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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1853 (Instrument Cluster System And Panel Illumination) >> Diagnostic Tests >> Instrument Cluster and Panel Illumination >> Pinpoint Tests >> Pinpoint Test A: The Control Illumination Is Inoperative >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2007 Lincoln Mark LT and 2007 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.

With the parking lamps on, voltage is supplied to the dimmer switch (part of the headlamp switch) through circuit 14 (BN). The dimmer switch (part of the headlamp switch) then sends a variable pulse width modulated (PWM) voltage to the dimmable backlighting components through circuit 19 (LB/RD). Ground is supplied to the dimmer switch (part of the headlamp switch) through circuit 57 (BK).

Possible Causes

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