Test A: A Single/More Than One Door Lock Is Inoperative
PINPOINT TEST A: A SINGLE/MORE THAN ONE DOOR LOCK IS INOPERATIVENormal Operation
The door lock control switches provide a ground, circuit 57 (BK) for the vehicle security module (VSM) lock and unlock signal circuits 119 (PK/YE) and 120 (PK/LG). The door lock actuator output circuits 117 (PK/BK), 118 (PK/OG) and 163 (RD/OG) are at ground on circuit 57 (BK) through the VSM when the lock and unlock relays are not energized.
When the VSM receives a lock request through circuit 119 (PK/YE), the VSM processes the lock request and energizes the all lock relay, supplying voltage to circuit 117 (PK/BK) to lock the doors. Circuits 118 (PK/OG) and 163 (RD/OG) are at ground on circuit 57 (BK) through the VSM.
When the VSM receives an unlock request through circuit 120 (PK/LG), the VSM processes the unlock request and energizes the all unlock relay and driver unlock relay supplying voltage to circuits 118 (PK/OG) and 163 (RD/OG) to unlock the doors. Circuit 117 (PK/BK) is at ground on circuit 57 (BK) through the VSM.
Vehicles equipped with a sliding door have a memory lock feature. If the doors are locked with the sliding door ajar, all doors except the sliding door will lock. They will all relock including the sliding door once it is closed.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Door lock actuators
- Sliding door contact switch
- VSM
A1-A3:
A3-A5:
A5-A6:
A6-A8:
