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Home >> Buick >> 1992 >> LeSabre Custom >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Description & Operation >> Powertrain Control Module (Pcm)
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Powertrain Control Module (Pcm)

The Powertrain Control Module (PCM) interprets position of cruise control servo, position of cruise control switches and vehicle speed. In response to this input, PCM signals opening and closing of cruise control servo vent and vacuum solenoid valves. PCM is located on right side of instrument panel, next to relay center.