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Home >> Mercury >> 2009 >> Mariner Base, 2.5 7, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 147 (Steering Column Switches) >> Diagnostic Tests >> Steering Column Switches >> Pinpoint Tests >> Pinpoint Test A: No Power in All Ignition Switch Positions >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2009 Mercury Grand Marquis and 2009 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.

Battery voltage is provided to Battery Junction Box (BJB) fuse 1 (30A) along circuit 2037 (RD). Fused battery voltage is then provided to the ignition switch from BJB fuse 1 (30A) along circuit 1050 (LG/VT). The ignition switch then provides power to the Central Junction Box (CJB), the Driver Door Module (DDM) and the Lighting Control Module (LCM) through several different circuits depending on the ignition switch state of operation. The ignition switch has 4 possible states of operation:

This pinpoint test is intended to diagnose the following:

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