Self-Diagnostic System: Notes

Vehicle is equipped with a self-diagnostic system which detects system abnormalities. When a malfunction occurs, a Diagnostic Trouble Code (DTC) is recorded as current and/or history (intermittent) failures. Current DTCs indicate control module has detected a fault which is currently present. A history DTC indicates that module has previously detected a malfunction that is not currently present. Begin self-diagnostic system tests by diagnosing BCM system first. See BODY CONTROL MODULE DIAGNOSTIC SYSTEM CHECK  .

Begin diagnosis of control module systems by performing appropriate diagnostic system check for system in which customer concern is apparent. See DIAGNOSTIC SYSTEM CHECK  table. Appropriate diagnostic system check will direct technician to correct procedure for diagnosing system and where procedure is located.

System	Perform Test
Air Bag	AIR BAG DIAGNOSTIC SYSTEM CHECK
Anti-Lock Brake	ANTI-LOCK BRAKE DIAGNOSTIC SYSTEM CHECK
Body Control Module	BODY CONTROL MODULE DIAGNOSTIC SYSTEM CHECK
Cell Phone	CELLULAR COMMUNICATION DIAGNOSTIC SYSTEM CHECK
Cruise Control	CRUISE CONTROL DIAGNOSTIC SYSTEM CHECK
Door Ajar	DOORS DIAGNOSTIC SYSTEM CHECK
Driver Information Center	DRIVER INFORMATION CENTER DIAGNOSTIC SYSTEM CHECK
Horns	HORNS DIAGNOSTIC SYSTEM CHECK
Instrument Panel Cluster	INSTRUMENT PANEL CLUSTER DIAGNOSTIC SYSTEM CHECK
Lighting Systems	LIGHTING DIAGNOSTIC SYSTEM CHECK
Power Seats	POWER SEAT DIAGNOSTIC SYSTEM CHECK
Radio	RADIO DIAGNOSTIC SYSTEM CHECK
Remote Keyless Entry System	REMOTE KEYLESS ENTRY DIAGNOSTIC SYSTEM CHECK
Retained Accessory Power	RETAINED ACCESSORY POWER DIAGNOSTIC SYSTEM CHECK
Seat Belts	SEAT BELT DIAGNOSTIC SYSTEM CHECK
Theft Deterrent	THEFT DETERRENT DIAGNOSTIC SYSTEM CHECK