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Home >> Geo >> 1990 >> Tracker Base, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices >> Lock-Up Solenoid Relay (A/T)

Lock-Up Solenoid Relay (A/T)

When ECM energizes lock-up relay, relay energizes lock-up solenoid if internal transmission oil pressure switch is closed. When energized, the lock-up solenoid will provide a feedback signal to the ECM. This on/off signal is used by ECM with others inputs to control EGR solenoid operation.

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