Pinpoint Test D: All Door Locks Are Inoperative From One Switch

Locks, Latches and Entry Systems






Pinpoint Tests


Pinpoint Test D: All Door Locks Are Inoperative From One Switch

Refer to Wiring Diagram Set 117, Remote Keyless Entry and Alarm for schematic and connector information. Diagrams By Number

Normal Operation

The Smart Junction Box (SJB) sends voltage signals to the door lock control switches through circuits CPL42 (GY/YE) and CPL43 (VT/GY) for the lock and unlock requests. When the lock or unlock switch is pressed, the voltage signal is routed to ground. Ground for the LH door lock control switch is provided through circuit GD133 (BK). Ground for the RH door lock control switch is provided through circuit GD116 (BK/VT). Ground for the rear door lock control switch is provided through circuit GD149 (BK/GY).

The SJB contains internal relays that are energized depending on the input received. When the SJB receives a lock or unlock request from the door lock control switch, the SJB energizes the appropriate relay(s) to lock or unlock the doors.

This pinpoint test is intended to diagnose the following:

- Wiring, terminals or connectors
- Door lock control switch



PINPOINT TEST D: ALL DOOR LOCKS ARE INOPERATIVE FROM ONE SWITCH

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D1 CHECK THE SUSPECT DOOR LOCK CONTROL SWITCH


- Disconnect: Suspect Door Lock Control Switch.
- Carry out the door lock control switch component test.

- Is the door lock control switch OK?

Yes
REPAIR circuit GD133 (BK), GD116 (BK/VT) or GD149 (BK/GY) for an open. TEST the system for normal operation.

No
INSTALL a new door lock control switch. REFER to Door Lock Control Switch - Front Door Door Lock Control Switch - Front Door or Door Lock Control Switch - Rear Door Door Lock Control Switch - Rear Door.
TEST the system for normal operation.

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