All Doors Failing To Lock From One Switch
NOTE:
After making any repairs, perform BODY CONTROL MODULES SYSTEM VERIFICATION TEST
under VERIFICATION TESTS.
Lower driver window. Operate door locks from malfunctioning power door lock switch and door cylinder lock switch (if equipped) to lock position. If door does not lock, replace appropriate switch. If door locks, fault may be intermittent. Check related wiring and connectors for poor connections or damage to wiring harness. See WIRING DIAGRAMS . Repair any problems found as necessary. If no problems are found, check if any Technical Service Bulletins (TSBs) apply to vehicle. If no TSBs apply, test is complete.