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Home >> Buick >> 1996 >> Regal Base, 3.1 M >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Power Door Lock System >> Trouble Shooting

Trouble Shooting

Check circuit breaker and fuses. Check for mechanical binds in door lock system. Ensure all grounds are clean and tight. Ensure dome light is off during testing. Check for broken or partially broken wires that could cause system failure. If one door lock motor does not operate, but other door lock motors operate normally, check wiring to inoperative motor. If wiring is okay, check for poor wiring connection. If connection is okay, replace motor.