AUTOMOTIVE ELECTRICIANS

VW POLO 2004 – Trailer operation . Wiring diagrams, Pin Connector, Location

Wiring Diagram VW POLO 2004 - Onboard supply control unit - trailer socket



Wiring Diagram  VW POLO 2004 - Onboard supply control unit - trailer socket
E1Light switch
E23Front and rear fog light switch
FBrake light switch
J519Onboard supply control unit
SB3Fuse 3 in fuse holder
SB12Fuse 12 in fuse holder
SB13Fuse 13 in fuse holder
T13a13-pin connector
T16a16-pin connector, black
T1717-pin connector
U10Trailer socket
  87 Earth connection 2, in rear wiring harness
  A5 Positive connection (right turn signal), in dash panel wiring harness
  A6 Positive connection (left turn signal), in dash panel wiring harness
  A84 Connection (58L), in dash panel wiring harness
  A85 Connection (58R), in dash panel wiring harness
  A88 Connection (RFL), in dash panel wiring harness
  A89 Connection 2 (54), in dash panel wiring harness
  E107 Connection (left parking light), in dash panel wiring harness
  E108 Connection (right parking light), in dash panel wiring harness

Wiring Diagram VW POLO 2004 - Trailer socket - rear fog light cut-out contact switch and warning lamp



F4Reversing light switch
F216Rear fog light cut-out contact switch
K18Trailer operation warning lamp
J285Control unit with display in dash panel insert
J519Onboard supply control unit
M41Left tail light and rear fog light bulb
S133Fuse 3 in fuse holder, onboard supply control unit
S163Fuse 2 (30), in fuse holder on battery
T3a3-pin connector, grey, on left of bulkhead
T3x3-pin connector
T6n6-pin connector, blue, on left of bulkhead
T13a13-pin connector
T16a16-pin connector, black
T32a32-pin connector
U10Trailer socket
  87 Earth connection 2, in rear wiring harness
  A32 Positive connection (30), in dash panel wiring harness
  A40 Positive connection 1 (30), in dash panel wiring harness
  A88 Connection (RFL), in dash panel wiring harness
  A121 Connection (high bus), in dash panel wiring harness
  A122 Connection (low bus), in dash panel wiring harness
  B170 Positive connection 2 (30), in interior wiring harness
  B182 Connection (RL), in interior wiring harness
*models with automatic gearbox ⇒ CFD for automatic gearbox


VW POLO 2004 Overview of control units

Overview of control units
   
q   Connectors
q   Connector T8c
q   From November 2007, Fitting Locations
5 -  Parking aid control unit -J446-
q   Fitting location
q   Connectors

   
q   From November 2007, Fitting Locations
q   From November 2007, Fitting Locations
q   Heated driver seat control unit -J131-
q   Fitting location
q   Heated front seats control unit -J774-
q   Fitting location
11 -  Dipped headlight control unit, on/off (Coming home system) -J665-
q   ⇒ Fitting locations; Relay assignment; Relay carrier (15 slot) page 803/3 position -7-

   
q   Connectors
14 -  Air conditioning system control unit -J301-
q   ⇒ Workshop manual; Heating; Air conditioning System; Heating, air conditioning system; Repair group 87
q   Connector, models with no side airbag
q   Connector, models with side airbag
q   Connectors

Polo Fitting Locations No.  804 / 4
   
q   From November 2007, Fitting Locations
q   Discontinued from November 2005

Polo Fitting Locations No.  804 / 5
   
Convenience system central control unit -J393-
Fitting location:
Under dash panel ⇒ Position 2
 
Connectors convenience system central control unit -J393-
A -  Convenience system central control unit
Multi-pin connections:
B -  Connector -T12i-
q   Brown
C -  Connector -T23-
D -  Connector -T12c-
q   Black

   

VW POLO 2004 32-pin connector,T32a, on dash panel insert -J285-

Polo Fitting Locations No.  804 / 8
   
 -  16 - Coolant shortage indicator sender
 -  17 - Immobilizer reader coil
 -  18 - Rear fog light warning lamp
 -  19 - Fog light warning lamp
 -  20 - Belt switch warning lamp
 -  21 - Handbrake warning
 -  22 - Brake fluid level warning contact
 -  23 - Oil pressure switch
 -  24 - Wake-up
 -  25 - Vacant
 -  26 - Vacant
 -  27 - Multifunction display
 -  28 - Vacant
 -  29 - Vacant
 -  30 - Windscreen washer fluid level sender
 -  31 - Ambient temperature sensor
 -  32 - Terminal 31 for sender-output
 

VW POLO 2004 8-pin connector, T8c, on dash panel insert -J285-

8-pin connector, T8c, on dash panel insert -J285-
 -  1 - Brake pad warning lamp
 -  2 - Vacant
 -  3 - Vacant
 -  4 - Right parking light
 -  5 - Terminal 15 - input
 -  6 - Left parking light
 -  7 - Terminal 30 - input
 -  8 - Terminal 31 - input
 
VW POLO 2004 8-pin connector, T8c, on dash panel insert -J285-Get access to all wiring diagrams of the car

VW POLO 2004 Right door control unit, to November 2007

Right door control unit, to November 2007
Front passenger door control unit -J387-
VW POLO 2004 Right door control unit, to November 2007Get access to all wiring diagrams of the car
A -  Front passenger door control unit
Multi-pin connections:
B -  Connector -T8i-
C -  Not assigned
Rear right door control unit -J389-
A -  Rear right door control unit
Multi-pin connections:
B -  Connector -T8k-
C -  Not assigned

   

VW POLO 2004 Right door control unit, from November 2007

Right door control unit, from November 2007
Front passenger door control unit -J387-
VW POLO 2004 Right door control unit, from November 2007Get access to all wiring diagrams of the car
A -  Front passenger door control unit
Multi-pin connections:
B -  Connector -T16f-
Rear right door control unit -J389-
A -  Rear right door control unit
Multi-pin connections:
B -  Connector -T16h-

   

VW POLO 2004 Parking aid control unit -J446-

Parking aid control unit -J446-
Fitting location:
On right behind luggage compartment side trim
1 -  Parking aid control unit -J446-
2 -  Rear parking aid warning buzzer -H15-
A -  16-pin connector -T16d-
B -  12-pin connector -T12n-
C -  2-pin connector -T2aa-
 
VW POLO 2004 Parking aid control unit -J446-Get access to all wiring diagrams of the car
Connectors for parking aid control unit -J446-
VW POLO 2004 Parking aid control unit -J446-Get access to all wiring diagrams of the car
A -  Parking aid control unit
Connectors:
B -  Connector -T12n-
C -  Not assigned
D -  Connector -T16d-

   

VW POLO 2004 Fuel pump control unit -J538-

Fuel pump control unit -J538-
VW POLO 2004 Fuel pump control unit -J538-Get access to all wiring diagrams of the car
Fitting location:
Under rear bench seat ⇒ -arrow-

   

VW POLO 2004 Left door control unit, to November 2007

Left door control unit, to November 2007
Driver door control unit -J386-
VW POLO 2004 Left door control unit, to November 2007Get access to all wiring diagrams of the car
A -  Driver door control unit
Multi-pin connections:
B -  Pin connector -T8h-
C -  Connector -T6aa-
Rear left door control unit -J388-
A -  Rear left door control unit
Multi-pin connections:
B -  Connector -T8j-
C -  Not assigned

   

VW POLO 2004 Left door control unit, from November 2007

Left door control unit, from November 2007
Driver door control unit -J386-
VW POLO 2004 Left door control unit, from November 2007Get access to all wiring diagrams of the car
A -  Driver door control unit
Multi-pin connections:
B -  Connector -T16e-
Rear left door control unit -J388-
A -  Rear left door control unit
Multi-pin connections:
B -  Connector -T16g-

   

VW POLO 2004 Heated driver seat control unit -J131-

Heated driver seat control unit -J131-
Fitting location:
On driver seat frame ⇒ -arrow-


VW POLO 2004 Heated front passenger seat control unit -J132-



VW POLO 2004 Heated front seats control unit -J774-

VW POLO 2004 Onboard supply control unit -J519-

Onboard supply control unit -J519-
VW POLO 2004 Onboard supply control unit -J519-Get access to all wiring diagrams of the car
Fitting location:
Under dash panel ⇒ Position 1

   
Connectors on onboard supply control unit -J519-
VW POLO 2004 Onboard supply control unit -J519-Get access to all wiring diagrams of the car
XP1 - Connector -T6o-
t  Black
XP2 - Connector -T6j-
t  Brown
XP3 - Connector -T6x-
t  White
XP4 - Connector -T5a-
t  Black
XP5 - Connector -T5c-
t  Brown
XS1 - Connector -T6c-
t  Black
XS2 - Connector -T18b-
t  Black
XS3 - Connector -T6y-
t  Brown
XS4 - Connector -T18a-
t  Brown
XS5 - Connector -T6k-
t  Red
XS6 - Connector -T16a-
t  Black

   

VW POLO 2004 Airbag control unit -J234-

Airbag control unit -J234-
Fitting location:
Under centre console at front ⇒ -arrow-
  Note:
Earth connection via housing for vehicle earth!
 
VW POLO 2004 Airbag control unit -J234-Get access to all wiring diagrams of the car
Connectors on airbag control unit -J234-
Models with no side airbag
   
VW POLO 2004 Airbag control unit -J234-Get access to all wiring diagrams of the car
A -  Airbag control unit
Pin connector:
B -  Connector -T50-

   
Connectors on airbag control unit -J234-
Models with no side airbag
   
VW POLO 2004 Airbag control unit -J234-Get access to all wiring diagrams of the car
A -  Airbag control unit
Pin connector:
B -  Connector -T75-

   

VW POLO 2004 Mobile telephone operating electronics control unit -J412-

A -  Mobile telephone operating electronics control unit

VW POLO 2004 Overview of all earth points

Overview of all earth points
   
VW POLO 2004 Overview of all earth pointsGet access to all wiring diagrams of the car
671 -  Earth point 1, on front of left longitudinal member
12 -  Earth point, on left in engine compartment
652 -  Earth point, engine and gearbox earth
11 -  Earth point, in battery box
640 -  Earth point 2, in engine compartment
29 -  Earth point, on left in engine compartment, behind battery
606 -  Earth point, under centre console, near selector lever
61 -  Earth point, on left C-pillar

   
14 -  Earth point, on gearbox (depends on equipment)
13 -  Earth point, on right in engine compartment
15 -  Earth point, on cylinder head (depends on equipment)
614 -  Earth point 2, on right in engine compartment
610 -  Earth point (audio), at front under centre console
637 -  Earth point, airbag control unit

   
12 - Earth point, on left in engine compartment
14 - Earth point, on gearbox
  Note:
Depends on equipment
 
11 - Earth point, in battery box
640 - Earth point 2, in engine compartment
 
VW POLO 2004 Overview of all earth pointsGet access to all wiring diagrams of the car
29 - Earth point, on left in engine compartment behind battery
61 - Earth point, left C-pillar
 
  Note:
Discontinued, from 2006
 
VW POLO 2004 Overview of all earth pointsGet access to all wiring diagrams of the car
614 - Earth point 2, on right in engine compartment
15 - Earth point, on cylinder head
  Note:
Depends on equipment
 

VW POLO 2004 Earth points, in interior



VW POLO 2004



VW POLO 2004 Coupling station rear lid

Coupling station rear lid
Fitting location:
On left C-pillar
1 -  5-pin connector, vacant
2 -  5-pin connector -T5b-, brown
3 -  5-pin connector -T5e-, black
 
VW POLO 2004 Coupling station rear lidGet access to all wiring diagrams of the car


VW POLO 2004 coupling station heater, air conditioning system

VW POLO 2004 Coupling station driver seat



VW POLO 2004 coupling station front passenger seat

VW POLO 2004 Coupling station bulkhead (14-pin)

Coupling station bulkhead (14-pin)
Pin connector:
VW POLO 2004 Coupling station bulkhead (14-pin)Get access to all wiring diagrams of the car
A -  Connector -T8x-
q   Orange
B -  Connector -T6n-
q   Blue
C -  Connector -T6r-
q   Brown
D -  Connector -T11a-
q   White
E -  Connector -T6v-
q   Green
F -  Connector -T3a-
q   Grey
G -  Connector -T6q-
q   Red

   
H -  Not assigned
I -  Connector -T11c-
q   Blue
K -  Connector -T11b-
q   Red
L -  Connector -T11d-
q   Brown
M -  Connector -T9a-
q   Yellow
N -  Connector -T6w-
q   Orange
P -  Connector -T12a-
q   White

   

VW POLO 2004 Coupling station left in engine compartment



VW POLO 2004 Coupling station, on right in engine compartment

Coupling station, on right in engine compartment
Fitting location:
t  Near suspension tower
1 -  2-pin connector, charge pressure control solenoid valve*
2 -  2-pin connector, activated charcoal filter system solenoid valve*
3 -  2-pin connector, coolant shortage indicator sender *
4 -  6-pin connector, Lambda probe before catalytic converter*
5 -  2-pin connector, temperature sensor after DPF*
6 -  2-pin connector, temperature sensor before DPF*
7 -  2-pin connector, exhaust gas temperature sensor*
* -  Not with all levels of equipment
 
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