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WIRING-DIAGRAMS

SEAT LEON 2004 – Four-wheel drive (Syncro) for diesel engines . Wiring diagrams, Pin Connector, Location

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Wiring Diagram SEAT LEON 2004 - Four-wheel drive control unit - haldex coupling pump



Wiring Diagram SEAT LEON 2004 - Four-wheel drive control unit - haldex coupling pump Download PDF file
DIgnition/starter switch
J...Engine control units
J104ABS control unit with EDL
J217Automatic gearbox control unit
J492Four-wheel drive control unit
V181Haldex coupling pump
T10d10-pin connector, green, in connector protective housing, on left in plenum chamber
  86 Earth connection 1, in rear wiring harness
  219 Earth connection 2, in rear lid wiring harness
  A2 Positive connection (15), in dash panel wiring harness
  A121 Connection (high bus), in dash panel wiring harness
  A122 Connection (low bus), in dash panel wiring harness
*only models with automatic gearbox
**only Toledo
---only Leon

Wiring Diagram SEAT LEON 2004 - Fuel pump - Oil pressure control motor - hydraulic temperature sender - fuel gauge sender - four-wheel drive control unit



Wiring Diagram SEAT LEON 2004 - Fuel pump - Oil pressure control motor - hydraulic temperature sender - fuel gauge sender - four-wheel drive control unitGet access to all wiring diagrams of the carDownload PDF file
FBrake light switch
GFuel gauge sender
G6Fuel system pressurisation pump
G169Fuel gauge sender 2
G271Hydraulic temperature sender
J17Fuel pump relay
J248Diesel direct injection system control unit
J317Terminal 30 voltage supply relay
J492Four-wheel drive control unit
V184Oil pressure control motor
T2nb2-pin connector, Syncro
T9b9-pin connector, on additional relay carrier
T10d10-pin connector, green, in connector protective housing, on left in plenum chamber
  269 Earth connection (sender earth) 1, in dash panel wiring harness
  501 Screw connection 2 (30), on relay plate
  A32 Positive connection (30), in dash panel wiring harness
  A71 Connection (86), in dash panel wiring harness
  B131 Connection (54), in interior wiring harness
  B429 Connection (EFPR), in main wiring harness

Wiring Diagram SEAT LEON 2004 - Control unit with display in dash panel insert - handbrake warning switch - fuel gauge - coolant temperature gauge



Wiring Diagram SEAT LEON 2004 - Control unit with display in dash panel insert - handbrake warning switch - fuel gauge - coolant temperature gaugeGet access to all wiring diagrams of the carDownload PDF file
F9Handbrake warning switch
G1Fuel gauge
G2Coolant temperature display sender
G3Coolant temperature gauge
J285Control unit with display in dash panel insert
K14Handbrake warning lamp
T14a14-pin connector, in left wiring harness
T1616-pin connector, self-diagnosis
  81 Earth connection 1, in dash panel wiring harness
  135 Earth connection 2, in dash panel wiring harness
  A76 Connection (diagnosis wire K), in dash panel wiring harness
  A115 Connection (handbrake warning), in dash panel wiring harness


SEAT LEON 2004 Overview of coupling station and connections for wiring harness

Overview of coupling station and connections for wiring harness
   
SEAT LEON 2004 Overview of coupling station and connections for wiring harnessGet access to all wiring diagrams of the carDownload PDF file
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 2004 Overview of coupling station and connections for wiring harnessGet access to all wiring diagrams of the carDownload PDF file
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

   
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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 2004 Coupling station, right B-pillar

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SEAT LEON 2004 Coupling station on left of C-pillar

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SEAT LEON 2004 Coupling station on left of A-pillar

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SEAT LEON 2004 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 2004 Coupling station in engine compartment, in left wiring harnessGet access to all wiring diagrams of the carDownload PDF file


SEAT LEON 2004 Overview of earth points in engine compartment

Overview of earth points in engine compartment
   
SEAT LEON 2004 Overview of earth points in engine compartmentGet access to all wiring diagrams of the carDownload PDF file

   
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  10 Earth point, in plenum chamber ⇒ -arrow-
 
SEAT LEON 2004 Overview of earth points in engine compartmentGet access to all wiring diagrams of the carDownload PDF file
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  1 Earth strap, battery - body
⇒ Arrow A
 
SEAT LEON 2004 Overview of earth points in engine compartmentGet access to all wiring diagrams of the carDownload PDF file
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  2 Earth strap, gearbox - body ⇒ -arrow-
 
SEAT LEON 2004 Overview of earth points in engine compartmentGet access to all wiring diagrams of the carDownload PDF file
Overview of earth points in vehicle interior
SEAT LEON 2004 Overview of earth points in engine compartmentGet access to all wiring diagrams of the carDownload PDF file

   
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  78 Earth point on right B-pillar ⇒ -arrow-
 
SEAT LEON 2004 Overview of earth points in engine compartmentGet access to all wiring diagrams of the carDownload PDF file
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  44 Earth point, lower part of left A-pillar ⇒ -arrow-
 
SEAT LEON 2004 Overview of earth points in engine compartmentGet access to all wiring diagrams of the carDownload PDF file
  33 Earth point behind dash panel on right ⇒ -arrow-
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  45 Earth point, behind dash panel
 
SEAT LEON 2004 Overview of earth points in engine compartmentGet access to all wiring diagrams of the carDownload PDF file

SEAT LEON 2004 Overview of earth points in luggage compartment (Toledo)

Overview of earth points in luggage compartment (Toledo)
SEAT LEON 2004 Overview of earth points in luggage compartment (Toledo)Get access to all wiring diagrams of the carDownload PDF file

   
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SEAT LEON 2004 Overview of relay

Overview of relay
   
SEAT LEON 2004 Overview of relayGet access to all wiring diagrams of the carDownload PDF file
1 - 
2 -  Relay on relay plate
q   Position of relays
2 - 

   
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SEAT LEON 2004 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)
 
SEAT LEON 2004 Relay on relay plateGet access to all wiring diagrams of the carDownload PDF file

SEAT LEON 2004 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 2004 Relay on the 13 position additional relay carrier above the relay plateGet access to all wiring diagrams of the carDownload PDF file
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
 
SEAT LEON 2004 Relay on the 13 position additional relay carrier above the relay plateGet access to all wiring diagrams of the carDownload PDF file

SEAT LEON 2004 Glow plug activation control unit:

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