Passat L4-1984cc 2.0L DOHC (1991)
Test Procedure
-Disconnect battery ground strap
-Remove appropriate interior trim to gain access to alarm system control module
-Remove 6 and 10 pin connectors from alarm control module
All measurements are performed with (US 11 19) multimeter
Refer to the correct wiring diagram as needed
-If all tests OK, replace alarm system ECM
-Reinstall and tighten battery ground strap
-Reinstall interior trim