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Home >> Ford >> 2006 >> Focus ZX5 SE, Standard >> Repair and Diagnosis >> Electrical >> Gauges >> Instrument Cluster System And Panel Illumination >> Diagnosis And Testing >> Instrument Cluster and Panel Illumination >> Pinpoint Tests >> Pinpoint Test D: The Audio Unit Illumination Is Inoperative >> Normal Operation

Normal Operation

A variable pulse width modulated (PWM) voltage is supplied to the audio unit through circuit 29S-LK34 (OG/BK). The audio unit is grounded through circuit 31-MD34 (BK).

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