Passat Syncro Wagon V6-2.8L (ATQ) (2000)
If warning lamp does not light up when ignition is switched on:
-
Switch ignition off.
-
Check wire from Engine Control Module (ECM) to MIL as follows:
-
Connect test box to control module wiring harness.
-
Bridge sockets 1 + 48 of test box with the respective adapter cables.
-
Switch on ignition:
Warning lamp must light up.
If warning lamp does not light up:
-
Switch ignition off.
-
Remove instrument cluster:
-
Check wiring connection from Engine Control Module (ECM) to Electronic Power Control (EPC) Warning Lamp -K132- according to wiring
diagram.
-
Erase DTC memory of Engine Control Module (ECM). See: Powertrain Management/Computers and Control Systems/Testing and Inspection
-
Generate readiness code. See: Powertrain Management/Computers and Control Systems/Testing and Inspection
If no malfunctions are detected in wire from Engine Control Module (ECM) to warning lamp:
-
Replace Motronic Engine Control Module (ECM) -J220-.
If warning lamp lights up when ignition is switched on:
Start engine and let run at idle:
Warning lamp must go out after a few seconds.
If warning lamp does not go out:
-
Switch ignition off.
-
Remove instrument cluster:
-
Connect test box to control module wiring harness.
-
Check wire connection between test box socket 48 and instrument cluster for short circuit to Ground (GND) according to wiring diagram.
-
Erase DTC memory of Engine Control Module (ECM). See: Powertrain Management/Computers and Control Systems/Testing and Inspection
-
Generate readiness code. See: Powertrain Management/Computers and Control Systems/Testing and Inspection
If no malfunctions are detected in wire from Engine Control Module (ECM) to warning lamp:
-
Replace Motronic Engine Control Module (ECM) -J220-.