Passat Sedan V6-2771cc 2.8L DOHC (AHA) (1998)
If displayed values are OK (as specified):
-
Press -> button to advance program sequence.
-
Press buttons -0- and -6- to select "End Output" function 06, and press -Q- button to confirm input.
-
Switch ignition off.
Continuation of check when display shows part throttle
-
Disconnect 8-pin harness connector -1- for throttle valve control module (arrow -2-).
-
Bridge connector terminals 3 and 7 using adapter cables from VW1594 connector test kit and observe display.
When display shows idle:
-
Press -> button.
-
Press buttons -0- and -6- to select "End Output" function 06, and press -Q- button to confirm input.
-
Switch ignition off.
-
Replace throttle valve control module, item 16. See: Service and Repair
-
Carry out adaptation of throttle valve control module to ECM.
When display shows part throttle:
-
Press -> button.
-
Press buttons -0- and -6- to select "End Output" function 06, and press -Q- button to confirm input.
-
Switch ignition off.
-
Check voltage supply to throttle valve control module and wiring to ECM.
If the voltage supply and wiring is OK:
-
Replace Motronic ECM -J220-. See: Engine Control Module/Service and Repair
Continuation of check when display constantly shows idle