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

SINGLE/MORE THAN ONE DOOR LOCK IS INOPERATIVE

A1-A3:

A3-A5:

A5-A6:

A7-A8:

A9-A11:

A11-A12:

A13-A15:

A15-A16:

A16-A17:

Normal Operation
The door lock control switches supply a ground signal to the vehicle security module. When the vehicle security module receives ground through circuit 119 (PK/YE), it grounds circuit 163 (RD/OG) and circuit 118 (PK/OG), while energizing circuit 117 (PK/BK) to lock the doors. When the vehicle security module reads ground at circuit 120 (PK/LG), it grounds circuit 117 (PK/BK), while energizing circuit 163 (RD/OG) and circuit 118 (PK/OG), to unlock the doors. The driver door lock control switch, passenger door lock control switch and the liftgate door lock control switch circuits are spliced together within the wiring harness.

Possible Causes
- circuit 117 (PK/BK) short to ground or open
- circuit 118 (PK/OG) short to ground or open
- circuit 119 (PK/YE) open, short to voltage, or short to ground
- circuit 120 (PK/LG) open, short to voltage, or short to ground
- circuit 163 (RD/OG) short to ground or open
- circuit 456 (DG/OG) open
- circuit 1205 (BK) open
- door lock control switches
- liftgate door lock control switch
- door lock actuator
- vehicle security module
- liftgate latch remote control