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Home >> Ford >> 1992 >> Thunderbird Base, 5.0 T >> Repair and Diagnosis (Single Page) >> Suspension >> Electronic Suspension >> Automatic Ride Control >> Circuit Diagnostic Tests >> Module Input Test D21 >> Ride Control Switch Power Feed
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Ride Control Switch Power Feed

Turn ignition switch to RUN position. Using DVOM, check voltage between chassis ground and Purple/Orange wire (circuit No. 298) of ride control switch harness connector. If voltage is zero volts, repair open or short in Purple/Orange wire. If voltage is 12 volts, replace ride control switch.