For 1990-2009 cars only
Important: Review the system operation in order to familiarize yourself with the system functions.
Refer to the following:
Visual/Physical Inspection
| • | Inspect for aftermarket devices which could affect the operation of the Instrument Panel Cluster (IPC). Refer to Checking Aftermarket Accessories in Wiring Systems. |
| • | Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom. |
| • | Inspect for the proper fluid levels. |
Intermittent
Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.
Symptom List
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:
Gages and Odometer
IPC Indicators
| • | ABS Indicator Always On in Antilock Brake System |
| • | ABS Indicator Inoperative in Antilock Brake System |
| • | Air ABS Indicator Always On in Air Antilock Brake System |
| • | Air ABS Indicator Inoperative in Air Antilock Brake System |
| • | Air Suspension Dump Indicator Inoperative in Air Suspension |
| • | Apply Park Brake Indicator Always On in Park Brake |
| • | Apply Park Brake Indicator Inoperative in Park Brake |
| • | Auxiliary Brake Warning Indicator Always On in Hydraulic Brakes |
| • | Auxiliary Brake Warning Indicator Inoperative in Hydraulic Brakes |
| • | Charge Indicator Always On in Engine Electrical |
| • | Charge Indicator Inoperative in Engine Electrical |
| • | Daytime Running Lamps (DRL) Indicator Inoperative in Lighting Systems |
| • | Differential Lock Indicator Inoperative in Rear Axle Controls |
| • | High Beam Indicator Inoperative in Lighting Systems |
| • | Low Engine Coolant Indicator Always On in Engine Cooling |
| • | Park Brake Indicator Always On in Park Brake |
| • | Park Brake Indicator Inoperative in Park Brake |
| • | Primary Brake Warning Indicator Always On in Air Brakes |
| • | Primary Brake Warning Indicator Always On in Hydraulic Brakes |
| • | Primary Brake Warning Indicator Inoperative in Air Brakes |
| • | Primary Brake Warning Indicator Inoperative in Hydraulic Brakes |
| • | Service Park Brake Indicator Always On in Park Brake |
| • | Service Park Brake Indicator Inoperative in Park Brake |
| • | Trailer ABS Indicator Always On in Air Antilock Brake System |
| • | Trailer ABS Indicator Inoperative in Air Antilock Brake System |
| • | Turn Signal Lamps and/or Indicators Always On or Flashing in Lighting Systems |
| • | Turn Signal Lamps and/or Indicators Inoperative in Lighting Systems |
Instrument Cluster Dimming
| • | Interior Backlighting Does Not Dim in Lighting Systems |
| • | Interior Backlighting Inoperative in Lighting Systems |
