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 110, Power Door Locks 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 GD148 (BK/YE).

This pinpoint test is intended to diagnose the following:

- Wiring, terminals or connectors
- Door lock control switches



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


- 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) or GD148 (BK/YE) 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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