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Home >> Chevrolet >> 2000 >> C3500 HD 6.5 F, Standard >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Power Door Lock System - Old Style >> Trouble Shooting >> System Operation Check

System Operation Check

  1. Close all doors. Press LOCK and UNLOCK buttons on both front doors and rear door (if equipped). All doors should lock and unlock. If system does not perform as described, see SYMPTOM TESTS  .
  2. Open driver door. Open cargo doors. Press any LOCK button. Close cargo doors. Close driver door. All doors should lock approximately 5 seconds after last door is closed. If system does not perform as described, see AUTOMATIC DOOR LOCKS INOPERATIVE, POWER LOCKS OPERATE under SYMPTOM TESTS.
  3. With luxury system, open driver door. Insert ignition key fully into ignition lock cylinder. Press any door switch LOCK button. Doors should not lock. If system does not perform as described, see POWER DOOR LOCKS INOPERATIVE - LOCK-OUT FEATURE (LUXURY) under SYMPTOM TESTS.