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

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

A1-A4:

A4-A5:

A6-A7:

A7-A8:

A9-A10:

A11-A14:

A14-A15:

A16-A19:

Normal Operation
Voltage is supplied to the smart junction box (SJB) through circuit SBB03 (BU/RD). The door lock control switches are grounded through circuit GD133 (BK) (LH), circuit GB151 (BK/GN) (RH) and circuit GD143 (BK/VT) (liftgate). The power door lock switches are hardwired to the SJB through lock circuit CPL42 (GY/YE) and unlock circuit CPL43 (VT/GY). The door lock actuators are hardwired to the SJB through circuits CPL51 (BU/GN) and CPL52 (VT/GY). When the SJB receives a ground signal on circuit CPL42 (GY/YE), the SJB grounds circuits CPL52 (VT/GY) and CPL51 (BU/GN), while supplying voltage to circuit CPL11 (GY/BN) to lock the doors. When the SJB receives a ground signal on circuit CPL43 (VT/GY), it grounds circuit CPL11 (GY/BN), while supplying voltage to circuits CPL52 (VT/GY) and CPL51 (BU/GN), to unlock the doors.

Possible Causes
- fuse(s)
- circuit CPL11 (GY/BN) open or short to ground
- circuit CPL42 (GY/YE) open, short to voltage, or short to ground
- circuit CPL43 (VT/GY) open, short to voltage, or short to ground
- circuit CPL51 (BU/GN) open or short to ground
- circuit CPL52 (VT/GY) open or short to ground
- circuit GD133 (BK) open
- circuit GD143 (BK/VT) open
- circuit SBB03 (BU/RD) open
- door lock control switches
- liftgate door lock control switch
- door lock actuator
- liftgate latch actuator
- SJB