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SEAT LEON 2006 – Body electrical Leon . Wiring diagrams, Pin Connector, Location

Wiring Diagram SEAT LEON 2006 - Battery - starter - ignition/starter switch - X-contact relief relay



Wiring Diagram  SEAT LEON 2006 - Battery - starter - ignition/starter switch - X-contact relief relay https://portal-diagnostov.com/license.html
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ABattery
BStarter
DIgnition/starter switch
J59X-contact relief relay
S176Fuse 4 (30) in fuse holder on battery
T6l6-pin connector, brown, in connector protective housing, on left in plenum chamber
  500 Screw connection 1 (30), on relay plate
  501 Screw connection 2 (30), on relay plate
  503 Screw connection 2 (75x), on relay plate
  A2 Positive connection (15), in dash panel wiring harness
  A32 Positive connection (30), in dash panel wiring harness
  A49 Connection 1, in dash panel wiring harness
  A80 Connection 1 (X), in dash panel wiring harness

Wiring Diagram SEAT LEON 2006 - Control unit with display in dash panel insert - immobilizer reader coil - driver side belt switch - lights switched on warning buzzer



Wiring Diagram  SEAT LEON 2006 - Control unit with display in dash panel insert - immobilizer reader coil - driver side belt switch - lights switched on warning buzzer https://portal-diagnostov.com/license.html
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CAlternator
D2Immobilizer reader coil
E24Driver side belt switch
H16Lights switched on warning buzzer
J...Engine control units
J285Control unit with display in dash panel insert
J362Immobilizer control unit
K2Alternator warning lamp
K19Seat belt warning system warning lamp
K63Warning lamp for symbol "yellow triangle" (auto-check system with voice output)
K117Immobilizer control unit
T1010-pin connector, orange, in connector protective housing, on left in plenum chamber
T10d10-pin connector, white, in connector protective housing, on left in plenum chamber
  81 Earth connection 1, in dash panel wiring harness
  A121 Connection (high bus), in dash panel wiring harness
  A122 Connection (low bus), in dash panel wiring harness
  B163 Positive connection 1 (15), in interior wiring harness

Wiring Diagram SEAT LEON 2006 - Control unit with display in dash panel insert - rev. counter - trailer operation warning lamp - reserve fuel warning lamp - oil level and oil temperature sender



Wiring Diagram  SEAT LEON 2006 - Control unit with display in dash panel insert - rev. counter - trailer operation warning lamp - reserve fuel warning lamp - oil level and oil temperature sender https://portal-diagnostov.com/license.html
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G5Rev. counter
G22Speedometer
J...Engine control units
J255Climatronic control unit
J285Control unit with display in dash panel insert
K18Trailer operation warning lamp
K105Reserve fuel warning lamp
L75Digital display illumination bulb
Y4Odometer display
T1010-pin connector, orange, in connector protective housing, on left in plenum chamber
T12d12-pin connector, on Climatronic
T14a14-pin connector, in left wiring harness
  A27 Connection (speed signal), in dash panel wiring harness
  A43 Connection (57L), in dash panel wiring harness
  A44 Connection (57R), in dash panel wiring harness
  A84 Connection (58L), in dash panel wiring harness
  A85 Connection (58R), in dash panel wiring harness

Wiring Diagram SEAT LEON 2006 - Control unit with display in dash panel insert - main beam warning lamp - rear fog light warning lamp - left turn signal warning lamp - digital clock - excessive road speed warning buzzer



Wiring Diagram  SEAT LEON 2006 - Control unit with display in dash panel insert - main beam warning lamp - rear fog light warning lamp - left turn signal warning lamp - digital clock - excessive road speed warning buzzer https://portal-diagnostov.com/license.html
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G21Speedometer
H10Excessive road speed warning buzzer
J285Control unit with display in dash panel insert
J393Convenience system central control unit
K1Main beam warning lamp
K13Rear fog light warning lamp
K65Left turn signal warning lamp
K94Right turn signal warning lamp
Y2Digital clock
  135 Earth connection 2, in dash panel wiring harness
  A13 Connection (door contact switch), in dash panel wiring harness
  A51 Connection (56), in dash panel wiring harness
*only models with excessive road speed warning buzzer

Wiring Diagram SEAT LEON 2006 - Control unit with display in dash panel insert - multifunction display call-up button - handbrake warning switch



Wiring Diagram  SEAT LEON 2006 - Control unit with display in dash panel insert - multifunction display call-up button - handbrake warning switch https://portal-diagnostov.com/license.html
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E86Multifunction display call-up button
E109Multifunction display memory switch
F9Handbrake warning switch
F34Brake fluid level warning contact
G33Windscreen washer fluid level sender
J285Control unit with display in dash panel insert
K4Side light warning lamp
K14Handbrake warning lamp
K37Washer fluid level warning lamp
K102Rear lid closed warning lamp
K118Brake system warning lamp
  179 Earth connection, in left headlight wiring harness
  269 Earth connection (sender earth) 1, in dash panel wiring harness
  A115 Connection (handbrake warning), in dash panel wiring harness

Wiring Diagram SEAT LEON 2006 - Turn signal switch - headlight dipper/flasher switch - left headlight twin filament bulb



Wiring Diagram  SEAT LEON 2006 - Turn signal switch - headlight dipper/flasher switch - left headlight twin filament bulb https://portal-diagnostov.com/license.html
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E2Turn signal switch
E4Headlight dipper/flasher switch
E19Parking light switch
L1Left headlight twin filament bulb
M1Left side light bulb
M5Front left turn signal bulb
M18Left side mounted turn signal bulb
S18Fuse in relay plate fuse holder
S19Fuse in relay plate fuse holder
S21Fuse in relay plate fuse holder
T88-pin connector, left headlight
  179 Earth connection, in left headlight wiring harness
  B166 Connection (56a), in interior wiring harness

Wiring Diagram SEAT LEON 2006 - Hazard warning light switch - turn signal relay - hazard warning light system warning lamp - right headlight twin filament bulb



Wiring Diagram  SEAT LEON 2006 - Hazard warning light switch - turn signal relay - hazard warning light system warning lamp - right headlight twin filament bulb https://portal-diagnostov.com/license.html
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E3Hazard warning light switch
J1Turn signal relay
K6Hazard warning light system warning lamp
L2Right headlight twin filament bulb
M3Right side light bulb
M7Front right turn signal bulb
M19Right side mounted turn signal bulb
S20Fuse in relay plate fuse holder
T8a8-pin connector, right headlight
  179 Earth connection, in left headlight wiring harness
  B167 Connection (56b), in interior wiring harness
*models with range control adjuster only
**models without range control adjuster only

Wiring Diagram SEAT LEON 2006 - Brake light switch - brake pedal switch - rear left turn signal bulb - left brake and tail light bulb - high level brake light bulb



Wiring Diagram  SEAT LEON 2006 - Brake light switch - brake pedal switch - rear left turn signal bulb - left brake and tail light bulb - high level brake light bulb https://portal-diagnostov.com/license.html
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FBrake light switch
F63Brake pedal switch
J...Engine control units
M6Rear left turn signal bulb
M21Left brake and tail light bulb
M25High level brake light bulb
T5s5-pin connector
T6h6-pin connector, on left in luggage compartment
  219 Earth connection 2, in rear lid wiring harness
  A6 Positive connection (left turn signal), in dash panel wiring harness
  A98 Positive connection 4 (30), in dash panel wiring harness
  B131 Connection (54), in interior wiring harness
  W1 Positive connection 1 (54), in rear wiring harness
*only models with diesel engine

Wiring Diagram SEAT LEON 2006 - Reversing light switch - rear right turn signal bulb - left reversing light bulb - right reversing light bulb - right brake and tail light bulb - rear left and right fog light bulbs



Wiring Diagram  SEAT LEON 2006 - Reversing light switch - rear right turn signal bulb - left reversing light bulb - right reversing light bulb - right brake and tail light bulb - rear left and right fog light bulbs https://portal-diagnostov.com/license.html
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F4Reversing light switch
L46Rear left fog light bulb
L47Rear right fog light bulb
M8Rear right turn signal bulb
M16Left reversing light bulb
M17Right reversing light bulb
M22Right brake and tail light bulb
T3j3-pin connector, in left rear lid
T3k3-pin connector, in right rear lid
T5a5-pin connector
T6i6-pin connector, in right luggage compartment
  98 Earth connection, in rear lid wiring harness
  A5 Positive connection (right turn signal), in dash panel wiring harness
  A87 Connection (RL), in dash panel wiring harness
  A88 Connection (RFL), in dash panel wiring harness
  W4 Connection 1 (rear fog lights), in rear wiring harness
  W33 Connection (reversing light), in rear lid wiring harness

Wiring Diagram SEAT LEON 2006 - Rear lid release switch - tank filler flap remote release switch - luggage compartment light switch - luggage compartment light - button illumination bulb



Wiring Diagram  SEAT LEON 2006 - Rear lid release switch - tank filler flap remote release switch - luggage compartment light switch - luggage compartment light - button illumination bulb https://portal-diagnostov.com/license.html
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E165Rear lid release switch
E204Tank filler flap remote release switch
F5Luggage compartment light switch
G266Oil level and oil temperature sender
J393Convenience system central control unit
L76Button illumination bulb
S323Fuel tank lock release fuse
V155Tank filler flap locking motor
W3Luggage compartment light
T14a14-pin connector, in left wiring harness
  85 Earth connection 1, in engine compartment wiring harness
  98 Earth connection, in rear lid wiring harness
  A29 Connection (interior light), in dash panel wiring harness
  B114 Connection (inhibitor switch), in interior wiring harness
  Y1 Positive connection (30), in interior light wiring harness
  W15 Connection 1 (luggage compartment light), in rear wiring harness
*only models with extended servicing intervals

Wiring Diagram SEAT LEON 2006 - Cigarette lighter illumination bulb - radio - cigarette lighter



Wiring Diagram  SEAT LEON 2006 - Cigarette lighter illumination bulb - radio - cigarette lighter https://portal-diagnostov.com/license.html
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L28Cigarette lighter illumination bulb
RRadio
S10Fuses in relay plate fuse holder
S12Fuses in relay plate fuse holder
S13Fuses in relay plate fuse holder
S15Fuses in relay plate fuse holder
S239Fuse on fuse holder
S240Fuse on fuse holder
S241Fuse on fuse holder
S242Fuse on fuse holder
U1Cigarette lighter
T10d10-pin connector, white, in connector protective housing, on left in plenum chamber
T1616-pin connector, self-diagnosis
  255 Earth connection 1, in radio wiring harness
  A4 Positive connection (58b), in dash panel wiring harness
  A11 Positive connection (58b), in dash panel wiring harness
  A21 Connection (86s), in dash panel wiring harness
  A76 Connection (diagnosis wire K), in dash panel wiring harness
  V22 Positive connection (30a), in navigation wiring harness

Wiring Diagram SEAT LEON 2006 - Light switch - fog light switch - rear fog light switch - fog light warning lamp - light switch



Wiring Diagram  SEAT LEON 2006 - Light switch - fog light switch - rear fog light switch - fog light warning lamp - light switch https://portal-diagnostov.com/license.html
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E1Light switch
E7Fog light switch
E18Rear fog light switch
K17Fog light warning lamp
L9Light switch illumination bulb
S236Fuse on fuse holder
T8a8-pin connector, right headlight
*Preparation for fog light

Wiring Diagram SEAT LEON 2006 - Horn plate - horn or dual tone horn - dual tone horn relay - glove compartment light - number plate light



Wiring Diagram  SEAT LEON 2006 - Horn plate - horn or dual tone horn - dual tone horn relay - glove compartment light - number plate light https://portal-diagnostov.com/license.html
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HHorn plate
H1Dual tone horn
J4Dual tone horn relay
S1Fuses in relay plate fuse holder
S3Fuses in relay plate fuse holder
S4Fuses in relay plate fuse holder
W6Glove compartment light
XNumber plate lights
T5a5-pin connector
T5b5-pin connector, next to steering column
  176 Earth connection, in right headlight wiring harness
  A37 Connection (58a), in dash panel wiring harness
  A61 Positive connection (x), in dash panel wiring harness
  A90 Connection (dual tone horn), in dash panel wiring harness
  W41 Positive connection (58), in licence plate lights wiring harness
*only models with dual tone horn

Wiring Diagram SEAT LEON 2006 - Switches and instruments illumination regulator - headlight range control regulator - left headlight range control motor - right headlight range control motor



Wiring Diagram  SEAT LEON 2006 - Switches and instruments illumination regulator - headlight range control regulator - left headlight range control motor - right headlight range control motor https://portal-diagnostov.com/license.html
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E20Switches and instruments illumination regulator
E102Headlight range control regulator
V48Left headlight range control motor
V49Right headlight range control motor
T88-pin connector, left headlight
T8a8-pin connector, right headlight
  101 Earth connection, in headlight range adjustment wiring harness
  176 Earth connection, in right headlight wiring harness
  A103 Connection 2 (56), in dash panel wiring harness
  A114 Connection (headlight range control), in dash panel wiring harness
*models with range control adjuster only

Wiring Diagram SEAT LEON 2006 - Fresh air blower switch - fresh air and air recirculation flap switch - fresh air and air recirculation warning lamp - fresh air regulator illumination bulb - potentiometer for temperature selection rotary knob



Wiring Diagram  SEAT LEON 2006 - Fresh air blower switch - fresh air and air recirculation flap switch - fresh air and air recirculation warning lamp - fresh air regulator illumination bulb - potentiometer for temperature selection rotary knob https://portal-diagnostov.com/license.html
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E9Fresh air blower switch
E159Fresh air/air recirculation flap switch
G267Potentiometer for temperature selection rotary knob
J361Simos control unit
K114Fresh air and air recirculation warning lamp
L16Fresh air regulator illumination bulb
N24Fresh air blower series resistor with overheating fuse
S2Fuses in relay plate fuse holder
S225Fuse on fuse holder
V2Fresh air blower
V154Fresh air/recirculated air flap control motor
T4c4-pin connector, under front passenger seat
T8r8-pin connector, on heater
T10v10-pin connector, green, in connector protective housing, on left in plenum chamber
  162 Earth connection, in blower motor wiring harness
  A20 Connection (15a), in dash panel wiring harness
  L48 Connection (15a), in heater (Thermotronic) operating unit wiring harness
  L66 Connection, in heater blower wiring harness
*only models with engine code BFQ

Wiring Diagram SEAT LEON 2006 - Heated rear window switch - heated rear window warning lamp - heated rear window switch illumination bulb - rear window wiper motor - windscreen and rear window washer pump - heated rear window



Wiring Diagram  SEAT LEON 2006 - Heated rear window switch - heated rear window warning lamp - heated rear window switch illumination bulb - rear window wiper motor - windscreen and rear window washer pump - heated rear window https://portal-diagnostov.com/license.html
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E15Heated rear window switch
K10Heated rear window warning lamp
L39Heated rear window switch illumination bulb
S224Fuse on fuse holder
S226Fuse on fuse holder
S227Fuse on fuse holder
V12Rear window wiper motor
V59Windscreen and rear window washer pump
Z1Heated rear window
T5s5-pin connector
T7a7-pin connector, in centre console
  A97 Connection (53), in dash panel wiring harness
  A102 Connection (windscreen wiper), in dash panel wiring harness
  W8 Connection (15 a), in rear wiring harness

Wiring Diagram SEAT LEON 2006 - Intermittent wiper switch - intermittent wipe regulator - automatic intermittent wash and wipe relay - windscreen wiper motor



Wiring Diagram  SEAT LEON 2006 - Intermittent wiper switch - intermittent wipe regulator - automatic intermittent wash and wipe relay - windscreen wiper motor https://portal-diagnostov.com/license.html
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E22Intermittent wiper switch
E38Intermittent wiper regulator
J31Automatic intermittent wash and wipe relay
VWiper motor
  A96 Connection (53a), in dash panel wiring harness
  A97 Connection (53), in dash panel wiring harness


SEAT LEON 2006 Overview of relay

Overview of relay
   
SEAT LEON 2006 Overview of relay https://portal-diagnostov.com/license.html
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1 - 
2 -  Relay on relay plate
q   Position of relays
2 - 

   
Relay in left engine compartment:
A -  Secondary air pump relay -J299- (100)
 -  High heat output relay -J360- (100) (only models with auxiliary heater)
B -  Terminal 30 voltage supply relay -J689- (428)
 -  Current supply relay for Simos control unit -J363- (429) (for models with engine code BFQ only)
 -  Low heat output relay -J359- (53) (only models with auxiliary heater)
C -  Vacant
 
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SEAT LEON 2006 Relay on relay plate

Relay on relay plate
1 -  Dual tone horn relay -J4- (53)
2 -  X-contact relief relay -J59- (100)
3 -  Vacant
4 -  Fuel pump relay -J17- (409)
 -  Glow plug relay -J52- (103)
V y Vl -  Automatic intermittent wash and wipe relay -J31-
 -  with rain sensor, with/without headlight washer system (192)
 -  without rain sensor, with headlight washer system (389)
 -  without rain sensor, without headlight washer system (377)
 
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SEAT LEON 2006 Relay on the 13 position additional relay carrier above the relay plate

Relay on the 13 position additional relay carrier above the relay plate
Left-handdrive vehicles:
1 -  Telephone relay
2....9 -  Vacant
10 -  Fuel pump relay (turbo diesel engine unit injectors) (167) -J17- (up to October 2002)
 -  Fuel pump relay (TDI-PD) (53) (from November 2002)
11 -  Automatic gearbox relay AG4 -J60- (175)
12 -  Terminal 30 voltage supply relay -J317- (109)
13 -  Radiator fan relay (53)
 
SEAT LEON 2006 Relay on the 13 position additional relay carrier above the relay plate https://portal-diagnostov.com/license.html
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Right-handdrive vehicles:
1....5 -  Vacant
6 -  Telephone switch-over relay
7 -  Radiator fan relay -J26- (53)
8 -  Terminal 30 voltage supply relay (109)
9 -  Automatic gearbox relay AG4 -J60- (175)
10 -  Fuel pump relay (turbo diesel engine unit injectors)-J17- (167) (up to October 2002)
 -  Fuel pump relay (TDI-PD) (53) (from November 2002)
11 -  Vacant
12 -  Cigarette lighter relay Australia -J193- (53)
13 -  Vacant
 
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SEAT LEON 2006 Glow plug activation control unit:

Glow plug activation control unit:
A -  Glow plug activation control unit -J370- (with engine code ARL only)
 
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SEAT LEON 2006 Overview of fuses

Overview of fuses
   
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1 - 
q   Position of fuses
2 - 
3 -  Fuse on fuse holder -S162-, -S163-, -S164-, -S176-, -S177-, -S178-, -S179-, -S180-, next to battery
q   Location, up to August 2000:
q   Location, from September 2000:

   
Fuse in fuse holder, dash panel
Fuse colours
30 A -  green
25 A -  white
20 A -  yellow
15 A -  blue
10 A -  red
7,5 A -  brown
5 A -  beige
3 A -  purple
The fuse electrical connections are shown in the respective current flow diagrams. The fuses for options not mentioned are also shown in the respective Current flow diagrams.
Fuses from S 24 are designated with an additional characteristic o. distinctive feature "2" in the Current Flow Diagram, for example: S 40 is designated as S 240.
 
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SEAT LEON 2006 Position of fuses in fuse holder, left dash panel

Position of fuses in fuse holder, left dash panel
No.   Current Flow Diagram designation Nominal value   Function/component Terminal
1 - -S1- 10A - Glove compartment light, heated washer jets  
2 - -S2- 10A - Turn signals  
3 - -S3- 5A - Side light warning lamp  
4 - -S4- 5A - Number plate light  
5 - -S5- 7.5A - Number plate light  
6 - -S6- 5A - Electric folding exterior mirror and window regulator (applicable up to October 2001)
Convenience system central control unit (applicable from November 2001)
 
7 - -S7- 10A - Reversing light  
8 - -S8- 5A - Telephone  
9 - -S9- 5A - ABS/ESP/HALDEX  
10 - -S10- 10A - Petrol engine control unit (applicable up to October 2001)
Diesel engine control unit (applicable up to October 2001)
- S-contact (applicable from November 2001)
 
11 - -S11- 5A - Dash panel insert  
12 - -S12- 7.5A - Diagnosis voltage  
13 - -S13- 10A - Brake lights  
14 - -S14- 10A - Interior light  
15 - -S15- 5A - Dash panel insert, steering angle sender  
16 - -S16- 10A - Compressor  

   

SEAT LEON 2006 Position of fuses in fuse holder, left dash panel

Toledo/León Fitting Locations No.  802 / 5
   

Toledo/León Fitting Locations No.  802 / 6
   

Toledo/León Fitting Locations No.  802 / 7
   
Auxiliary fuse above additional relay carrier
Right-handdrive vehicles
A -  Seat adjustment fuse -S45- (30 A)
B -  Vacuum pump fuse (20 A)
C -  Window regulator fuse -S37- (30 A)
D -  Fuel charging hole fuse -S323- (10 A)
E -  Alarm horn fuse -S111- (15 A)
 -  Turn signal fuse -S144- (15 A)
F -  Taxi fuse (15 A)
G -  Vacant
H -  Vacant
 
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Left-handdrive vehicles:
A -  Seat adjustment fuse -S45- (30 A)
B -  Vacuum pump fuse (20 A)
C -  Window regulator fuse -S37- (30 A)
D -  Vacant
E -  Taxi fuse (15 A)
F -  Alarm horn fuse 1 -S111- (15 A)
 -  Turn signal fuse -S144- (15 A)
G -  Fuel charging hole fuse -S323- (10 A)
H -  Vacant
 
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SEAT LEON 2006 Fuse on fuse holder, next to battery (up to August 2000):

Fuse on fuse holder, next to battery (up to August 2000):
Fuses:
S162 -  Glow plug heater 50 A
S163 -  Engine control unit 50 A
S164 -  Radiator fan 40 A
S176 -  Passenger compartment, 110A
S177 -  Alternator (90 A), 110 A
 -  Alternator (120 A), 150 A
S178 -  ABS (pump), 30 A
S179 -  ABS, 30 A
S180 -  Radiator fan 30 A
 
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SEAT LEON 2006 Fuse on fuse holder, next to battery (from September 2000):

Fuse on fuse holder, next to battery (from September 2000):
A -  Red wire, 16mm²
   
Fuses:
S162 -  Glow plug heater 50 A
S163 -  Engine control unit 50 A
S164 -  Radiator fan 40 A
S176 -  Passenger compartment, 110A
S177 -  Alternator (90 A), 110 A
 -  Alternator (120 A), 150 A
S178 -  ABS (pump), 30 A
S179 -  ABS, 30 A
S180 -  Radiator fan 30 A
 
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SEAT LEON 2006 Overview of coupling station and connections for wiring harness

Overview of coupling station and connections for wiring harness
   
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1 -  Coupling station in protective housing, in plenum chamber
q   With connectors -T10g-, -T10d-, -T10e-, -T10-, -T6l-, -T10h-,
2 -  Coupling station, right B-pillar
q   With connector
3 -  Coupling station on left of C-pillar
q   Location
4 -  Coupling station on left of A-pillar
q   With connector
5 -  Coupling station in engine compartment, in left wiring harness
q   Location

   
Coupling station in protective housing, in plenum chamber
SEAT LEON 2006 Overview of coupling station and connections for wiring harness https://portal-diagnostov.com/license.html
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1 -  10-pin connector -T10g-, grey, automatic gearbox
2 -  10-pin connector, -T10d-, white, data bus wire, engine control unit, automatic gearbox, Motronic control unit, ABS control unit
3 -  10-pin connector -T10e-, black, cruise control system, Motronic control unit, engine control unit
4 -  10-pin connector -T10-, orange, reversing lights, engine control unit, starter, Climatronic control unit, Motronic control unit
5 -  6-pin connector -T6l-, brown, starter, fuel pump relay, engine control unit

   

Toledo/León Fitting Locations No.  803 / 3
   
SEAT LEON 2006 Overview of coupling station and connections for wiring harness https://portal-diagnostov.com/license.html
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6 -  10-pin connector -T10h-, blue, accelerator position sender, Motronic control unit, engine control unit
7 -  10-pin connector, -T10v-, green, radiator outlet coolant temperature sender, radiator fan control unit, potentiometer for temperature selection rotary knob

   

SEAT LEON 2006 Coupling station, right B-pillar

Coupling station, right B-pillar
1 -  10-pin connector -T10m-, black, signal loudspeakers, central locking, rear electric window regulator, rear door warning lamp
The wiring on the B-pillar, left, is installed vice versa.
 
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SEAT LEON 2006 Coupling station on left of C-pillar

Coupling station on left of C-pillar
See connectors in fitting locations: Multi-pin connections.
1 -  Earth connection
2 -  Rear fog light, number plate light, reversing lights
black
3 -  Rear window wiper and washer system (only for Leon)
pink
4 -  Central locking
brown
 
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SEAT LEON 2006 Coupling station on left of A-pillar

Coupling station on left of A-pillar
1 -  10-pin connector -T10i-, black, central locking, electric mirror adjustment, radio with muting / electric windows
The wiring on the A-pillar, right, is installed vice versa.
 
SEAT LEON 2006 Coupling station on left of A-pillar https://portal-diagnostov.com/license.html
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SEAT LEON 2006 Coupling station in engine compartment, in left wiring harness

Coupling station in engine compartment, in left wiring harness
See connectors in fitting locations: Multi-pin connections.
 
SEAT LEON 2006 Coupling station in engine compartment, in left wiring harness https://portal-diagnostov.com/license.html
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SEAT LEON 2006 Overview of earth points in engine compartment

Overview of earth points in engine compartment
   
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  608 Earth point, in centre of plenum chamber ⇒ -arrow-
 
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  10 Earth point, in plenum chamber ⇒ -arrow-
 
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  609 Earth point, on right in plenum chamber ⇒ -arrow-
 
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  1 Earth strap, battery - body
⇒ Arrow A
 
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  12 Earth points, on left in engine compartment ⇒ -arrow B-
 
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  2 Earth strap, gearbox - body ⇒ -arrow-
 
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Overview of earth points in vehicle interior
SEAT LEON 2006 Overview of earth points in engine compartment https://portal-diagnostov.com/license.html
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Toledo/León Fitting Locations No.  801 / 6
   
SEAT LEON 2006 Overview of earth points in engine compartment https://portal-diagnostov.com/license.html
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  43 Earth point, lower part of right A-pillar ⇒ -arrow-
 
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  78 Earth point on right B-pillar ⇒ -arrow-
 
SEAT LEON 2006 Overview of earth points in engine compartment https://portal-diagnostov.com/license.html
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  77 Earth point on left B-pillar ⇒ -arrow-
 
SEAT LEON 2006 Overview of earth points in engine compartment https://portal-diagnostov.com/license.html
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  44 Earth point, lower part of left A-pillar ⇒ -arrow-
 
SEAT LEON 2006 Overview of earth points in engine compartment https://portal-diagnostov.com/license.html
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  33 Earth point behind dash panel on right ⇒ -arrow-
  42 Same earth point as ⇒ -arrow-
 
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  32 Earth point behind dash panel on left ⇒ -arrow-
 
SEAT LEON 2006 Overview of earth points in engine compartment https://portal-diagnostov.com/license.html
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  45 Earth point, behind dash panel
 
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SEAT LEON 2006 Overview of earth points in luggage compartment (Toledo)

Overview of earth points in luggage compartment (Toledo)
SEAT LEON 2006 Overview of earth points in luggage compartment (Toledo) https://portal-diagnostov.com/license.html
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  50 Earth point, on left in luggage compartment
 
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Overview of earth points in luggage compartment (León)
SEAT LEON 2006 Overview of earth points in luggage compartment (León) https://portal-diagnostov.com/license.html
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  57 Earth point, left rear pillar
 
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