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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1297 (Exterior Lighting) >> Diagnosis And Testing >> Autolamps >> Pinpoint Test K: The Autolamps Are Inoperative >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2005 Lincoln LS. However, it is still accessible from the selected car via links, so may be relevant.

The instrument cluster monitors the autolamps ON signal circuit to the headlamp switch through circuit 10-LE47 (GY/OG). When the headlamp switch is turned to the autolamps ON position, the signal is returned through circuit 9-LE29 (BN/GN). After the signal for the autolamps is received, the instrument cluster then monitors the photocell ambient light conditions by sending a signal to the photocell through circuit 8-LE42 (WH/BU). The photocell is grounded through circuit 31-LE42 (BK/OG). If a problem is detected with any of the voltage reference signals to the headlamp switch, the instrument cluster will default the headlamps and parking lamps ON.

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