Jetta L4-2.0L (AEG) (2000)
If display remains at 0°:
- 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 of throttle valve control module and wiring to control module.
If the voltage supply and wiring is OK:
- Replace Engine Control Module (ECM).
Continuation of check when display is above 90°
- Disconnect 8-pin harness connector from throttle valve control module.
If display jumps to 0°:
- 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 -J338-.
- Check DTC memory. If necessary, repair any malfunctions and erase DTC memory.
- Adapt Engine Control Module (ECM) to throttle valve control module.
- Display readiness code.
If DTC memory has been erased or the Engine Control Module (ECM) was disconnected from permanent battery (B+) voltage, the readiness code
must be generated again.
If display remains above 90°:
- 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 of throttle valve control module and wiring to control module.
If the voltage supply and wiring is OK:
- Replace Engine Control Module (ECM).