218 Connection 1 (LIN bus) in engine compartment wiring harness
*According to equipment
*2Only models with no start/stop system
*3Only models with stop/start system

Wiring Diagram SEAT LEON 2013 - Rain sensor - Interior monitoring sensor - Humidity sender - Vehicle inclination sender - Alarm horn - Sliding sunroof adjustment control unit - Onboard supply control unit



Wiring Diagram  SEAT LEON 2013 - Rain sensor - Interior monitoring sensor - Humidity sender - Vehicle inclination sender - Alarm horn - Sliding sunroof adjustment control unit - Onboard supply control unit https://portal-diagnostov.com/license.html
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G213 Rain sensor
G273 Interior monitoring sensor
G355 Humidity sender
G384 Vehicle inclination sender
H12 Alarm horn
J245 Sliding sunroof adjustment control unit
J519 Onboard supply control unit
T4r 4-pin connector
T6q 6-pin connector
T10i 10-pin connector
T46b 46-pin connector
T73a 73-pin connector
T73c 73-pin connector
  B549 Connection 2 (LIN bus) in main wiring harness
*According to equipment

Wiring Diagram SEAT LEON 2013 - ABS control unit - Parking aid control unit - Power steering control unit



Wiring Diagram  SEAT LEON 2013 - ABS control unit - Parking aid control unit - Power steering control unit https://portal-diagnostov.com/license.html
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J104 ABS control unit
J446 Parking aid control unit
J500 Power steering control unit
T3c 3-pin connector
T6n 6-pin connector
T10f 10-pin connector
T17a 17-pin connector, brown, on left A-pillar
T26b 26-pin connector
T38a 38-pin connector
T46a 46-pin connector
  B672 Connection 1 (running gear/dash panel insert CAN bus, high), in main wiring harness
  B676 Connection 1 (running gear/dash panel insert CAN bus, low), in main wiring harness
  D159 Connection (high bus), in engine compartment wiring harness
  D160 Connection (low bus), in engine compartment wiring harness
*According to equipment
*2Only models with petrol engine
*3Only models with diesel engine

Wiring Diagram SEAT LEON 2013 - Headlight range control unit - Lane departure warning control unit - Front camera for driver assist systems



Wiring Diagram  SEAT LEON 2013 - Headlight range control unit - Lane departure warning control unit - Front camera for driver assist systems https://portal-diagnostov.com/license.html
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J431 Headlight range control unit
J759 Lane departure warning control unit
R242 Front camera for driver assist systems
T8r 8-pin connector
T12i 12-pin connector
T17a 17-pin connector, brown, on left A-pillar
T17b 17-pin connector, white, on left A-pillar
T26a 26-pin connector
  B108 Connection 1 (CAN bus extended high), in main wiring harness
  B109 Connection 1 (CAN bus extended low), in main wiring harness
  B672 Connection 1 (running gear/dash panel insert CAN bus, high), in main wiring harness
  B676 Connection 1 (running gear/dash panel insert CAN bus, low), in main wiring harness
  E135 Connection (CAN bus extended high), in engine compartment wiring harness
  E136 Connection (CAN bus extended low), in engine compartment wiring harness
*According to equipment

Wiring Diagram SEAT LEON 2013 - Data bus diagnostic interface



Wiring Diagram  SEAT LEON 2013 - Data bus diagnostic interface https://portal-diagnostov.com/license.html
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J533 Data bus diagnostic interface
T17d 17-pin connector, blue, on left A-pillar
T20a 20-pin connector
  366 Earth connection 1, in main wiring harness
  369 Earth connection 4, in main wiring harness
  372 Earth connection 7, in main wiring harness
  375 Earth connection 10, in main wiring harness
  377 Earth connection 12, in main wiring harness
  B108 Connection 1 (CAN bus extended high), in main wiring harness
  B109 Connection 1 (CAN bus extended low), in main wiring harness
  B273 Positive connection (15), in main wiring harness
  B672 Connection 1 (running gear/dash panel insert CAN bus, high), in main wiring harness
  B676 Connection 1 (running gear/dash panel insert CAN bus, low), in main wiring harness
*According to equipment
*2Only models with no start/stop system

Wiring Diagram SEAT LEON 2013 - Data bus diagnostic interface - Display unit for front information display and operating unit control unit - Control unit 1 for information electronics - Radio - Diagnostic connection



Wiring Diagram  SEAT LEON 2013 - Data bus diagnostic interface - Display unit for front information display and operating unit control unit - Control unit 1 for information electronics - Radio - Diagnostic connection https://portal-diagnostov.com/license.html
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J533 Data bus diagnostic interface
J685 Display unit for front information display and operating unit control unit
J794 Control unit 1 for information electronics
R Radio
T12b 12-pin connector
T12d 12-pin connector
T12f 12-pin connector
T16a 16-pin connector
T20a 20-pin connector
U31 Diagnostic connection
  B415 Connection 1 (infotainment CAN bus, high), in main wiring harness
  B421 Connection 1 (infotainment CAN bus, low), in main wiring harness
  B698 Connection 3 (LIN bus) in main wiring harness
  B699 Connection 4 (LIN bus) in main wiring harness

Wiring Diagram SEAT LEON 2013 - Air quality sensor - Humidity sender in fresh air intake duct - Pressure sender for refrigerant circuit - Heater control unit - Fresh air blower control unit - Climatronic control unit - Air conditioning system control unit - Data bus diagnostic interface



Wiring Diagram  SEAT LEON 2013 - Air quality sensor - Humidity sender in fresh air intake duct - Pressure sender for refrigerant circuit - Heater control unit - Fresh air blower control unit - Climatronic control unit - Air conditioning system control unit - Data bus diagnostic interface https://portal-diagnostov.com/license.html
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G238 Air quality sensor
G657 Humidity sender in fresh air intake duct
G805 Pressure sender for refrigerant circuit
J65 Heater control unit
J126 Fresh air blower control unit
J255 Climatronic control unit
J301 Air conditioning system control unit
J533 Data bus diagnostic interface
T4e 4-pin connector
T17c 17-pin connector, red, on left A-pillar
T20a 20-pin connector
T20b 20-pin connector
  B383 Connection 1 (powertrain CAN bus, high), in main wiring harness
  B390 Connection 1 (powertrain CAN bus, low), in main wiring harness
  B397 Connection 1 (convenience CAN bus, high), in main wiring harness
  B406 Connection 1 (convenience CAN bus, low), in main wiring harness
  B528 Connection 1 (LIN bus) in main wiring harness
  D110 Connection 8 in engine compartment wiring harness
*According to equipment

Wiring Diagram SEAT LEON 2013 - Driver door control unit - Front passenger door control unit - Rear driver side window regulator motor - Rear passenger side window regulator motor



Wiring Diagram  SEAT LEON 2013 - Driver door control unit - Front passenger door control unit - Rear driver side window regulator motor - Rear passenger side window regulator motor https://portal-diagnostov.com/license.html
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J386 Driver door control unit
J387 Front passenger door control unit
T10k 10-pin connector
T10l 10-pin connector
T20c 20-pin connector
T20d 20-pin connector
T27a 27-pin connector, on left A-pillar
T27b 27-pin connector, on right A-pillar
T27c 27-pin connector, on left B-pillar
T27d 27-pin connector, on right B-pillar
V471 Rear driver side window regulator motor
V472 Rear passenger side window regulator motor
  B383 Connection 1 (powertrain CAN bus, high), in main wiring harness
  B390 Connection 1 (powertrain CAN bus, low), in main wiring harness
  B397 Connection 1 (convenience CAN bus, high), in main wiring harness
  B406 Connection 1 (convenience CAN bus, low), in main wiring harness
*According to equipment

Wiring Diagram SEAT LEON 2013 - Trailer detector control unit



Wiring Diagram  SEAT LEON 2013 - Trailer detector control unit https://portal-diagnostov.com/license.html
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J345 Trailer detector control unit
T3t 3-pin connector
T12j 12-pin connector, red
  B383 Connection 1 (powertrain CAN bus, high), in main wiring harness
  B390 Connection 1 (powertrain CAN bus, low), in main wiring harness
  B397 Connection 1 (convenience CAN bus, high), in main wiring harness
  B406 Connection 1 (convenience CAN bus, low), in main wiring harness
  X78 Connection 1, in optional equipment wiring harness
  X79 Connection 2, in optional equipment wiring harness
*According to equipment

Wiring Diagram SEAT LEON 2013 - Multifunction steering wheel control unit - Steering column electronics control unit - Dash panel insert



Wiring Diagram  SEAT LEON 2013 - Multifunction steering wheel control unit - Steering column electronics control unit - Dash panel insert https://portal-diagnostov.com/license.html
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F350 Coil connector
J285 Control unit in dash panel insert
J453 Multifunction steering wheel control unit, in steering wheel
J527 Steering column electronics control unit
KX2 Dash panel insert
T3p 3-pin connector
T12a 12-pin connector
T16e 16-pin connector
T18a 18-pin connector
  B383 Connection 1 (powertrain CAN bus, high), in main wiring harness
  B390 Connection 1 (powertrain CAN bus, low), in main wiring harness
  B397 Connection 1 (convenience CAN bus, high), in main wiring harness
  B406 Connection 1 (convenience CAN bus, low), in main wiring harness
*According to equipment

Wiring Diagram SEAT LEON 2013 - Selector lever - Airbag control unit - Selector lever sensors control unit - Engine control unit - Mechatronic unit for dual clutch gearbox - Control unit for structure-borne sound



Wiring Diagram  SEAT LEON 2013 - Selector lever - Airbag control unit - Selector lever sensors control unit - Engine control unit - Mechatronic unit for dual clutch gearbox - Control unit for structure-borne sound https://portal-diagnostov.com/license.html
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E313 Selector lever
J234 Airbag control unit
J587 Selector lever sensors control unit
J623 Engine control unit
J743 Mechatronic unit for dual clutch gearbox
J869 Control unit for structure-borne sound
T6ac 6-pin connector
T10g 10-pin connector
T17a 17-pin connector, brown, on left A-pillar
T20e 20-pin connector
T25a 25-pin connector
T90a 90-pin connector
T91a 91-pin connector
T94a 94-pin connector
  B383 Connection 1 (powertrain CAN bus, high), in main wiring harness
  B390 Connection 1 (powertrain CAN bus, low), in main wiring harness
  E123 Connection 1 (powertrain CAN bus, high), in engine wiring harness
  E124 Connection 1 (powertrain CAN bus, low), in engine wiring harness
*According to equipment


SEAT LEON 2013 Control units overview (3, 5-doors and ST vehicle)

Control units overview (3, 5-doors and ST vehicle)
SEAT LEON 2013 Control units overview (3, 5-doors and ST vehicle) https://portal-diagnostov.com/license.html
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2 -  Mechatronic unit for dual clutch gearbox -J743-
q   Location: on gearbox
q   Fitting location and pin connectors:
q   Fitting location and pin connectors for engine codes CJSA and CJXA (196-pin)
8 -  Radiator fan control unit -J293-
q   Location: on the cooler



SEAT LEON 2013 Battery monitor control unit​ J367

Battery monitor control unit​ -J367-
Location:
on the battery.
   
SEAT LEON 2013 Battery monitor control unit​ J367 https://portal-diagnostov.com/license.html
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A -  2-pin connector -T2u-
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SEAT LEON 2013 ABS control unit J104

ABS control unit -J104-
Location:
in engine compartment.
   
SEAT LEON 2013 ABS control unit J104 https://portal-diagnostov.com/license.html
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A -  ABS control unit -J104-
A1 -  38-pin connector -T38a-
  Note
According to equipment
Back to overview



SEAT LEON 2013 ABS control unit J104

ABS control unit -J104-
Location:
in engine compartment.
   
SEAT LEON 2013 ABS control unit J104 https://portal-diagnostov.com/license.html
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A -  ABS control unit -J104-
A1 -  46-pin connector -T46a-
  Note
According to equipment
Back to overview



SEAT LEON 2013

Engine control unit -J623- CHPA, CJZA, CJZB, CKFB, CKFC, CLHA, CLHB, CMBA, CRBC, CRKB, CRLB, CRMB, CRVA, CRVC, CUNA, CUPA and CXSA (154-pin)
Location:
in engine compartment, between battery and electronics box
   
SEAT LEON 2013 https://portal-diagnostov.com/license.html
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A -  Engine control unit -J623-
A1 -  94-pin connector -T94a-
A2 -  60-pin connector -T60a-
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SEAT LEON 2013

Engine control unit -J623- CJSA and CJXA (196-pin)
Location:
in engine compartment, between battery and electronics box
   
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A -  Engine control unit -J623-
A1 -  91-pin connector -T91a-
A2 -  105-pin connector -T105a-
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SEAT LEON 2013 Power steering control unit J500

Power steering control unit -J500-
Location:
near the steering box.
   
SEAT LEON 2013 Power steering control unit J500 https://portal-diagnostov.com/license.html
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A -  Power steering control unit -J500-
A1 -  3-pin connector -T3c-
A2 -  2-pin connector -T2b-
A3 -  5-pin connector -T5a-
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SEAT LEON 2013 Adaptive cruise control unit J428

Adaptive cruise control unit -J428-
Location:
near front bumper.
   
SEAT LEON 2013 Adaptive cruise control unit J428 https://portal-diagnostov.com/license.html
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A -  Adaptive cruise control unit -J428-
A1 -  8-pin connector -T8r-
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Overview of fuses (3, 5-doors and ST vehicle)
  Note
The fittings locations are identical on LHD and RHD models.
SEAT LEON 2013 Overview of fuses (3, 5-doors and ST vehicle) https://portal-diagnostov.com/license.html
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q   Location, only right-hand drive models
q   Position of fuses, from September 2012:
q   Position of fuses, from June 2013:
q   Position of fuses, from November 2013:
q   Position of fuses, from September 2012:
q   Position of fuses, from June 2013:
q   Position of fuses, from September 2012:

Fuse holder A -SA-
Location:
On electronics box, on left in engine compartment
   
SEAT LEON 2013 Overview of fuses (3, 5-doors and ST vehicle) https://portal-diagnostov.com/license.html
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SA -  Fuse holder A
SA1 -  Fuse 1 in fuse holder A ,
SA2 -  Fuse 2 in fuse holder A ,
SA3 -  Fuse 3 in fuse holder A ,
SA4 -  Fuse 4 in fuse holder A ,
SA5 -  Fuse 5 in fuse holder A ,
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SEAT LEON 2013

Fuses on fuse holder A -SA- , from September 2012
No.   Current Flow Diagram designation Nominal value   Function/component Terminal
J1A - Fuse 1 in fuse holder A -SA1- 125 A - Voltage supply of fuses:
-SC4- a -SC14- , -SC31- , -SC38- , -SC39- , -SC41- , -SC42- , -SC53-
Terminal 15 voltage supply relay -J329-
Relay for power sockets -J807-
Heated rear window relay -J9-
30
G1A - Fuse 2 in fuse holder A -SA2- 400 A - Alternator -C-
30
E1A - Fuse 3 in fuse holder A -SA3- 80 A - Power steering control unit -J500- 30
K2A - Fuse 4 in fuse holder A -SA4- 80 A - Voltage supply of fuses:
-SC3- , -SC15- a -SC21- , -SC23- a -SC28- ,-SC43- a -SC45-
Trailer voltage supply relay -J941-
30
L1A - Fuse 5 in fuse holder A -SA5- 50 A   Radiator fan control unit -J293- 30

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SEAT LEON 2013 Fuse holder B SB

Fuse holder B -SB-
Location:
On electronics box, on left in engine compartment
   
SEAT LEON 2013 Fuse holder B SB https://portal-diagnostov.com/license.html
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A -  Fuse holder B -SB- ;
Fuse colours:
t  50 A - red
t  40 A - orange or green
t  30 A - light green
t  25 A - colourless (white)
t  20 A - yellow or blue
t  15 A - light blue
t  10 A - red
t  7.5 A - brown
t  5 A - light brown
t  3 A - purple
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SEAT LEON 2013

Fuses on fuse holder B -SB- , from September 2012
No.   Current Flow Diagram designation Nominal value   Function/component Terminal
F1 - vacant - -   -
F2 - Fuse 2 on fuse holder B -SB2- 40 A - ABS control unit -J104- 30
F3 - Fuse 3 on fuse holder B -SB3- 15 A - Engine control unit -J623-
Only models with petrol engine
87
F3 - Fuse 3 on fuse holder B -SB3- 30 A - Engine control unit -J623-
Only models with diesel engine
87
F4 - Fuse 4 on fuse holder B -SB4- 10 A - Oil level and oil temperature sender -G266-
Radiator fan control unit -J293-
Activated charcoal filter solenoid valve 1 -N80-
Inlet camshaft control valve 1 -N205-
Exhaust camshaft control valve 1 -N318-
Oil pressure warning lamp -N428-
Only models with engine code CHPA and CMBA
87
F4 - Fuse 4 on fuse holder B -SB4- 5 A - Oil level and oil temperature sender -G266-
Radiator fan control unit -J293-
Low heat output relay -J359-
High heat output relay -J360-
Charge pressure control solenoid valve -N75-
Only models with diesel engine
87
F4 - Fuse 4 on fuse holder B -SB4- 10 A - Oil level and oil temperature sender -G266-
Radiator fan control unit -J293-
Turbocharger air recirculation valve -N249-
Intake manifold flap valve -N316-
Valve for oil pressure control -N428-
Piston cooling jet control valve -N522-
Only models with engine code CJSA
87
F4 - Fuse 4 on fuse holder B -SB4- 10 A - Oil level and oil temperature sender -G266-
Radiator fan control unit -J293-
Activated charcoal filter solenoid valve 1 -N80-
Camshaft control valve 1 -N205-
Only models with engine code CJZA and CJZB
87
F5 - Fuse 5 on fuse holder B -SB5- 10 A - Fuel pressure regulating valve -N276-
Fuel metering valve -N290-
Only models with diesel engine
87
F5 - Fuse 5 on fuse holder B -SB5- 10 A - Actuator 1 for camshaft adjustment -F366-
Actuator 2 for camshaft adjustment -F367-
Actuator 3 for camshaft adjustment -F368-
Actuator 4 for camshaft adjustment -F369-
Actuator 5 for camshaft adjustment -F370-
Actuator 6 for camshaft adjustment -F371-
Actuator 7 for camshaft adjustment -F372-
Actuator 8 for camshaft adjustment -F373-
Engine component current supply relay -J757-
Injector 2, cylinder 1 -N532-
Injector 2, cylinder 2 -N533-
Injector 2, cylinder 3 -N534-
Injector 2, cylinder 4 -N535-
Only models with engine code CJSA
87
F6 - Fuse 6 on fuse holder B -SB6- 5 A - Brake pedal position sender -G100- 87
F7 - Fuse 7 on fuse holder B -SB7- 5 A - Coolant shut-off valve -N82-
Only models with engine code CJSA
87
F7 - Fuse 7 on fuse holder B -SB7- 10 A - Fuel pressure regulating valve -N276-
Continued coolant circulation pump -V51-
Only models with engine code CHPA, CJZA, CJZB and CMBA
87
F7 - Fuse 7 on fuse holder B -SB7- 10 A - Oil pressure warning lamp -N428-
Coolant valve for cylinder head -N489-
Charge air cooling pump -V188-
Heating assistant pump -V488-
Only models with diesel engine
87
F8 - Fuse 8 on fuse holder B -SB8- 15 A - Lambda probe heater -Z19-
Lambda probe 1 heater after catalytic converter -Z29-
Only models with petrol engine
87
F8 - Fuse 8 on fuse holder B -SB8- 15 A - Lambda probe heater -Z19-
Only models with diesel engine
87
F9 - Fuse 9 on fuse holder B -SB9- 20 A - Ignition coil 1 with output stage -N70-
Ignition coil 2 with output stage -N127-
Ignition coil 3 with output stage -N291-
Ignition coil 4 with output stage -N292-
Only models with engine code CHPA, CJZA, CJZB and CMBA
87
F9 - Fuse 9 on fuse holder B -SB9- 10 A - Activated charcoal filter solenoid valve 1 -N80-
Camshaft control valve 1 -N205-
Exhaust camshaft control valve 1 -N318-
Continued coolant circulation pump -V51-
Only models with engine code CJSA
87
F9 - Fuse 9 on fuse holder B -SB9- 5 A - Air mass meter -G70-
Automatic glow period control unit -J179-
Intake manifold preheating heater element -N51-
Only models with diesel engine
87
F10 - Fuse 10 on fuse holder B -SB10- 15 A - Fuel pump control unit -J538-
Only models with petrol engine
87
F10 - Fuse 10 on fuse holder B -SB10- 20 A - Fuel pump control unit -J538-
Only models with diesel engine
87
F11 - Fuse 11 on fuse holder B -SB11- 40 A - Auxiliary heater element -Z35- 87
F12 - Fuse 12 on fuse holder B -SB12- 40 A - Auxiliary heater element -Z35- 87
F13 - Fuse 13 on fuse holder B -SB13- 30 A - Mechatronic unit for dual clutch gearbox -J743-
Only models with dual clutch gearbox 0CW
30
F13 - Fuse 13 on fuse holder B -SB13- 15 A - Mechatronic unit for dual clutch gearbox -J743-
Only models with dual clutch gearbox 0D9
30
F14 - vacant - -   -
F15 - Fuse 15 on fuse holder B -SB15- 15 A - Treble tone horn -H2-
Bass tone horn -H7-
Horn relay -J413-
30
F16 - Fuse 16 on fuse holder B -SB16- 20 A - Ignition coil 1 with output stage -N70-
Ignition coil 2 with output stage -N127-
Ignition coil 3 with output stage -N291-
Ignition coil 4 with output stage -N292-
Only models with engine code CJSA
87
F17 - Fuse 17 on fuse holder B -SB17- 7.5 A - Main relay -J271-
Terminal 30 voltage supply relay -J317-
Engine control unit -J623-
ABS control unit -J104-
30
F18 - Fuse 18 on fuse holder B -SB18- 5 A - Battery monitor control unit​ -J367-
Only models with stop/start system
30
F18 - Fuse 18 on fuse holder B -SB18- 5 A - Data bus diagnostic interface -J533-
Only models with no start/stop system
30
F19 - Fuse 19 on fuse holder B -SB19- 30 A - Wiper motor control unit -J400- 30
F20 - Fuse 20 on fuse holder B -SB20- 10 A - Alarm horn -H12- 30
F21 - Fuse 21 on fuse holder B -SB21- 20 A - ABS control unit -J104- 30
F22 - Fuse 22 on fuse holder B -SB22- 5 A - Engine control unit -J623- 50
F23 - Fuse 23 on fuse holder B -SB23- 30 A - Starter -B- 50
F24 - Fuse 24 on fuse holder B -SB24- 40 A - Auxiliary heater element -Z35- 87
F31 - vacant - -   -
F32 - vacant - -   -
F33 - vacant - -   -
F34 - vacant - -   -
F35 - vacant - -   -
F36 - vacant - -   -
F37 - vacant - -   -
F38 - vacant - -   -

Back to overview
   


SEAT LEON 2013

Fuses on fuse holder B -SB- , from June 2013
No.   Current Flow Diagram designation Nominal value   Function/component Terminal
F1 - Fuse 1 on fuse holder B -SB1- 20 A - ABS control unit -J104- According to equipment 30
F1 - Fuse 1 on fuse holder B -SB1- 40 A - ABS control unit -J104- According to equipment 30
F2 - Fuse 2 on fuse holder B -SB2- 40 A - ABS control unit -J104- 30
F3 - Fuse 3 on fuse holder B -SB3- 15 A - Engine control unit -J623-
Only models with petrol engine
87
F3 - Fuse 3 on fuse holder B -SB3- 30 A - Engine control unit -J623-
Only models with diesel engine
87
F4 - Fuse 4 on fuse holder B -SB4- 10 A - Oil level and oil temperature sender -G266-
Radiator fan control unit -J293-
Activated charcoal filter solenoid valve 1 -N80-
Inlet camshaft control valve 1 -N205-
Exhaust camshaft control valve 1 -N318-
Oil pressure warning lamp -N428-
Only models with engine code CHPA, CMBA und CXSA
87
F4 - Fuse 4 on fuse holder B -SB4- 5 A - Oil level and oil temperature sender -G266-
Radiator fan control unit -J293-
Low heat output relay -J359-
High heat output relay -J360-
Charge pressure control solenoid valve -N75-
Only models with diesel engine
87
F4 - Fuse 4 on fuse holder B -SB4- 10 A - Oil level and oil temperature sender -G266-
Radiator fan control unit -J293-
Turbocharger air recirculation valve -N249-
Intake manifold flap valve -N316-
Valve for oil pressure control -N428-
Piston cooling jet control valve -N522-
Only models with engine code CJSA
87
F4 - Fuse 4 on fuse holder B -SB4- 10 A - Oil level and oil temperature sender -G266-
Radiator fan control unit -J293-
Activated charcoal filter solenoid valve 1 -N80-
Camshaft control valve 1 -N205-
Only models with engine code CJZA and CJZB
87
F5 - Fuse 5 on fuse holder B -SB5- 10 A - Fuel pressure regulating valve -N276-
Fuel metering valve -N290-
Only models with diesel engine
87
F5 - Fuse 5 on fuse holder B -SB5- 10 A   Camshaft control valve 1 -N205-
Fuel pressure regulating valve -N276-
Fuel metering valve -N290-
Only models with diesel engine EU6+
87
F5 - Fuse 5 on fuse holder B -SB5- 10 A - Actuator 1 for camshaft adjustment -F366-
Actuator 2 for camshaft adjustment -F367-
Actuator 3 for camshaft adjustment -F368-
Actuator 4 for camshaft adjustment -F369-
Actuator 5 for camshaft adjustment -F370-
Actuator 6 for camshaft adjustment -F371-
Actuator 7 for camshaft adjustment -F372-
Actuator 8 for camshaft adjustment -F373-
Engine component current supply relay -J757-
Injector 2, cylinder 1 -N532-
Injector 2, cylinder 2 -N533-
Injector 2, cylinder 3 -N534-
Injector 2, cylinder 4 -N535-
Only models with engine code CJSA
87
F6 - Fuse 6 on fuse holder B -SB6- 5 A - Brake pedal position sender -G100- 87
F7 - Fuse 7 on fuse holder B -SB7- 5 A - Coolant shut-off valve -N82-
Only models with engine code CJSA
87
F7 - Fuse 7 on fuse holder B -SB7- 10 A - Fuel pressure regulating valve -N276-
Continued coolant circulation pump -V51-
Only models with engine code CHPA, CJZA, CJZB, CMBA and CXSA
87
F7 - Fuse 7 on fuse holder B -SB7- 10 A - Oil pressure warning lamp -N428-
Coolant valve for cylinder head -N489-
Charge air cooling pump -V188-
Heating assistant pump -V488-
Only models with diesel engine
87
F8 - Fuse 8 on fuse holder B -SB8- 15 A - Lambda probe heater -Z19-
Lambda probe 1 heater after catalytic converter -Z29-
Only models with petrol engine and diesel engine EU6+
87
F8 - Fuse 8 on fuse holder B -SB8- 15 A - Lambda probe heater -Z19-
Only models with diesel engine EU5+
87
F9 - Fuse 9 on fuse holder B -SB9- 20 A - Ignition coil 1 with output stage -N70-
Ignition coil 2 with output stage -N127-
Ignition coil 3 with output stage -N291-
Ignition coil 4 with output stage -N292-
Only models with engine code CHPA, CJZA, CJZB, CMBA and CXSA
87
F9 - Fuse 9 on fuse holder B -SB9- 10 A - Activated charcoal filter solenoid valve 1 -N80-
Camshaft control valve 1 -N205-
Exhaust camshaft control valve 1 -N318-
Continued coolant circulation pump -V51-
Only models with engine code CJSA
87
F9 - Fuse 9 on fuse holder B -SB9- 5 A - Air mass meter -G70-
Automatic glow period control unit -J179-
Intake manifold preheating heater element -N51-
Only models with diesel engine
87
F10 - Fuse 10 on fuse holder B -SB10- 15 A - Fuel pump control unit -J538-
Only models with petrol engine
87
F10 - Fuse 10 on fuse holder B -SB10- 20 A - Fuel pump control unit -J538-
Only models with diesel engine
87
F11 - Fuse 11 on fuse holder B -SB11- 40 A - Auxiliary heater element -Z35- 87
F12 - Fuse 12 on fuse holder B -SB12- 40 A - Auxiliary heater element -Z35- 87
F13 - Fuse 13 on fuse holder B -SB13- 30 A - Mechatronic unit for dual clutch gearbox -J743-
Only models with dual clutch gearbox 0CW
30
F13 - Fuse 13 on fuse holder B -SB13- 15 A - Mechatronic unit for dual clutch gearbox -J743-
Only models with dual clutch gearbox 0D9
30
F14 - vacant - -   -
F15 - Fuse 15 on fuse holder B -SB15- 15 A - Treble tone horn -H2-
Bass tone horn -H7-
Horn relay -J413-
30
F16 - Fuse 16 on fuse holder B -SB16- 20 A - Ignition coil 1 with output stage -N70-
Ignition coil 2 with output stage -N127-
Ignition coil 3 with output stage -N291-
Ignition coil 4 with output stage -N292-
Only models with engine code CJSA
87
F17 - Fuse 17 on fuse holder B -SB17- 7.5 A - Main relay -J271-
Terminal 30 voltage supply relay -J317-
Engine control unit -J623-
ABS control unit -J104-
30
F18 - Fuse 18 on fuse holder B -SB18- 5 A - Battery monitor control unit​ -J367-
Only models with stop/start system
30
F18 - Fuse 18 on fuse holder B -SB18- 5 A - Data bus diagnostic interface -J533-
Only models with no start/stop system
30
F19 - Fuse 19 on fuse holder B -SB19- 30 A - Wiper motor control unit -J400- 30
F20 - Fuse 20 on fuse holder B -SB20- 10 A - Alarm horn -H12- 30
F21 - vacant - -    
F22 - Fuse 22 on fuse holder B -SB22- 5 A - Engine control unit -J623- 50
F23 - Fuse 23 on fuse holder B -SB23- 30 A - Starter -B- 50
F24 - Fuse 24 on fuse holder B -SB24- 40 A - Auxiliary heater element -Z35- 87
F31 - vacant - -   -
F32 - vacant - -   -
F33 - vacant - -   -
F34 - vacant - -   -
F35 - vacant - -   -
F36 - vacant - -   -
F37 - vacant - -   -
F38 - vacant - -   -

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SEAT LEON 2013 Fuse holder C SC

Fuse holder C -SC-
Location, only left-hand drive models:
on left under dash panel
   
SEAT LEON 2013 Fuse holder C SC https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
A -  Fuse holder C -SC- ;
Fuse colours:
t  50 A - red
t  40 A - orange
t  30 A - light green
t  25 A - colourless (white)
t  20 A - yellow
t  15 A - light blue
t  10 A - red
t  7.5 A - brown
t  5 A - light brown
t  3 A - purple
t  1 A - black
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SEAT LEON 2013 Fuse holder C SC

Fuse holder C -SC-
Location, only right-hand drive models:
on left under dash panel
   
SEAT LEON 2013 Fuse holder C SC https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
A -  Fuse holder C -SC- ;
Fuse colours:
t  50 A - red
t  40 A - orange
t  30 A - light green
t  25 A - colourless (white)
t  20 A - yellow
t  15 A - light blue
t  10 A - red
t  7.5 A - brown
t  5 A - light brown
t  3 A - purple
t  1 A - black
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SEAT LEON 2013

Fuses on fuse holder C -SC- , from September 2012
No.   Current Flow Diagram designation Nominal value   Function/component Terminal
F1 - vacant - -   -
F2 - vacant - -   -
F3 - vacant - - -
F4 - Fuse 4 on fuse holder C -SC4- 10 A - Onboard supply control unit -J519-
t  Anti-theft alarm system
30
F5 - Fuse 5 on fuse holder C -SC5- 5 A - Data bus diagnostic interface -J533- 30
F6 - Fuse 6 on fuse holder C -SC6- 5 A - Interior monitoring sensor -G273-
Vehicle inclination sender -G384-
30
F7 - Fuse 7 on fuse holder C -SC7- 10 A - Heated rear window relay -J9-
Heater control unit -J65-
Climatronic control unit -J255-
Air conditioning system control unit​ -J301-
30
F8 - Fuse 8 on fuse holder C -SC8- 10 A - Light switch -E1-
Rain sensor -G213-
Air humidity sensor -G355-
Diagnosis connection -U31-
30
F9 - vacant - -   -
F10 - Fuse 10 on fuse holder C -SC10- 10 A - Display unit of control unit for front display and information control panel -J685- 30
F11 - vacant - -   -
F12 - Fuse 12 on fuse holder C -SC12- 20 A - Control unit 1 for information electronics -J794-
Radio -R-
30
F13 - vacant - -   -
F14 - Fuse 14 on fuse holder C -SC14- 40 A - Fresh air blower control unit -J126- 30
F15 - vacant - -   -
F16 - vacant - -   -
F17 - Fuse 17 on fuse holder C -SC17- 5 A - Control unit in dash panel insert -J285- 30
F18 - vacant - -   -
F19 - vacant - - -
F20 - vacant - -   -
F21 - vacant - -   -
F22 - vacant - - -
F23 - Fuse 23 on fuse holder C -SC23- 40 A - Onboard supply control unit -J519-
t  Right​ headlight -MX2-
30
F24 - Fuse 24 on fuse holder C -SC24- 30 A - Sliding sunroof adjustment control unit -J245- 30
F25 - Fuse 25 on fuse holder C -SC25- 30 A - Driver door control unit -J386-
Rear driver side window regulator motor -V471-
30
F26 - Fuse 26 on fuse holder C -SC26- 20 A - Onboard supply control unit -J519-
t  Front heated seats
30
F27 - vacant - -   -
F28 - vacant - -   -
F29 - vacant - -   -
F30 - vacant - -   -
F31 - Fuse 31 on fuse holder C -SC31- 40 A - Onboard supply control unit -J519-
t  Left headlight -MX1-
30
F32 - Fuse 32 on fuse holder C -SC32- 7.5 A - Park assist steering control unit -J446- 15
F33 - Fuse 33 on fuse holder C -SC33- 5 A - Airbag control unit -J234-
Front passenger side airbag deactivated warning lamp -K145-
15
F34 - Fuse 34 on fuse holder C -SC34- 7.5 A - Light switch -E1-
Fog light switch -E7-
Rear fog light switch -E18-
Interior mirror -EX5-
Tyre pressure monitor button -E226-
Reversing light switch -F4-
Air quality sensor -G238-
Humidity sender in fresh air intake duct -G657-
Pressure sender for refrigerant circuit -G805-
Relay for power sockets -J807-
Control unit for structure-borne sound -J869-
Automatic anti-dazzle interior mirror -Y7-
15
F35 - Fuse 35 on fuse holder C -SC35- 10 A - Headlight range control regulator -E102-
Headlight range control unit -J431-
Diagnosis connection -U31-
Left headlight range control motor -V48-
Right headlight range control motor -V49-
15
F36 - Fuse 36 on fuse holder C -SC36- 10 A - Lane departure warning control unit -J759-
Front camera for driver assist systems -R242-
15
F37 - vacant - -   -
F38 - vacant - -   -
F39 - Fuse 39 on fuse holder C -SC39- 30 A - Front passenger door control unit -J387-
Rear passenger side window regulator motor -V472-
30
F40 - Fuse 40 on fuse holder C -SC40- 20 A - 12 V socket -U5-
87
F41 - Fuse 41 on fuse holder C -SC41- 1 A - Steering column electronics control unit -J527- 30
F42 - Fuse 42 on fuse holder C -SC42- 40 A - Onboard supply control unit -J519-
t  Central locking
30
F43 - Fuse 43 on fuse holder C -SC43- 30 A - Onboard supply control unit -J519- 30
F44 - vacant - -   -
F45 - vacant - -   -
F46 - vacant - -   -
F47 - Fuse 47 on fuse holder C -SC47- 15 A - Rear window wiper motor -V12- 15
F48 - vacant - - -
F49 - Fuse 49 on fuse holder C -SC49- 5 A - Clutch position sender -G476-
Starter motor relay 1 -J906-
Starter motor relay 2 -J907-
15
F50 - vacant - -   -
F51 - vacant - -   -
F52 - vacant - - -
F53 - Fuse 53 on fuse holder C -SC53- 30 A - Window aerial suppression filter -C18-
Suppression filter -C24-
Heated rear window relay -J9-
Heated rear window -Z1-
87

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SEAT LEON 2013

Fuses on fuse holder C -SC- , from June 2013
No.   Current Flow Diagram designation Nominal value   Function/component Terminal
F1 - vacant - -   -
F2 - vacant - -   -
F3 - vacant - - -
F4 - vacant - - -
F5 - Fuse 5 on fuse holder C -SC5- 5 A - Data bus diagnostic interface -J533- 30
F6 - Fuse 6 on fuse holder C -SC6- 5 A - Interior monitoring sensor -G273-
Vehicle inclination sender -G384-
30
F7 - Fuse 7 on fuse holder C -SC7- 10 A - Heated rear window relay -J9-
Heater control unit -J65-
Climatronic control unit -J255-
Air conditioning system control unit​ -J301-
30
F8 - Fuse 8 on fuse holder C -SC8- 10 A - Light switch -E1-
Rain sensor -G213-
Air humidity sensor -G355-
Diagnosis connection -U31-
30
F9 - vacant - -   -
F10 - Fuse 10 on fuse holder C -SC10- 10 A - Display unit of control unit for front display and information control panel -J685- 30
F11 - vacant - -   -
F12 - Fuse 12 on fuse holder C -SC12- 20 A - Control unit 1 for information electronics -J794-
Radio -R-
30
F13 - vacant - -   -
F14 - Fuse 14 on fuse holder C -SC14- 40 A - Fresh air blower control unit -J126- 30
F15 - vacant - -   -
F16 - vacant - -   -
F17 - Fuse 17 on fuse holder C -SC17- 5 A - Control unit in dash panel insert -J285- 30
F18 - vacant - -   -
F19 - vacant - - -
F20 - vacant - -   -
F21 - vacant - -   -
F22 - vacant - - -
F23 - Fuse 23 on fuse holder C -SC23- 40 A - Onboard supply control unit -J519-
t  Right​ headlight -MX2-
30
F24 - Fuse 24 on fuse holder C -SC24- 30 A - Sliding sunroof adjustment control unit -J245- (only 3 and 5-doors vehicle) 30
F24 - Fuse 24 on fuse holder C -SC24- 30 A - Sliding sunroof adjustment control unit -J245-
Sunroof roller blind control unit -J394-
(only ST vehicle)
30
F25 - Fuse 25 on fuse holder C -SC25- 30 A - Driver door control unit -J386-
Rear driver side window regulator motor -V471-
30
F26 - Fuse 26 on fuse holder C -SC26- 20 A - Onboard supply control unit -J519-
t  Front heated seats
30
F27 - vacant - -   -
F28 - Fuse 28 on fuse holder C -SC28- 20 A - Trailer detector control unit -J345- 30
F29 - vacant - -   -
F30 - vacant - -   -
F31 - Fuse 31 on fuse holder C -SC31- 40 A - Onboard supply control unit -J519-
t  Left headlight -MX1-
30
F32 - Fuse 32 on fuse holder C -SC32- 7.5 A - Park assist steering control unit -J446- 15
F33 - Fuse 33 on fuse holder C -SC33- 5 A - Airbag control unit -J234-
Front passenger side airbag deactivated warning lamp -K145-
15
F34 - Fuse 34 on fuse holder C -SC34- 7.5 A - Light switch -E1-
Fog light switch -E7-
Rear fog light switch -E18-
Interior mirror -EX5-
Tyre pressure monitor button -E226-
Reversing light switch -F4-
Air quality sensor -G238-
Humidity sender in fresh air intake duct -G657-
Pressure sender for refrigerant circuit -G805-
Relay for power sockets -J807-
Control unit for structure-borne sound -J869-
Automatic anti-dazzle interior mirror -Y7-
15
F35 - Fuse 35 on fuse holder C -SC35- 10 A - Headlight range control regulator -E102-
Headlight range control unit -J431-
Diagnosis connection -U31-
Left headlight range control motor -V48-
Right headlight range control motor -V49-
15
F36 - Fuse 36 on fuse holder C -SC36- 10 A - Lane departure warning control unit -J759-
Front camera for driver assist systems -R242-
15
F37 - vacant - -   -
F38 - Fuse 38 on fuse holder C -SC38- 20 A - Trailer detector control unit -J345- 30
F39 - Fuse 39 on fuse holder C -SC39- 30 A - Front passenger door control unit -J387-
Rear passenger side window regulator motor -V472-
30
F40 - Fuse 40 on fuse holder C -SC40- 20 A - 12 V socket -U5-
(only 3 and 5-doors vehicle)
87
F40 - Fuse 40 on fuse holder C -SC40- 20 A - 12 V socket -U5-
12 V socket 2 -U18-
(only ST vehicle)
87
F41 - Fuse 41 on fuse holder C -SC41- 1 A - Steering column electronics control unit -J527- 30
F42 - Fuse 42 on fuse holder C -SC42- 40 A - Onboard supply control unit -J519-
t  Central locking
30
F43 - Fuse 43 on fuse holder C -SC43- 30 A - Onboard supply control unit -J519- 30
F44 - Fuse 44 on fuse holder C -SC44- 15 A - Trailer detector control unit -J345- 30
F45 - vacant - -   -
F46 - vacant - -   -
F47 - Fuse 47 on fuse holder C -SC47- 15 A - Rear window wiper motor -V12- 15
F48 - Fuse 48 on fuse holder C -SC48- 15 A - Trailer socket -U10- (only 3 and 5-doors vehicle) 15
F48 - Fuse 48 on fuse holder C -SC48- 30 A - Trailer socket -U10- (only ST vehicle) 15
F49 - Fuse 49 on fuse holder C -SC49- 5 A - Clutch position sender -G476-
Starter motor relay 1 -J906-
Starter motor relay 2 -J907-
15
F50 - vacant - -   -
F51 - vacant - -   -
F52 - vacant - - -
F53 - Fuse 53 on fuse holder C -SC53- 30 A - Window aerial suppression filter -C18-
Suppression filter -C24-
Heated rear window relay -J9-
Heated rear window -Z1-
87

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SEAT LEON 2013

Fuses on fuse holder C -SC- , from November 2013
No.   Current Flow Diagram designation Nominal value   Function/component Terminal
F1 - vacant - -   -
F2 - vacant - -   -
F3 - vacant - - -
F4 - vacant - - -
F5 - Fuse 5 on fuse holder C -SC5- 5 A - Data bus diagnostic interface -J533- 30
F6 - Fuse 6 on fuse holder C -SC6- 5 A - Interior monitoring sensor -G273-
Vehicle inclination sender -G384-
30
F7 - Fuse 7 on fuse holder C -SC7- 10 A - Heated rear window relay -J9-
Heater control unit -J65-
Climatronic control unit -J255-
Air conditioning system control unit​ -J301-
30
F8 - Fuse 8 on fuse holder C -SC8- 10 A - Light switch -E1-
Rain sensor -G213-
Air humidity sensor -G355-
Diagnosis connection -U31-
30
F9 - vacant - -   -
F10 - Fuse 10 on fuse holder C -SC10- 10 A - Display unit of control unit for front display and information control panel -J685- 30
F11 - vacant - -   -
F12 - Fuse 12 on fuse holder C -SC12- 20 A - Control unit 1 for information electronics -J794-
Radio -R-
30
F13 - Fuse 13 on fuse holder C -SC13- 15 A - Electronically controlled damping control unit -J250- 30
F14 - Fuse 14 on fuse holder C -SC14- 30 A - Fresh air blower control unit -J126- 30
F15 - vacant - -   -
F16 - vacant - -   -
F17 - Fuse 17 on fuse holder C -SC17- 5 A - Control unit in dash panel insert -J285- 30
F18 - vacant - -   -
F19 - vacant - - -
F20 - vacant - -   -
F21 - Fuse 21 on fuse holder C -SC21- 15 A - All-wheel drive control unit -J492- 30
F22 - vacant - - -
F23 - Fuse 23 on fuse holder C -SC23- 40 A - Onboard supply control unit -J519-
t  Right​ headlight -MX2-
30
F24 - Fuse 24 on fuse holder C -SC24- 30 A - Sliding sunroof adjustment control unit -J245- (only 3 and 5-doors vehicle) 30
F24 - Fuse 24 on fuse holder C -SC24- 30 A - Sliding sunroof adjustment control unit -J245-
Sunroof roller blind control unit -J394-
(only ST vehicle)
30
F25 - Fuse 25 on fuse holder C -SC25- 30 A - Driver door control unit -J386-
Rear driver side window regulator motor -V471-
30
F26 - Fuse 26 on fuse holder C -SC26- 20 A - Onboard supply control unit -J519-
t  Front heated seats
30
F27 - Fuse 27 on fuse holder C -SC27- 20 A - Trailer voltage supply relay -J941-
Trailer socket -U10-
30
F28 - Fuse 28 on fuse holder C -SC28- 20 A - Trailer detector control unit -J345- 30
F29 - vacant - -   -
F30 - vacant - -   -
F31 - Fuse 31 on fuse holder C -SC31- 40 A - Onboard supply control unit -J519-
t  Left headlight -MX1-
30
F32 - Fuse 32 on fuse holder C -SC32- 7.5 A - Park assist steering control unit -J446- 15
F33 - Fuse 33 on fuse holder C -SC33- 5 A - Airbag control unit -J234-
Front passenger side airbag deactivated warning lamp -K145-
15
F34 - Fuse 34 on fuse holder C -SC34- 7.5 A - Light switch -E1-
Fog light switch -E7-
Rear fog light switch -E18-
Interior mirror -EX5-
Tyre pressure monitor button -E226-
Reversing light switch -F4-
Air quality sensor -G238-
Humidity sender in fresh air intake duct -G657-
Pressure sender for refrigerant circuit -G805-
Relay for power sockets -J807-
Control unit for structure-borne sound -J869-
Automatic anti-dazzle interior mirror -Y7-
15
F35 - Fuse 35 on fuse holder C -SC35- 10 A - Headlight range control regulator -E102-
Headlight range control unit -J431-
Diagnosis connection -U31-
Left headlight range control motor -V48-
Right headlight range control motor -V49-
15
F36 - Fuse 36 on fuse holder C -SC36- 10 A - Lane departure warning control unit -J759-
Front camera for driver assist systems -R242-
15
F37 - vacant - -   -
F38 - Fuse 38 on fuse holder C -SC38- 20 A - Trailer detector control unit -J345- 30
F39 - Fuse 39 on fuse holder C -SC39- 30 A - Front passenger door control unit -J387-
Rear passenger side window regulator motor -V472-
30
F40 - Fuse 40 on fuse holder C -SC40- 20 A - 12 V socket -U5-
(only 3 and 5-doors vehicle)
87
F40 - Fuse 40 on fuse holder C -SC40- 20 A - 12 V socket -U5-
12 V socket 2 -U18-
(only ST vehicle)
87
F41 - Fuse 41 on fuse holder C -SC41- 1 A - Steering column electronics control unit -J527- 30
F42 - Fuse 42 on fuse holder C -SC42- 40 A - Onboard supply control unit -J519-
t  Central locking
30
F43 - Fuse 43 on fuse holder C -SC43- 30 A - Onboard supply control unit -J519- 30
F44 - Fuse 44 on fuse holder C -SC44- 15 A - Trailer detector control unit -J345- 30
F45 - vacant - -   -
F46 - vacant - -   -
F47 - Fuse 47 on fuse holder C -SC47- 15 A - Rear window wiper motor -V12- 15
F48 - vacant - -   -
F48 - vacant - -   -
F49 - Fuse 49 on fuse holder C -SC49- 5 A - Clutch position sender -G476-
Starter motor relay 1 -J906-
Starter motor relay 2 -J907-
15
F50 - vacant - -   -
F51 - vacant - -   -
F52 - vacant - - -
F53 - Fuse 53 on fuse holder C -SC53- 30 A - Window aerial suppression filter -C18-
Suppression filter -C24-
Heated rear window relay -J9-
Heated rear window -Z1-
87

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SEAT LEON 2013 Overview of coupling stations (3, 5-doors and ST vehicle)

Overview of coupling stations (3, 5-doors and ST vehicle)
SEAT LEON 2013 Overview of coupling stations (3, 5-doors and ST vehicle) https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
1 -  Coupling stations on engine wiring
q   Pin connectors: -T10q- , -T14a-
q   Location:
3 - 
6 -  Coupling station on rear lid, centre
q   Pin connectors: -T10h- , -T10j-
q   Location:
9 -  Coupling station on rear driver door
q   Only models with 5-doors
q   Pin connector: -T27c-
q   Location:
10 - 
12 -  Coupling station on left A-pillar
q   Pin connectors: -T17a- , -T17b- , -T17c- , -T17d-
q   Location:
13 -  Coupling station on alternator
q   Pin connectors: -T4w- , -T8s-
q   Location:



SEAT LEON 2013 Coupling station on engine wiring

Coupling station on engine wiring
Location:
front left in engine compartment.
   
SEAT LEON 2013 Coupling station on engine wiring https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
1 -  10-pin connector -T10q-
q   Only models with diesel engine
2 -  14-pin connector -T14a-
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SEAT LEON 2013 Coupling station on front passenger door

Coupling station on front passenger door
Location:
on front passenger side A-pillar.
   
SEAT LEON 2013 Coupling station on front passenger door https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
A -  27-pin connector -T27b-
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SEAT LEON 2013 Coupling station on front passenger seat

Coupling station on front passenger seat
Location:
under front passenger seat.
   
SEAT LEON 2013 Coupling station on front passenger seat https://portal-diagnostov.com/license.html
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1 -  10-pin connector -T10p-
2 -  3-pin connector -T3b-
3 -  4-pin connector -T4a-
Back to overview



SEAT LEON 2013 Coupling station on roof wiring

Coupling station on roof wiring
Location:
Near the front roof module.
   
SEAT LEON 2013 Coupling station on roof wiring https://portal-diagnostov.com/license.html
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1 -  6-pin connector -T6q-
Back to overview



SEAT LEON 2013 Coupling station on rear passenger door

Coupling station on rear passenger door
Location:
on front passenger side B-pillar.
   
SEAT LEON 2013 Coupling station on rear passenger door https://portal-diagnostov.com/license.html
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A -  27-pin connector -T27d-
  Note
Only models with 5-doors
Back to overview



SEAT LEON 2013 Coupling station on rear lid, centre

Coupling station on rear lid, centre
Location:
on the rear lid, centre.
   
SEAT LEON 2013 Coupling station on rear lid, centre https://portal-diagnostov.com/license.html
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1 -  10-pin connector -T10h- black
2 -  10-pin connector -T10j- brown
Back to overview



SEAT LEON 2013 Coupling station in rear bumper

Coupling station in rear bumper
Location:
in bumper.
   
SEAT LEON 2013 Coupling station in rear bumper https://portal-diagnostov.com/license.html
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1 -  6-pin connector -T6l-
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SEAT LEON 2013 Coupling station on rear driver door

Coupling station on rear driver door
Location:
on driver side B-pillar.
   
SEAT LEON 2013 Coupling station on rear driver door https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
1 -  27-pin connector -T27c-
  Note
Only models with 5-doors
Back to overview



SEAT LEON 2013 Coupling station on driver seat

Coupling station on driver seat
Location:
under driver seat.
   
SEAT LEON 2013 Coupling station on driver seat https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file
1 -  10-pin connector -T10n-
2 -  3-pin connector -T3a-
3 -  2-pin connector -T2a-
Back to overview



SEAT LEON 2013 Coupling station on driver door

Coupling station on driver door
Location:
on driver side A-pillar.
   
SEAT LEON 2013 Coupling station on driver door https://portal-diagnostov.com/license.html
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A -  27-pin connector -T27a-
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SEAT LEON 2013 Coupling station on left A-pillar

Coupling station on left A-pillar
Location:
on left A-pillar.
   
SEAT LEON 2013 Coupling station on left A-pillar https://portal-diagnostov.com/license.html
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1 -  17-pin connector -T17a- brown
2 -  17-pin connector -T17b- white
3 -  17-pin connector -T17c- red
4 -  17-pin connector -T17d- blue
Back to overview



SEAT LEON 2013 Coupling station on alternator

Coupling station on alternator
Location:
front left in engine compartment.
   
SEAT LEON 2013 Coupling station on alternator https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file
1 -  4-pin connector -T4w-
q   Only models with engine code CHPA, CJZA, CJZB, CMBA and CXSA
1 -  8-pin connector -T8s-
q   Only models with engine code CJSA, CKFB, CKFC, CLHA, CLHB, CRMB, CRVA, CRVC, CUNA and CUPA
Back to overview



SEAT LEON 2013 Coupling station for radiator fan

Coupling station for radiator fan
Location:
on left in engine compartment.
   
SEAT LEON 2013 Coupling station for radiator fan https://portal-diagnostov.com/license.html
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1 -  4-pin connector -T4g-
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SEAT LEON 2013 Coupling station in front bumper

Coupling station in front bumper
Location:
in bumper.
   
SEAT LEON 2013 Coupling station in front bumper https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file
1 -  8-pin connector -T8a-
Back to overview

   


SEAT LEON 2013

Control units overview (3, 5-doors and ST vehicle)
SEAT LEON 2013 https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file
q   Fitting location and pin connectors, (only ST vehicle):
q   Fitting location and pin connectors for diesel engines:



SEAT LEON 2013

Headlight range control unit -J431-
Location:
behind dash panel, left
   
SEAT LEON 2013 https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file
A -  Headlight range control unit -J431-
A1 -  26-pin connector -T26a-
Back to overview



SEAT LEON 2013

Data bus diagnostic interface -J533-
Location:
under the dash panel.
   
SEAT LEON 2013 https://portal-diagnostov.com/license.html
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A -  Data bus diagnostic interface -J533-
A1 -  20-pin connector -T20a-
Back to overview



SEAT LEON 2013

Front passenger door control unit -J387-
Location:
on the front passenger door.
   
SEAT LEON 2013 https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file
A -  Front passenger door control unit -J387-
A1 -  6-pin connector -T6w-
A2 -  20-pin connector -T20d-
A3 -  16-pin connector -T16h-
A4 -  32-pin connector -T32b-
Back to overview



SEAT LEON 2013

Air conditioning system control unit​ -J301-
Location:
on the dash panel - centre
   
SEAT LEON 2013 https://portal-diagnostov.com/license.html
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A -  Air conditioning system control unit​ -J301-
A1 -  16-pin connector -T16b-
A2 -  20-pin connector -T20b-
Back to overview



SEAT LEON 2013

Climatronic control unit -J255-
Location:
on the dash panel - centre
   
SEAT LEON 2013 https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file
A -  Climatronic control unit -J255-
A1 -  16-pin connector -T16c-
A2 -  16-pin connector -T16d-
A3 -  20-pin connector -T20b-
Back to overview



SEAT LEON 2013

Front camera for driver assist systems -R242-
Location:
near interior mirror
   
SEAT LEON 2013 https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file
A -  Front camera for driver assist systems -R242-
A1 -  12-pin connector -T12i-
Back to overview



SEAT LEON 2013

Sliding sunroof adjustment control unit -J245- (only 3 and 5-doors vehicle)
Location:
on rear sunroof motor
   
SEAT LEON 2013 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
A -  Sliding sunroof adjustment control unit -J245-
A1 -  10-pin connector -T10i-
Back to overview



SEAT LEON 2013

Sliding sunroof adjustment control unit -J245- (only ST vehicle)
Location:
on front sunroof motor
   
SEAT LEON 2013 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
A -  Sliding sunroof adjustment control unit -J245-
A1 -  16-pin connector -T16j-
Back to overview



SEAT LEON 2013

Electronically controlled damping control unit -J250-
Location:
behind left side trim in luggage compartment
   
SEAT LEON 2013 https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file
A -  Electronically controlled damping control unit -J250-
A1 -  47-pin connector -T47a-
Back to overview



SEAT LEON 2013

Trailer detector control unit -J345-
Location:
behind left side trim in luggage compartment
   
SEAT LEON 2013 https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file
A -  Trailer detector control unit -J345-
A1 -  16-pin connector -T16i-
A2 -  12-pin connector -T12j-
Back to overview



SEAT LEON 2013

All-wheel drive control unit -J492-
Location:
on differential
   
SEAT LEON 2013 https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file
A -  All-wheel drive control unit -J492-
A1 -  2-pin connector -T2ad-
A2 -  8-pin connector -T8w-
Back to overview



SEAT LEON 2013

Fuel pump control unit -J538- (petrol engines)
Location:
under the back seat.
   
SEAT LEON 2013 https://portal-diagnostov.com/license.html
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A -  Fuel pump control unit -J538-
A1 -  5-pin connector -T5j-
Back to overview



SEAT LEON 2013

Fuel pump control unit -J538- (diesel engines)
Location:
under the back seat.
   
SEAT LEON 2013 https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file
A -  Fuel pump control unit -J538-
A1 -  6-pin connector -T6ab-
Back to overview



SEAT LEON 2013

Driver door control unit -J386-
Location:
on the driver door.
   
SEAT LEON 2013 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
A -  Driver door control unit -J386-
A1 -  6-pin connector -T6v-
A2 -  20-pin connector -T20c-
A3 -  16-pin connector -T16g-
A4 -  32-pin connector -T32a-
Back to overview



SEAT LEON 2013

Steering column electronics control unit -J527-
Location:
on the steering column electronics.
   
SEAT LEON 2013 https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file
A -  Steering column electronics control unit -J527-
A1 -  4-pin connector -T4c-
A2 -  16-pin connector -T16e-
Back to overview



SEAT LEON 2013

Control unit in dash panel insert -J285-
Location:
on the dash panel.
   
SEAT LEON 2013 https://portal-diagnostov.com/license.html
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A -  Control unit in dash panel insert -J285-
A1 -  18-pin connector -T18a-
Back to overview



SEAT LEON 2013

Onboard supply control unit -J519-
Location:
behind dash panel, left
   
SEAT LEON 2013 https://portal-diagnostov.com/license.html
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A -  Onboard supply control unit -J519-
A1 -  73-pin connector -T73a-
A2 -  46-pin connector -T46b-
A3 -  73-pin connector -T73c-
Back to overview



SEAT LEON 2013

Park assist steering control unit -J446-
Location:
behind dash panel, left
   
SEAT LEON 2013 https://portal-diagnostov.com/license.html
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A -  Park assist steering control unit -J446-
A1 -  26-pin connector -T26b-
A2 -  18-pin connector -T18b-
Back to overview



SEAT LEON 2013 Airbag control unit J234

Airbag control unit -J234-
Location:
under centre console.
   
SEAT LEON 2013 Airbag control unit J234 https://portal-diagnostov.com/license.html
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A -  Airbag control unit -J234-
A1 -  90-pin connector -T90a-
Back to overview

   


SEAT LEON 2013 Earth points overview (3, 5-doors and ST vehicle)

Earth points overview (3, 5-doors and ST vehicle)
SEAT LEON 2013 Earth points overview (3, 5-doors and ST vehicle) https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file
   656 Earth points on right headlight
q   Location
   685 Earth point 1 at front of right longitudinal member
q   Location
   751 Earth point 2, on right A-pillar
q   Location
   638 Earth point, on right A-pillar
q   Location
   687 Earth point 1, on centre tunnel
q   Location
   75 Earth point, rear right pillar
q   Location
   666 Earth point, on rear right of roof
q   Location
   612 Earth point, in centre of rear lid
q   Location
   57 Earth point, rear left pillar
q   Location
   667 Earth point, on rear left of roof
q   Location
   690 Earth point, rear centre roof frame
q   Location
   639 Earth point, left A-pillar
q   Location
   12 Earth point, on left in engine compartment
q   Location
   671 Earth point 1, on front of left longitudinal member
q   Location
   672 Earth point 2, on front of left longitudinal member
q   Location
   673 Earth point 3, on front of left longitudinal member
q   Location
   652 Earth point, engine and gearbox earth
q   Location

   
SEAT LEON 2013 Earth points overview (3, 5-doors and ST vehicle) https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file

   
SEAT LEON 2013 Earth points overview (3, 5-doors and ST vehicle) https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file

   
SEAT LEON 2013 Earth points overview (3, 5-doors and ST vehicle) https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file

   
SEAT LEON 2013 Earth points overview (3, 5-doors and ST vehicle) https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file
   638 Earth point on right A-pillar -arrow B-
Tightening torque:
9 Nm
Back to overview

   
SEAT LEON 2013 Earth points overview (3, 5-doors and ST vehicle) https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file
   687 Earth point 1, on centre tunnel -arrow-
Tightening torque:
9 Nm
Back to overview

   
SEAT LEON 2013 Earth points overview (3, 5-doors and ST vehicle) https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file
   75 Earth point, rear right pillar -arrow-
Tightening torque:
9 Nm
Back to overview

   
SEAT LEON 2013 Earth points overview (3, 5-doors and ST vehicle) https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file
   667 Earth point, on rear left of roof -arrow C-
Tightening torque:
9 Nm
   690 Earth point, rear centre roof frame -arrow B-
Tightening torque:
9 Nm
Back to overview

   
SEAT LEON 2013 Earth points overview (3, 5-doors and ST vehicle) https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file
   612 Earth point, in centre of rear lid -arrow-
Tightening torque:
2 Nm
Back to overview

   
SEAT LEON 2013 Earth points overview (3, 5-doors and ST vehicle) https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file
   57 Earth point, rear left pillar -arrow-
Tightening torque:
9 Nm
Back to overview

   
SEAT LEON 2013 Earth points overview (3, 5-doors and ST vehicle) https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file
   639 Earth point, left A-pillar -arrow-
Tightening torque:
9 Nm
Back to overview

   
SEAT LEON 2013 Earth points overview (3, 5-doors and ST vehicle) https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file
   12 Earth point, on left in engine compartment -arrow-
Back to overview

   
SEAT LEON 2013 Earth points overview (3, 5-doors and ST vehicle) https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file
   672 Earth point 2, on front of left longitudinal member -arrow A-
Tightening torque:
9 Nm
Back to overview

   
SEAT LEON 2013 Earth points overview (3, 5-doors and ST vehicle) https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file
   673 Earth point 3, on front of left longitudinal member -arrow-
Back to overview

   
SEAT LEON 2013 Earth points overview (3, 5-doors and ST vehicle) https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file
   652 Earth point, engine and gearbox earth -arrow-
Back to overview