Golf L4-1.8L Turbo (AWW) (2003)
-
Connect VAG1598/31 test box to control module wiring harness. The engine control module remains disconnected.
-
Check wiring between test box and 4-pin connector to Motronic control module for open circuit using wiring diagram.
Contact 3 and socket 68
Contact 4 and socket 69
Wire resistance: max. 1.5 Ohm
-
Additionally check wiring at 4-pin connector for short to one another.
Contact 4 and socket 68
Specification: infinity Ohm
If no wiring fault is detected:
-
Replace engine control module.
Oxygen Sensor Aging Check
Oxygen Sensor Aging Check
Special tools and equipment
-
V.A.G 1551 Scan Tool or vehicle system tester V.A.G 1552 with cable V.A.G 1551/3