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Home >> Mercury >> 2008 >> Milan Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 303 (Handles, Locks, Latches And Entry Systems) >> Diagnosis And Testing >> Locks, Latches and Entry Systems >> Pinpoint Tests >> Pinpoint Test E: The Doors Do Not Lock/Unlock Using The Remote Keyless Entry (RKE) Keypad >> Normal Operation

Normal Operation

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

The driver door module (DDM) monitors the RKE keypad through circuits 78 (LB/YE), 79 (LG/RD) and 121 (YE/BK). As each button is pressed a connection to ground through individual resistors occurs. The DDM receives the ground signals from the RKE keypad and operates the locks accordingly.

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