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Home >> Mercury >> 2008 >> Milan Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 395 (Handles, Locks, Latches And Entry Systems) >> Diagnosis And Testing >> Locks, Latches and Entry Systems >> Symptom Chart >> Pinpoint Test B: All Door Locks Are Inoperative >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

The door lock control switches are supplied a voltage signal from the smart junction box (SJB) through circuit 1088 (PK/WH). When the SJB receives a lock command, it supplies voltage to the door lock actuators through circuit 117 (PK/BK) while grounding circuits 118 (PK/OG) and 163 (RD/OG) to lock all the doors. When the SJB receives an unlock command, it supplies voltage to the door lock actuators through circuits 118 (PK/OG) and 163 (RD/OG) while grounding circuit 117 (PK/BK) to unlock all the doors. The driver door lock control switch and passenger door lock control switch circuits are spliced together within the wiring harness. The SJB is provided ground through circuit 57 (BK).

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