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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1025 (Instrument Cluster And Panel Illumination -- F150 Pickup) >> 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 Pickup. However, it is still accessible from the selected car via links, so may be relevant.

When the headlamp switch is placed in the ON position, voltage is supplied to the instrument panel dimmer switch. The instrument panel dimmer switch then sends a variable voltage to the dimmable backlighting lamps and the instrument cluster. The instrument cluster controls the ground circuit for the delay accessory relay field coil. The non-dimmable backlighting lamps receive voltage from circuit 54 (LG/YE) from the accessory delay relay located in the central junction box (CJB)

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