Electronic Power Control (EPC) Warning Lamp -K132-, Checking

Electronic Power Control (EPC) Warning Lamp -K132-, Checking


NOTE: The fault light for power accelerator activation -k132- is also called the EPC warning lamp.


Special tools and equipment







- VAG1594A







- VAG1598/31

Function test of warning lamp
- Switch ignition on.
- The EPC warning lamp must light up for approximately 3 seconds if there are no malfunctions stored in DTC memory that relate to the E-gas system

A - Fault light for power accelerator activation -K132- does not light up
- Connect VAG1598/31 test box at wiring harness to Engine Control Module (ECM), do not connect ECM. Refer to "Scan Tool Testing/Wiring and Component Testing Using VAG1598/31 Test Box",under "Powertrain Management/Computers and Control Systems/Testing and Inspection", Testing and Inspection
- Bridge terminals 1 and 48 at test box using wires from VAG1594A adapter test kit.
- Switch ignition on.
- Warning lamp must light up.

If warning lamp does not light up:
- Switch ignition off.
- Remove instrument cluster:
- Check following wire connection for open circuit and short circuit to B+:

Test box Instrument cluster
VAG1598/31
Socket Terminal
48

- Repair open circuit or short circuit if necessary.

If wire connection is OK:
- Replace Engine Control Module (ECM).

B - Fault light for power accelerator activation -K132- lights up constantly

- Check DTC memory of Engine Control Module (ECM).

If no DTCs are stored:
- Connect VAG1598/31 test box at wiring harness to Engine Control Module (ECM), do not connect ECM. Refer to "Scan Tool Testing/Wiring and Component Testing Using VAG1598/31 Test Box",under "Powertrain Management/Computers and Control Systems/Testing and Inspection", Testing and Inspection
- Remove instrument cluster:
- Check following wire connection for short circuit to Ground (GND):

Test box Instrument cluster
VAG1598/31
Socket Terminal
48

- Repair short circuit if necessary.

If wire connection is OK:
- Replace Engine Control Module (ECM).