Test A: All Door Locks Are Inoperative

PINPOINT TEST A: ALL DOOR LOCKS ARE INOPERATIVE

A1-A4:

A4-A5:

Normal Operation
The smart junction box (SJB) fuse 17 (20A) provides voltage for the power lock/unlock system. Ground for the power lock/unlock system is provided to the SJB through circuit GD138 (BK/WH). The SJB contains internal relays that are energized depending on input received.

When the SJB receives a lock request from the door lock control switch, the SJB provides power to the door lock actuators through circuit CPL11 (GY/BN). Ground for the LH front door actuator is provided through circuit CPL51 (BU/GN) and ground for the remaining door lock actuators is provided through circuit CPL52 (VT/GY). When the SJB receives an unlock request, power and ground are reversed on the previously listed circuits.

Possible Causes
- Fuse
- Circuit GD138 (BK/WH) open
- Circuit CPL11 (GY/BN) open
- SJB