Golf L4-1.9L DSL Turbo (ALH) (1999)
-
Check wiring between test box and connector for open circuit according to wiring diagram.
Terminal 1 + socket 2
Terminal 1 + socket 28
Terminal 2 + socket 46
-
Wire resistance: max. 1.5 ohms
-
Additionally check wires for short to one another, to vehicle Ground and to battery positive (B+).
-
Specification: Infinity ohms
If wiring and the resistance measurement values are OK:
-
Replace engine control module. See: Computers and Control Systems/Engine Control Module/Service and Repair