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Home >> Jeep >> 1993 >> Grand Cherokee Base, 5.2 Y, AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation - 5.2L >> Computerized Engine Controls >> Input Devices >> Brake Switch
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Brake Switch

PCM uses this input to maintain idle speed at a scheduled RPM when brakes are applied. If PCM receives an input signal from brake switch when speed control system is on, PCM will turn speed control system off.

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