Test B: A Single/More Than One Door Lock Is Inoperative

PINPOINT TEST B: A SINGLE/MORE THAN ONE DOOR LOCK IS INOPERATIVE

B1:

B1-B2:

B2-B4:

Normal Operation
When the smart junction box (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
- Circuit CPL11 (GY/BN) open
- Circuit CPL51 (BU/GN) open
- Circuit CPL52 (VT/GY) open
- Door lock actuator
- SJB