Volkswagen Workshop Service and Repair Manuals

Note:

The electronic accelerator warning lamp -K132 is known also as the EPC warning lamp.

Special tools, workshop equipment, testers, measuring instruments and auxiliary items required

• ◆ Test box V.A.G 1598/22
• ◆ Hand multimeter V.A.G 1526 or multimeter V.A.G 1715
• ◆ Adapter set V.A.G 1594
• ◆ Current flow diagram

Check conditions

• ● The fuses must be OK.
• ● The battery voltage must be at least 11.5 V.

Checking function of warning lamp

• ‒ Switch on ignition.

• → The EPC warning lamp must light up.

• ‒ Start engine and run at idling speed.

• The EPC warning lamp must
       go out
  when no EPC fault has been stored.

• ‒ Switch off ignition.

Electronic accelerator warning lamp does not light up

• ‒ Remove wiper arms and cowl panel:

=> Electrical system; Repair group 92; Servicing windscreen wiper system

• ‒ → Connect test box V.A.G 1598/22 to control unit wiring harness.
• ‒ Bridge test box sockets 2 + 30 with aux. cables from V.A.G 1594.

• ‒ Switch ignition on.
       The fault lamp must light up

If the fault lamp does not light up:

• ‒ Switch off ignition.
• ‒ Remove dash panel insert and check the bulb and its voltage supply.:

=> Electrical system; Repair group 90; Dash panel insert; Removing and installing dash panel insert

If no fault is found:

• ‒ Check wiring for open circuit between test box socket 30 and dash panel insert using current flow diagram:

=> Current flow diagrams, Electrical fault finding and Fitting locations

If no wiring fault is detected:

• ‒ Renew engine control unit:

=> Repair group 24; Engine control unit; Renewing engine control unit

Electronic accelerator fault lamp lights up continuously

• ‒ → Connect test box V.A.G 1598/22 to control unit wiring harness.
• ‒ Check wiring for short to earth between test box socket 30 and dash panel insert using current flow diagram:

=> Current flow diagrams, Electrical fault finding and Fitting locations

If no wiring fault is detected:

• ‒ Renew engine control unit:

=> Repair group 24; Engine control unit; Renewing engine control unit