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Home >> GMC >> 1968 >> C25/C2500 Pickup 5.3L Eng, Not Available Trans, _NA_ >> Repair and Diagnosis >> Engine Performance >> Theory and Operation >> Computer Command Control >> Maintenance & Testing >> Reversing Relay

Reversing Relay

Make sure all wires are connected to reversing relay and to transmission switch. A loose wire could cause solenoid to remain energized. Turn ignition on and remove purple wire from reversing relay, solenoid should de-energize. If solenoid de-energizes, reversing relay is faulty.