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Home >> Mercury >> 2007 >> Montego Premier, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Cluster System And Panel Illumination >> Diagnostic Tests >> Instrument Cluster and Panel Illumination >> Pinpoint Tests >> Pinpoint Test C: The Steering Wheel Control Illumination Is Inoperative >> Normal Operation

Normal Operation

The smart junction box (SJB) sends a pulse-width modulated (PWM) voltage to the steering wheel controls through circuit 1417 (LG/RD) to the clockspring. The voltage passes through the clockspring to the steering wheel control harness and on to the steering wheel controls. Ground for the steering wheel controls are supplied through circuit 1205 (BK).

Possible Causes

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