Operation CHARM: Car repair manuals for everyone.

Test I

PINPOINT TEST I: THE ALARM SYSTEM DOES NOT DISARM - USING THE DISARM SWITCHES


Test I1-I4:






Test I5-I7:






Test I8:






Normal Operation
The anti-theft alarm inhibit or liftgate disarm switches ground the vehicle security module through the switches allowing entry without setting off the alarm. The switches must operate before the mechanical lock unlocks. This is to prevent the anti-theft alarm from activating when it should have been disarmed.

Possible Causes
- Anti-theft alarm inhibit switch
- Liftgate disarm switch
- Vehicle security module
- circuit 25 (DG/VT)
- circuit 1205 (BK)