SEAT LEON 2013 – Auxiliary air heater . Wiring diagrams, Pin Connector, Location

Wiring Diagram SEAT LEON 2013 - Terminal 30 voltage supply relay - Low heat output relay - Auxiliary air heater element

A	Battery
J317	Terminal 30 voltage supply relay, in E-box in engine compartment
J359	Low heat output relay, in E-box in engine compartment
J623	Engine control unit, on left in engine compartment
SB4	Fuse 4 on fuse holder B, in E-box in engine compartment
SB24	Fuse 24 on fuse holder B, in E-box in engine compartment
T94a	94-pin connector
Z35	Auxiliary air heater element
D182	Connection 3 (87a) in engine compartment wiring harness

Wiring Diagram SEAT LEON 2013 - High heat output relay

J360	High heat output relay, in E-box in engine compartment
J623	Engine control unit, on left in engine compartment
SB11	Fuse 11 on fuse holder B, in E-box in engine compartment
SB12	Fuse 12 on fuse holder B, in E-box in engine compartment
T94a	94-pin connector
D182	Connection 3 (87a) in engine compartment wiring harness

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

Overview of relay (3, 5-doors and ST vehicle)

The fittings locations are identical on LHD and RHD models.

1 -

q	Position of relays, only right-hand drive models:

q

2 -	Relay carrier on electronics box

q	on left in engine compartment

q	Components: -J179- , -J271- , -J317- , -J359- , -J360- , -J413- , -J757- , -J906- , -J907-

q	Position of relays:

Relay assignment on E-box

1 -	Automatic glow period control unit -J179-

q	Position A6

q	Only models with diesel engine

2 -	Low heat output relay -J359-

q	Position A7

3 -

vacant

q	Position A10

4 -	Starter motor relay 2 -J907-

q	Position A2

5 -	Starter motor relay 1 -J906-

q	Position A1

6 -	Horn relay -J413-

q	Position A3

7 -	High heat output relay -J360-

q	Position A4

8 -	Main relay -J271-

q	Position A5

q	Only models with petrol engine

8 -	Terminal 30 voltage supply relay -J317-

q	Position A5

q	Only models with diesel engine

9 -	Engine component current supply relay -J757-

q	Position A8

q	Engine code CJSA

10 -

vacant

q	Position A9

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SEAT LEON 2013 Position of relays under dash panel, only left-hand drive models

Position of relays under dash panel, only left-hand drive models

1 -	Trailer voltage supply relay -J941-

q	Position B1

2 -

vacant

q	Position B2

3 -

vacant

q	Position B3

4 -	Relay for power sockets -J807-

q	Position B6

5 -	Heated rear window relay -J9-

q	Position B5

6 -	Terminal 15 voltage supply relay -J329-

q	Position B4

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SEAT LEON 2013

Position of relays under dash panel, only right-hand drive models

1 -	Trailer voltage supply relay -J941-

q	Position B1

2 -

vacant

q	Position B2

3 -

vacant

q	Position B3

4 -	Relay for power sockets -J807-

q	Position B6

5 -	Heated rear window relay -J9-

q	Position B5

6 -	Terminal 15 voltage supply relay -J329-

q	Position B4

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

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

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.

A -	2-pin connector -T2u-

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SEAT LEON 2013 ABS control unit J104 ABS control unit -J104- Location: in engine compartment.

A -	ABS control unit -J104-

A1 -	38-pin connector -T38a-

According to equipment

Back to overview

SEAT LEON 2013 ABS control unit J104 ABS control unit -J104- Location: in engine compartment.

A -	ABS control unit -J104-

A1 -	46-pin connector -T46a-

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

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

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.

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.

A -	Adaptive cruise control unit -J428-

A1 -	8-pin connector -T8r-

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

Overview of fuses (3, 5-doors and ST vehicle)

The fittings locations are identical on LHD and RHD models.

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

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

Back to overview SEAT LEON 2013 Fuse holder B SB Fuse holder B -SB- Location: On electronics box, on left in engine compartment

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	-	-		-

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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	-	-		-

Back to overview SEAT LEON 2013 Fuse holder C SC Fuse holder C -SC- Location, only left-hand drive models: on left under dash panel

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

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

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

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

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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

638	Earth point on right A-pillar -arrow B-

Tightening torque:

9 Nm

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687	Earth point 1, on centre tunnel -arrow-

Tightening torque:

9 Nm

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75	Earth point, rear right pillar -arrow-

Tightening torque:

9 Nm

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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

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612	Earth point, in centre of rear lid -arrow-

Tightening torque:

2 Nm

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57	Earth point, rear left pillar -arrow-

Tightening torque:

9 Nm

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639	Earth point, left A-pillar -arrow-

Tightening torque:

9 Nm

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12	Earth point, on left in engine compartment -arrow-

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672	Earth point 2, on front of left longitudinal member -arrow A-

Tightening torque:

9 Nm

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673	Earth point 3, on front of left longitudinal member -arrow-

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652	Earth point, engine and gearbox earth -arrow-

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