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WIRING-DIAGRAMS

SEAT LEON 2004 – Radio, aura, brisa, aura with CD changer . Wiring diagrams, Pin Connector, Location

    HomeSEATSEAT LEONSEAT LEON 2004SEAT LEON 2004 ALL WIRING DIAGRAMS - ENGLISH
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Wiring Diagram SEAT LEON 2004 - Radio - front left treble loudspeaker - front left bass loudspeaker - CD changer



Wiring Diagram SEAT LEON 2004 - Radio - front left treble loudspeaker - front left bass loudspeaker - CD changer Download PDF file
RRadio
R20Front left treble loudspeaker
R21Front left bass loudspeaker
R41CD changer
T8d8-way connector, radio
T10i10-way connector, black, interconnection, strut A, left
T12a12-way connector, glove compartment
T2020-way connector, radio
  V14 Connection (screened), CD changer wiring harness

Wiring Diagram SEAT LEON 2004 - Radio - headphone connection - rear left treble loudspeaker - rear left bass loudspeaker - rear right treble loudspeaker - rear right bass loudspeaker



Wiring Diagram SEAT LEON 2004 - Radio - headphone connection - rear left treble loudspeaker - rear left bass loudspeaker - rear right treble loudspeaker - rear right bass loudspeakerGet access to all wiring diagrams of the carDownload PDF file
RRadio
R13Headphone connection
R14Rear left treble loudspeaker
R15Rear left bass loudspeaker
R16Rear right treble loudspeaker
R17Rear right bass loudspeaker
R22Front right treble loudspeaker
R23Front right treble loudspeaker
T3h3-way connector
T8b8-way connector, radio
T8d8-way connector, radio
T10k10-way connector, black, interconnection, strut A, right
T10l10-way connector, black, interconnection, strut B, left
T10m10-way connector, black, interconnection, strut B, right
T1616-way connector, self-diagnosis
T2020-way connector, radio
  A76 Connection (diagnosis cable K), instrument panel wiring harness

Wiring Diagram SEAT LEON 2004 - Radio - aerial - aerial amplifier



Wiring Diagram SEAT LEON 2004 - Radio - aerial - aerial amplifierGet access to all wiring diagrams of the carDownload PDF file
DIgnition/starter switch
E20Lighting regulator-switches and instruments
G106Ambient temperature indicator
J285Control unit with display in dash panel insert
RRadio
R11Aerial
R24Aerial booster
S10Fuse in fuse box/relay plate
S237Fuse in fuse box
S242Fuse in fuse box
T8b8-pin connector, on radio
T10n10-pin connector, on dash panel insert
T2020-pin connector, on radio
  45 Earth point, behind dash panel
  255 Earth connection -1-, in radio wiring harness
  501 Screw connection -2- (30), on relay plate
  A11 Positive (+) connection (58b), in dash panel wiring harness
  A21 Connection (86s), in dash panel wiring harness
  A27 Connection (speed signal), in dash panel wiring harness
  V22 Positive (+) connection (30a), in navigation wiring harness
*Only models up to October 2001
**Only models up to November 2001


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-, -T10v-
q   Location → page 803/2
2 -  Coupling station, right B-pillar
q   With connector -T10m-
q   Location → page 803/4
3 -  Coupling station on left of C-pillar
q   Location → page 803/4
4 -  Coupling station on left of A-pillar
q   With connector -T10i-
q   Location → page 803/5
5 -  Coupling station in engine compartment, in left wiring harness
q   Location → page 803/5

   

Toledo/León Fitting Locations No.  803 / 2
   
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

   

Toledo/León Fitting Locations No.  803 / 3
   
SEAT LEON 2004 Overview of coupling station and connections for wiring harnessGet access to all wiring diagrams of the carDownload PDF file
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

   

Toledo/León Fitting Locations No.  803 / 4
   


SEAT LEON 2004 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.
 
SEAT LEON 2004 Coupling station, right B-pillarGet access to all wiring diagrams of the carDownload PDF file


SEAT LEON 2004 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
 
SEAT LEON 2004 Coupling station on left of C-pillarGet access to all wiring diagrams of the carDownload PDF file

Toledo/León Fitting Locations No.  803 / 5
   


SEAT LEON 2004 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 2004 Coupling station on left of A-pillarGet access to all wiring diagrams of the carDownload PDF file


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 fuses

Overview of fuses
   
SEAT LEON 2004 Overview of fusesGet access to all wiring diagrams of the carDownload PDF file
1 -  Fuse in fuse holder left dash panel
q   Location → page 802/2
q   Position of fuses → page 802/3
2 -  Auxiliary fuse above additional relay carrier -S37-, -S45-, -S323-, -S111-, -S144-
q   Location → page 802/7
3 -  Fuse on fuse holder -S162-, -S163-, -S164-, -S176-, -S177-, -S178-, -S179-, -S180-, next to battery
q   Location, up to August 2000: → Page 802/8
q   Location, from September 2000: → Page 802/9

   

Toledo/León Fitting Locations No.  802 / 2
   
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.
 
SEAT LEON 2004 Overview of fusesGet access to all wiring diagrams of the carDownload PDF file

Toledo/León Fitting Locations No.  802 / 3
   


SEAT LEON 2004 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  

   

Toledo/León Fitting Locations No.  802 / 4
   


SEAT LEON 2004 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
17 - -S17- 10A - Vacant (applicable up to October 2001)
Taxi (applicable from November 2001)		  
18 - -S18- 10A - Right headlight main beam  
19 - -S19- 10A - Left main beam  
20 - -S20- 15A - Right dipped beam  
21 - -S21- 15A - Left dipped beam  
22 - -S22- 5A - Side light right  
23 - -S23- 5A - Side light left  
24 - -S224- 20A - Windscreen wiper, washer pump  
25 - -S225- 25A - Heater blower  
26 - -S226- 25A - Heated rear window  
27 - -S227- 15A - Rear window wiper  
28 - -S228- 15A - Fuel pump  
29 - -S229- 10A - Diesel engine control unit  
      15A - applicable up to October 2001:
Petrol engine control unit		  
      15A - applicable from November 2001:
Petrol engine control unit, not for AQN, AUE and BDE		  
      20A - applicable from November 2001:
Engine control units AQN, AUE and BDE		  

   

Toledo/León Fitting Locations No.  802 / 5
   
Position of fuses in fuse holder, left dash panel
No.   Current Flow Diagram designation Nominal value   Function/component Terminal
30 - -S230- 20A - Electrical sunroof  
31 - -S231- 20A - Automatic gearbox - AG4  
      5A - Haldex  
32 - -S232- 10A - Injectors (petrol)  
      30A - Diesel engine control unit  
33 - -S233- 20A - Headlight washer system (HWS)  
34 - -S234- 10A - Diesel engine control unit  
      10A - Petrol engine control unit  
35 - -S235- 30A - Caravan tow coupling delay, luggage compartment power socket  
36 - -S236- 15A - Rear fog lights  
37 - -S237- 10A - applicable up to October 2001:
Signal S (ignition key)		  
      5A - applicable from November 2001:
Diesel engine control unit		  
      20A - applicable from November 2001:
Petrol engine control unit, not for AUE and BDE		  
      30A - applicable from November 2001:
Engine control units AUE and BDE		  
38 - -S238- 10A - Luggage compartment light, central locking  
39 - -S239- 15A - Hazard warning lights system  

   

Toledo/León Fitting Locations No.  802 / 6
   
Position of fuses in fuse holder, left dash panel
No.   Current Flow Diagram designation Nominal value   Function/component Terminal
40 - -S240- 20A - Horns  
41 - -S241- 15A - Cigarette lighter  
42 - -S242- 15A - Radio  
43 - -S243- 10A - Petrol engine control unit  
      10A - Diesel engine control unit  
44 - -S244- 15A - Seat heater  

   

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
 
SEAT LEON 2004 Position of fuses in fuse holder, left dash panelGet access to all wiring diagrams of the carDownload PDF file
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
 
SEAT LEON 2004 Position of fuses in fuse holder, left dash panelGet access to all wiring diagrams of the carDownload PDF file

Toledo/León Fitting Locations No.  802 / 8
   


SEAT LEON 2004 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
 
SEAT LEON 2004 Fuse on fuse holder, next to battery (up to August 2000):Get access to all wiring diagrams of the carDownload PDF file

Toledo/León Fitting Locations No.  802 / 9


SEAT LEON 2004 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
 
SEAT LEON 2004 Fuse on fuse holder, next to battery (from September 2000):Get 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
1 -  Earth point, in centre of plenum chamber -608-
q   Location → page 801/2
2 -  Earth point, in plenum chamber -10-
q   Location → page 801/2
3 -  Earth point, on right in plenum chamber -609-
q   Location → page 801/3
4 -  Earth strap, battery - body -1-
q   Location → page 801/3
5 -  Earth points, in left engine compartment -12-
q   Location → page 801/4
6 -  Earth strap, gearbox - body -2-
q   Location → page 801/4

   

Toledo/León Fitting Locations No.  801 / 2
   
  608 Earth point, in centre of plenum chamber ⇒ -arrow-
 
SEAT LEON 2004 Overview of earth points in engine compartmentGet access to all wiring diagrams of the carDownload PDF file
  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

Toledo/León Fitting Locations No.  801 / 3
   
  609 Earth point, on right in plenum chamber ⇒ -arrow-
 
SEAT LEON 2004 Overview of earth points in engine compartmentGet access to all wiring diagrams of the carDownload PDF file
  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

Toledo/León Fitting Locations No.  801 / 4
   
  12 Earth points, on left in engine compartment ⇒ -arrow B-
 
SEAT LEON 2004 Overview of earth points in engine compartmentGet access to all wiring diagrams of the carDownload PDF file
  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

Toledo/León Fitting Locations No.  801 / 5
   
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
1 -  Earth point, lower part of right A-pillar -43-
q   Location → page 801/7
2 -  Earth point, right B-pillar -78-
q   Location → page 801/7
3 -  Earth point, left B-pillar -77-
q   Location → page 801/8
4 -  Earth point, lower part of left A-pillar -44-
q   Location → page 801/8
5 -  Earth point, on right behind dash panel -42-
q   Location → page 801/9
6 -  Earth point, on right behind dash panel -33-
q   Location → page 801/9

   

Toledo/León Fitting Locations No.  801 / 6
   
SEAT LEON 2004 Overview of earth points in engine compartmentGet access to all wiring diagrams of the carDownload PDF file
7 -  Earth point, on left behind dash panel insert -32-
q   Location → page 801/10
8 -  Earth point, behind dash panel -45-
q   Location → page 801/10

   

Toledo/León Fitting Locations No.  801 / 7
   
  43 Earth point, lower part of right A-pillar ⇒ -arrow-
 
SEAT LEON 2004 Overview of earth points in engine compartmentGet access to all wiring diagrams of the carDownload PDF file
  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

Toledo/León Fitting Locations No.  801 / 8
   
  77 Earth point on left B-pillar ⇒ -arrow-
 
SEAT LEON 2004 Overview of earth points in engine compartmentGet access to all wiring diagrams of the carDownload PDF file
  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

Toledo/León Fitting Locations No.  801 / 9
   
  33 Earth point behind dash panel on right ⇒ -arrow-
  42 Same earth point as ⇒ -arrow-
 
SEAT LEON 2004 Overview of earth points in engine compartmentGet access to all wiring diagrams of the carDownload PDF file

Toledo/León Fitting Locations No.  801 / 10
   
  32 Earth point behind dash panel on left ⇒ -arrow-
 
SEAT LEON 2004 Overview of earth points in engine compartmentGet access to all wiring diagrams of the carDownload PDF file
  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

Toledo/León Fitting Locations No.  801 / 11
   


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
1 -  Earth point, on left in luggage compartment -50-
q   Location → page 801/12

   

Toledo/León Fitting Locations No.  801 / 12
   
  50 Earth point, on left in luggage compartment
 
SEAT LEON 2004 Overview of earth points in luggage compartment (Toledo)Get access to all wiring diagrams of the carDownload PDF file

Toledo/León Fitting Locations No.  801 / 13
   


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

Overview of earth points in luggage compartment (León)
SEAT LEON 2004 Overview of earth points in luggage compartment (León)Get access to all wiring diagrams of the carDownload PDF file
1 -  Earth point, left rear pillar -57-
q   Location → page 801/14

   

Toledo/León Fitting Locations No.  801 / 14
   
  57 Earth point, left rear pillar
 
SEAT LEON 2004 Overview of earth points in luggage compartment (León)Get access to all wiring diagrams of the carDownload PDF file
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