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 Diagrams 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 CPK19 (BU/GN) and CPK23 (YE/VT) for the lock and unlock requests, respectively. 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 GD156 (BK/VT).

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

NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

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D1 CHECK THE SUSPECT DOOR LOCK CONTROL SWITCH FOR CORRECT OPERATION


- Disconnect: Inoperative 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) or circuit GD156 (BK/VT) for an open. TEST the system for normal operation.

No
INSTALL a new door lock control switch. REFER to Door Lock Control Switch Service and Repair. TEST the system for normal operation.

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