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

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

Normal Operation
The driver door module (DDM) receives lock or unlock requests from the door lock control switches on circuits 119 (PK/YE) and 120 (PK/LG). The door lock actuators contain a bi-directional motor that locks and unlocks the door depending on the position of the door lock control switch. When the switch is positioned to lock, voltage is supplied to circuit 117 (PK/BK) and ground is provided through circuit 163 (RD/OG) for the LH door and circuit 118 (PK/LG) for all other doors, locking the doors. When the switch is positioned to unlock, voltage is supplied to circuit 118 (PK/OG) and ground provided through circuit 117 (PK/BK), unlocking the driver door. Voltage is supplied to the actuators on circuit 163 (RD/OG) and ground on circuit 117 (PK/BK), unlocking the passenger doors.

This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Door lock actuator
- DDM

D1-D4:

D4-D6:

D6-D8:

D8-D10: