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

Handles, Locks, Latches and Entry Systems





Pinpoint Tests

Pinpoint Test D: All Door Locks Are Inoperative From One Switch - Fusion/Milan

Refer to Wiring Diagram Set 110 (Fusion/Milan/MKZ, Fusion Hybrid/Milan Hybrid), 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 the lock and unlock input circuits. When the lock or unlock switch is pressed, the corresponding voltage signal is routed to ground, signalling the SJB to lock or unlock the doors. The door lock control switches have a dedicated ground circuit.

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 - FUSION/MILAN

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 DOOR LOCK CONTROL SWITCH


- 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 GD126 (BK/WH) or GD139 (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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