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Home >> Ford >> 2000 >> Taurus LX, 3.0 2, AX4N >> Repair and Diagnosis >> External Pages >> Different car >> Section 1320 (Instrument Cluster And Panel Illumination) >> Diagnostic Tests >> Instrument Cluster and Panel Illumination >> Pinpoint Tests >> Pinpoint Test A: The Control Illumination Is Inoperative/Always On >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2008 Ford RV Cutaway, 2008 Ford Econoline, 2008 Ford E450 Super Duty, and 2008 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.

Battery voltage is supplied to the headlamp switch through circuit 195 (TN/WH). The instrument panel dimmer switch is an integral part of the headlamp switch. The instrument panel dimmer switch controls and sends a variable voltage supply to the central junction box (CJB) fuse 36 (5A) through circuit 1045 (DB/WH). Circuit 19 (LB/RD) then provides the variable voltage to the various illumination components.

This pinpoint test is intended to diagnose the following: 

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