All Doors Fail To Lock/Unlock From Any Switch
- Using scan tool, read Diagnostic Trouble Codes (DTCs). If any power door lock DTCs are present, perform appropriate test. See DIAGNOSTIC TROUBLE CODE IDENTIFICATION table under SELF-DIAGNOSTIC SYSTEM. If no power door lock DTCs are present, go to next step
- Lower front door windows. Remove key from ignition. Close all doors. Lock and unlock doors from all switches and observe door locks. If all locks operate properly, system is functioning properly at this time. Fault may be intermittent. If all locks do not operate properly, identify fault and perform appropriate test under POWER DOOR LOCKS/RKE SYSTEM .