Volkswagen Transporter T4 1991-2003 Fault Codes

Engines included:

  • 1.8 Petrol (PD)
  • 1.9 D Diesel (1X)
  • 1.9 TD Diesel (ABL)
  • 2.0 Petrol (AAC)
  • 2.4 D Diesel (AAB)
  • 2.4 D Diesel (AJA)
  • 2.5 Petrol (AAF)
  • 2.5 Petrol (ACU)
  • 2.5 Petrol (AEN)
  • 2.5 Petrol (AET)
  • 2.5 Petrol (AEU)
  • 2.5 Petrol (APL)
  • 2.5 Petrol (AVT)
  • 2.5 TDI Diesel (ACV)
  • 2.5 TDI Diesel (AHY)
  • 2.5 TDI Diesel (AJT)
  • 2.5 TDI Diesel (AUF)
  • 2.5 TDI Diesel (AXG)
  • 2.5 TDI Diesel (AXL)
  • 2.5 TDI Diesel (AYC)
  • 2.5 TDI Diesel (AYY)
  • 2.8 VR6 Petrol (AES)
  • 2.8 VR6 Petrol (AMV)

Diagnostic Instructions

Connect an OBD scanner to your Volkswagen Transporter T4 1991-2003 to retrieve diagnostic fault codes.

OBD Connector Location

Diagnostic connector location

Steps:

  • Connect OBD scanner to diagnostic port
  • Turn ignition to ON position (engine off)
  • Follow scanner instructions to read codes
  • Record any codes displayed
  • Consult service manual for code meanings

Fault Codes including 19 manufacturer-specific

Powertrain
Code Description
P25DE Available in product
P2AD2 Available in product
P349C Available in product
P349D Available in product
P349E Available in product
P349F Available in product
P34A0 Available in product
P34A1 Available in product
P34A2 Available in product
P34A3 Available in product
Body
Code Description
B0123 Pedestrian alert speaker 2
Chassis
Code Description
C003A Available in product
Network
Code Description
U028D Available in product
U028E Available in product
U028F Available in product
U0290 Lost communication with active aerodynamic feature control unit 4
U1162 Available in product
U1185 Available in product
Other
Code Description
17082 Available in product
40B7 Available in product
90A1 Available in product

Showing 21 of 19021 codes · Page 20 of 20

Repair guides

Change Car Accessory Belt Kit

Change Car Accessory Belt Kit

Easy 0h30–1h30
Change Car Air Filter

Change Car Air Filter

Very easy 0h30–0h30
Change Car Battery

Change Car Battery

Very easy 0h30–0h45
Change Car Cabin Filter

Change Car Cabin Filter

Very easy 0h30–0h45
Change Car Clutch

Change Car Clutch

Technical 3h30–12h00
Change Car Front Brake Discs and Pads

Change Car Front Brake Discs and Pads

Easy 2h00–3h30
Change Car Front Brake Pads

Change Car Front Brake Pads

Easy 1h30
Change Car Fuel Filter

Change Car Fuel Filter

Easy 0h30–1h30
Change Car Glow Plugs

Change Car Glow Plugs

Intermediate 0h45–4h00
Change Car Handbrake Cable

Change Car Handbrake Cable

Very easy 0h30
Change Car Oil Filter

Change Car Oil Filter

Easy 0h30–1h00
Change Car Particulate Filter (DPF)

Change Car Particulate Filter (DPF)

Easy 0h30–2h30
Change Car Rear Silencer

Change Car Rear Silencer

Easy 0h30–1h30
Change Car Shock Absorbers

Change Car Shock Absorbers

Easy 1h30–5h00
Change Car Spark Plugs

Change Car Spark Plugs

Easy 0h45–2h00
Change Car Timing Belt Kit

Change Car Timing Belt Kit

Very technical 3h30–8h00
Change Car Turbo

Change Car Turbo

Very technical 3h30–21h00
Change Car Water Pump

Change Car Water Pump

Easy 1h30–7h00
View all repair guides →