Operation CHARM: Car repair manuals for everyone.

Test A: The Alarm System Does Not Arm/Disarm - From The Driver Door Lock Cylinder

PINPOINT TEST A: THE ALARM SYSTEM DOES NOT ARM/DISARM - FROM THE DRIVER DOOR LOCK CYLINDER


A1-A2:






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A6-A7:






Normal Operation
The SJB receives a lock/unlock signal from the driver door lock cylinder switch (part of the door latch) through circuit 1317 (DB/LG) and circuit 1316 (WH/VT) and shuts off the anti-theft alarm allowing entry. The driver door lock cylinder switch is grounded through circuit 570 (BK/WH).

Possible Causes
- circuit 570 (BK/WH) open
- circuit 1316 (WH/VT) open, short to ground or short to voltage
- circuit 1317 (DB/LG) open, short to ground or short to voltage
- driver door lock cylinder (part of the driver door latch)
- SJB