Jetta GLS L4-1.8L Turbo (AWD) (2001)
-
Switch off ignition.
If the specifications are not attained:
-
Connect test box VAG 1598/31 to control module wiring harness. The engine control module remains disconnected.
-
Check the wiring between test box and connector for open circuit using wiring diagram:
Contact 1 + socket 92
Contact 2 + socket 83
Contact 3 + socket 117
Contact 4 + socket 84
Contact 5 + socket 118
Contact 6 + socket 91
Wire resistance: max. 1.5 ohms
-
Additionally check wires for short to one another.
-
Additionally check the wiring for short to battery positive or Ground.
If no wiring fault is detected:
-
Check engine control module voltage supply. Refer to "Control Module Voltage Supply Check" See: Engine Control Module/Testing and
Inspection