Test A: The Alarm System Does Not Disarm - From The Driver Door

PINPOINT TEST A: THE ALARM SYSTEM DOES NOT DISARM - FROM THE DRIVER DOOR

A1:

A1-A2:

A3:

A4-A7:

Normal Operation
On vehicles without the memory feature, the driver door disarm switch provides a ground signal to the smart junction box (SJB) through circuit CPL28 (VT/BN), the switch, and ground circuit GD126 (BK/WH) allowing entry without activating the alarm. The switch must operate before the mechanical lock unlocks. This is to prevent the anti-theft alarm from activating when it should have been disarmed.

On vehicles with the memory feature, the driver door disarm switch provides a ground signal to the driver door module (DDM) through circuit CPL28 (VT/BN), the switch, and ground circuit GD126 (BK/WH). The DDM sends a network message to the SJB, which allows entry without setting off the alarm. The switch must operate before the mechanical lock unlocks. This is to prevent the anti-theft alarm from activating when it should have been disarmed.

DTC B2116 - sets when there is a short to ground in the circuit between the door lock actuator and the SJB (vehicles without memory), or the DDM (vehicles with memory).

Possible Causes
- Circuit CPL28 (VT/BN) open, short to ground or voltage
- Circuit GD126 (BK/WH) open
- Driver door disarm switch (part of the driver door latch)
- DDM (vehicles with memory feature)
- SJB