Volkswagen Transporter (T4; 1990 – 2003) – fuse box diagram

Volkswagen Transporter (T4; 1990 – 2003) – fuse box diagram

Year of production: 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003

 

Volkswagen Transporter T4  – represents the 4th generation of the legendary Transporter series. This model was produced in 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 and 2003 with diesel and gasoline engines with different wheelbases: short and long, and with different roof height. Also on the T4, Volkswagen continued its lineup of luxury Caravelle, California and Multivan models. In this article, we will show the location of all electronic control sides and a detailed designation of the purpose of fuses and relays Volkswagen T4 with box diagrams in which they are located.

 

Locations

Volkswagen Transporter T4 (1990 - 2003) - fuse box location
Volkswagen Transporter T4 (1990 – 2003) – fuse box location

 

1 Air conditioning control unit 1 – with automatic temperature control – in the heater control panel, front
2 Air conditioning control unit 2 – with automatic temperature control – in the heater control panel, rear – central pillar
3 Evaporator Fan Control Unit (A / C) – With Rear A / C – Behind Right Rear Trim Panel
4 Air conditioning / heater fan motor control unit 1 – with automatic temperature control – front – fan unit
5 Air conditioning / heater blower motor control unit 2- with automatic temperature control – rear- bottom of the body, in the center
6 Aerial amplifier – behind the dash, passenger side
7 Alternator resistor – near additional relays – CV / AUF, with alternator 150A / automatic transmission / automatic temperature control – behind the central part of the dashboard
8 Additional battery – under the driver’s seat
9 Accumulator battery
10 Central locking signal control unit – behind the dashboard
11 Cruise control unit (with throttle motor) – cruise control is controlled by the ECM
12 Electronic cruise control module (without throttle motor) – behind dash, passenger side
13 Diagnostic connector (DLC) – instrument panel, driver’s side
14 Diagnostic unit – 05/99 (except for AAC / ABL / AET / AES / AJA) – in the instrument cluster
15 Cooling Fan Motor Relay – Behind Left Headlight
16 Cooling Fan Motor 1/2 Resistor – Behind Left Headlight
17 Coolant heater control unit (with additional coolant heater – D3W / B4W / D4W) – in the heater – underbody, in the center
18 Coolant heater control unit (with optional coolant heater – B7W / D7W) – behind the dash, passenger side
19 Engine oil pressure warning buzzer – in instrument cluster control unit
21 Fuse / relay box, instrument cluster 1
22 Fuse / relay box 2, dash – under dash fuse / relay box 1
23 Fuse / relay box, dash 3 – above dash fuse / relay box 1
24 Fuse / relay box, dash 4 – behind dash, center
25 Fuse / Relay Box, Driver’s Seat – Under Seat
26 Fuse / Relay Box, Engine Compartment – Battery Powered
27 Additional fuse (5A / 7.5A / 10A) – in the back of the audio system unit
28 Additional fuse (10A) – at the rear of the navigation system control unit
29 Headlights not switched off warning buzzer – in the instrument cluster control unit
30 Heater blower motor resistor – manual temperature control – blower unit, front
31 Horn 1/2 – behind the front bumper
32 Immobilizer control unit – behind the instrument cluster
33 Immobilizer ring antenna – near the ignition switch
34 Turn signal relay, alarm relay – in the alarm switch
35 Instrument Cluster Control Module / Digital Multifunction Display – In Instrument Cluster
36 Outside temperature sensor – behind the front bumper
37 Driver’s seat heating control unit – in the seat heating switch
38 Passenger seat heating control unit – in the seat heating switch
39 SRS control unit – under the dash, center
40 Sunroof electric control unit
41 Theme control unit – in the display of the navigation system
42 Telephone interface control unit – behind the instrument cluster
43 Electronic gearbox control unit – near the engine control unit
44 Vehicle speed sensor – gearbox

 

Passenger compartment

Fuse box location

The main fuse and relay box is located under the dash on the driver’s side.

Fuse box diagram

Version 1

Volkswagen Transporter T4 (1990 - 2003) - fuse box diagram - passenger compartment (version 1)
Volkswagen Transporter T4 (1990 – 2003) – fuse box diagram – passenger compartment (version 1)

A
Description
1 10 Left Headlight Low Beam
2 10 Right Headlight Low Beam
3 10 Instrument & License Lights
4 15 Rear Window Wiper/Washer, Heated Front Seats
5 15 Windshield Wiper/Washer, Rear Window Washer, Heated Washer Jets
6 30 A/C, Fresh Air Fan
7 10 Right Tail Light & Side Marker Light, Engine Compartment Lamp
8 10 Left Taillight & Side Marker Light
9 20 Rear Window & Mirror Heater
10 15 Fog Lamps
11 10 Left Headlight High Beam & High Beam Indicator
12 10 Right Headlight High Beam
13 10 Horn, Radiator Cooling Fan
14 10 Backup Lights, Electric Mirrors, Heated Front Seats, Windshield Washer Jets, Cruise Control, Power Roof
15 10 Engine Electronics
16 15 Warning/Indicator Lights, Multi-Function Indicator, Glove Box Light, ABS
17 10 Turn Signals
18 20 Fuel Pump
19 30 A/C, Radiator Cooling Fan
20 10 Brake Lights
21 15 Dome & Luggage Lamps, Clock, Radio, Central Locking System, Multi-Function Indicator, Vanity Mirror, OBD Diagnostic
22 10 Cigarette Lighter
Relay
1 A/C Control Module Relay
2 Rear Window Wiper/Washer Relay
3 ECM Power Supply Relay
4 Load Reduction Relay
5 Open
6 Emergency Flasher Relay
7 Headlight Washer Relay
8 Washer/Wiper Intermittent Relay
9 Seat Belt Warning Relay
10 Fog Lamp/Parking Lamp Relay
11 Dual Horn Relay
12 Fuel Pump Relay
13 Heater Control Module Relay
14 Coolant Pump After-Run Relay
15 Open
16 Open
17 Open
18 Roof Ventilator Fan (Fuse)
19 Heater Air Blower Relay
20 Starter Interlock/Back-up Light Relay
21 5 Back-up Lights, Cruise Control
22 20 A/C (Second Evaporator)
23 Rear Window Defroster/Heated Mirror Relay
24 20 Power Windows, Central Locking System
25 10 ABS System
26 15 Rear Window Defroster, Heated Mirrors
27 A/C Compressor Clutch Relay

Version 2

Fuse box diagram (main box)

Volkswagen Transporter T4 (1990 - 2003) - fuse box diagram - passenger compartment (version 2)
Volkswagen Transporter T4 (1990 – 2003) – fuse box diagram – passenger compartment (version 2)

A
Description
Relay assignment
1 (105) Heater blower motor relay – rear (ventilation)
2 (174) Rear window wiper / washer relay
3 (30/109) Engine management relay
4 (18) Ignition auxiliary circuits relay 1
5 Reserve
6 (22/21) Emergency ventilation relay (with repeaters for direction indicators on the roof)
7 (95) Headlight washer pump relay
8 (99) Relay for intermittent operation of the windshield wiper / washer
9 (36) Headlamps warning buzzer
10 (53) Fog lamp relay
11 (53) Horn relay
12 (167) Fuel pump relay
Fuse
1 10 Left headlight – low beam, headlight range control
2 10 Right headlight – low beam, headlight range control
3 10 License plate lamps
4 15 Rear window wiper / washer, auxiliary ignition circuit relay 2, additional equipment
5 15 Windshield wiper / washer, heaters for windshield washer nozzles (05/01)
6 30 Air conditioning system, heater fan motor
7 10 Front right side / rear right side lamps
8 10 Lamps front left / rear left
9 20 Heated rear window, heated outside mirror
10 15 Fog lights
11 10 Left headlamp-high beam
12 10 RH headlamp-high beam
13 10 Sound signal
14 10 ABS system (with ESP), automatic transmission control system, additional equipment, central locking, cruise control system, power windows, power rear-view mirrors on the doors, reverse light (s)
15 10 Engine management system, crankcase ventilation heater, cruise control system, vehicle speed sensor
16 15 ABS indicator, glove box illumination lamp, turn signals, immobilizer, instrument cluster
17 10 Additional heater
18 20 Engine management system, fuel pump
19 30 A/C, Radiator Cooling Fan
20 10 Stop lights
21 15 Audio system, diagnostic connector (DLC), interior lamps, navigation system

Additional Fuse box

It is located under the main block.

Volkswagen Transporter T4 (1990 - 2003) - fuse box diagram - additional fuse box
Volkswagen Transporter T4 (1990 – 2003) – fuse box diagram – additional fuse box

A
Description
1 15 Accessory power connector
2 15 Trailer electrical connector
3 10 Roof identification light
4 20 Additional heater (AC V / AH Y / AJT / AU F)
5 10 Anti-lock braking system (ABS)
6 FOR Phone
7 15 Taxi
8 10 Roof fan
9 15 Audio system, instrument cluster
10 15 Central locking
11 15 Heated seats
12 30 Heated door mirrors, heated rear window
13 FOR PHONE (ACV / AH Y / AJT / AU F)
14 30 Air conditioning system – manual automatic temperature control
15 20 Additional heater

 

Additional relay box 1

Located at the top of the main unit.

Relay box diagram

Volkswagen Transporter T4 (1990 - 2003) - fuse box diagram - additional relay box no. 1
Volkswagen Transporter T4 (1990 – 2003) – fuse box diagram – additional relay box no. 1

  Description
1 (53) Coolant pump relay
2 (125) Idle speed control (AM) relay
3 (137) Glow plug control unit (ABL)
4 (53) Ignition auxiliary circuits relay 2 (some models)
5 (53) Ignition auxiliary circuits relay 2 (AES, with air conditioning)
F1 30 Power window fuse
F2 15 Engine control unit
F3 15 Actuator

Additional relay box 2

It is located behind the dashboard in the center.

Fuse box diagram

Volkswagen Transporter T4 (1990 - 2003) - fuse box diagram - additional relay box no. 2
Volkswagen Transporter T4 (1990 – 2003) – fuse box diagram – additional relay box no. 2

 Description
1 (106) Auxiliary heater relay
2 Audio / Telephone Speaker Switch Relay
3 (53) (53) Heater blower motor relay – rear (warm air)
4 (114) Heater blower motor relay – automatic temperature control
5 (152) Heater radiator coolant valve relay (rear heater)
6 (38) Air intake changeover actuator relay (A / C / heater)
7 (53) Alternator relay (AES, with 150A alternator)
8 (53) Alternator relay (ACV / AUF, with alternator 150A / automatic / automatic temperature control)
9 (175) Start inhibit switch relay / reversing lamp relay
10 (87) Wheel hub connection control unit

 

Another unit can be located under the driver’s seat. The following items may be located there: (214/426) Relay for additional battery, (403) Relay for additional heater, (30A) Additional liquid heating system, (5A) Sockets , etc.

 

Engine compartment

Fuse box location

This unit is located on the cover in front of the battery.

Fuse box diagram

Volkswagen Transporter T4 (1990 - 2003) - fuse box diagram - engine compartment
Volkswagen Transporter T4 (1990 – 2003) – fuse box diagram – engine compartment

 


 Description
1 60A Glow plug relay
2 50A Cooling fan motor
3 50A Cooling fan motor
4 50A Anti-lock braking system (ABS)
5 110A/150A/175A Generator
6 30A System of maintaining exchange rate stability
7 30A Anti-lock braking system (with ESP)
8 5A System of maintaining exchange rate stabilit

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.