Jetta Wagon L4-1.8L Turbo (AWP) (2005)
-
Connect V.A.G1598/31 test box to control module wiring harness. Engine control module remains disconnected.
-
Check wiring for open circuit between test box sockets 40 + 41 and air conditioner system using wiring diagram.
Wire resistance: max. 1.5 Ohms
If no fault can be found in the wiring:
-
Check function of air conditioner control module.
-
Check DTC Memory, if necessary, repair any malfunctions and then Erase DTC Memory. See: Testing and Inspection/Reading and Clearing
Diagnostic Trouble Codes/Reading Diagnostic Trouble Codes/With Manufacturer's Scan Tool/DTC Memory, Checking and Erasing (Functions 02
and 05)
-
Read readiness code. If DTC memory has been erased or engine control module was disconnected from permanent positive, readiness code must
be generated again.