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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 829 (Instrument Cluster And Panel Illumination) >> Diagnosis And Testing >> Instrument Cluster and Panel Illumination >> Principles of Operation

Principles of Operation

WARNING: This page is about a different car, the 2005 Ford RV Cutaway, 2005 Ford Econoline, 2005 Ford E450 Super Duty, and 2005 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.

The instrument panel dimmer switch is an integral part of the headlamp switch assembly, and allows the brightness level of the backlights to be adjusted dependent on the customer preferences. When the headlamp switch is in the PARK or ON position the intensity of the backlighting can be adjusted by rotating the instrument panel dimmer switch right or left.

Battery voltage is supplied to the headlamp switch through the central junction box (CJB). From the instrument panel dimmer switch, variable voltage is sent back through the CJB to the controlled components with backlighting lamps.

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