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Symptom: *DRIVERS DOOR KEY FAILS TO DISARM VTSS POSSIBLE CAUSES DRIVER DOOR MODULE RESET RESET DOOR MODULE OPEN GROUND CIRCUIT DRIVER CYLINDER LOCK SWITCH SENSE CIRCUIT SHORTED TO GROUND OPEN DRIVER CYLINDER LOCK SWITCH SENSE CIRCUIT DRIVER CYLINDER LOCK SWITCH TEST ACTION APPLICABILITY 1 With the DRBIII t in VTSS, Sensor Display, read the Driver Key Cylinder Sw voltage. Rotate the Key in the Door Key Cylinder from the normal position to the unlock All Yes → No → 2 Reset the DDM by removing and reinstalling the JB POWER Fuse #12 in the Power All Yes → Resetting the Driver Door Module has corrected the problem. No → Replace the Driver Door Module. 3 Disconnect the Driver Cylinder Lock Switch harness connector. All Yes → No → Repair the Driver Cylinder Lock Switch Ground circuit for an 4 Disconnect the Driver Door Module C1 harness connector. All Yes → Repair the Driver Door Cylinder Lock Switch Sense circuit for a No → 527 VEHICLE THEFT/SECURITY |