For 1990-2009 cars only
Important: The following steps must be completed before using the symptom tables.
- Perform the Diagnostic System Check - Instrument Cluster before using the Symptom Tables in order to verify that all of the following are true:
- Review the system operation in order to familiarize yourself with the system functions. Refer to the following:
| • | There are no DTCs set. |
| • | The control module(s) can communicate via the serial data link. |
Visual/Physical Inspection
| • | Inspect for aftermarket devices which could affect the operation of the instrument cluster. 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. |
| • | For any indicator or driver information center (DIC) message relating to fluid level, perform a visual inspection of the fluid level before beginning diagnosis. |
| • | Verify that the indicators work properly during the bulb check. |
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:
Gauges and PRNDL Display
The following is a list of the symptoms for the instrument cluster (IPC) gauges and PRNDL display:
Indicators
The following is a list of the symptoms for the instrument cluster (IPC) indicators or a reference to the related subsection:
| • | ABS Indicator Always On in Antilock Brake System. |
| • | ABS Indicator Inoperative in Antilock Brake System. |
| • | Charge Indicator Always On in Engine Electrical |
| • | Charge Indicator Inoperative in Engine Electrical |
| • | Brake Warning Indicator, Message, and Chime Always On in Hydraulic Brakes |
| • | Brake Warning Indicator and Chime Inoperative in Hydraulic Brakes |
| • | Brake Warning Indicator Always On in Hydraulic Brakes |
| • | Brake Warning Indicator Inoperative in Hydraulic Brakes |
| • | Engine Coolant Temperature Indicator Always On in Engine Cooling |
| • | Engine Coolant Temperature Indicator Inoperative in Engine Cooling |
| • | Fasten Safety Belt Indicator/Chime Always On in Seat Belts |
| • | Fasten Safety Belt Indicator/Chime Inoperative in Seat Belts |
| • | High Beam Indicator Always On in Lighting Systems |
| • | High Beam Indicator Inoperative in Lighting Systems |
| • | Malfunction Indicator Lamp (MIL) (SERVICE ENGINE SOON) Indicator Always On or Inoperative. Refer to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls - 4.6L. |
| • | SECURITY Indicator Always On or Inoperative. Refer to Diagnostic System Check - Theft Deterrent in Theft Deterrent |
| • | TRACTION CONTROL Indicator Always On in Antilock Brake System |
| • | TRACTION CONTROL Indicator Inoperative in Antilock Brake System |
| • | Turn Signal Indicator Always On - Left Side in Lighting Systems |
| • | Turn Signal Indicator Always On - Right Side in Lighting Systems |
| • | Turn Signal Indicators Inoperative - Left Side in Lighting Systems |
| • | Turn Signal Indicators Inoperative - Right Side in Lighting Systems |
Driver Information Center (DIC)
The following is a list of the symptoms for the driver information center (DIC) or a reference to the related subsection:
| • | BATTERY NOT CHARGING Message Always On or Inoperative. Refer to Diagnostic System Check - Engine Electrical in Engine Electrical. |
| • | BATTERY VOLTS HIGH Message Always On or Inoperative. Refer to Diagnostic System Check - Engine Electrical in Engine Electrical. |
| • | BATTERY VOLTS LOW Message Always On or Inoperative. Refer to Diagnostic System Check - Engine Electrical in Engine Electrical. |
| • | CHANGE ENGINE OIL Message Always On or Inoperative. Refer to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls - 4.6L. |
| • | CHANGE TRANS FLUID Message Always On or Inoperative. Refer to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls - 4.6L. |
| • | CHECK BRAKE FLUID LEVEL Message Always On. Refer to Brake Warning Indicator, Message, and Chime Always On in Hydraulic Brakes. |
| • | CHECK BRAKE FLUID LEVEL Message Inoperative. Refer to Brake Warning Indicator and Chime Inoperative in Hydraulic Brakes. |
| • | CHECK COOLANT LEVEL Message Always On or Inoperative. Refer to Diagnostic System Check in Engine Cooling. |
| • | CHECK FUEL GAGE Message Always On or Inoperative. Refer to Fuel Gage Inaccurate or Inoperative . |
| • | CHECK GAS CAP Message Always On or Inoperative. Refer to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls - 4.6L. |
| • | CHECK OIL LEVEL Message Always On. Refer to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls - 4.6L. |
| • | CHECK WASHER FLUID Message Always On or Inoperative. Refer to Wiper/Washer System Check in Wiper/Washer System. |
| • | CRUISE ENGAGED Message Always On or Inoperative. Refer to Diagnostic System Check - Cruise Control in Cruise Control. |
| • | DOOR AJAR Message Always On or Inoperative. Refer to Diagnostic System Check - Power Door Systems in Doors. |
| • | DRIVER DOOR AJAR Message Always On or Inoperative. Refer to Diagnostic System Check - Power Door Systems in Doors. |
| • | ENGINE COOLANT HOT/IDLE ENGINE Message Always On or Inoperative. Refer to Diagnostic System Check in Engine Cooling. |
| • | ENGINE HOT - AC OFF Message Always On or Inoperative. Refer to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls - 4.6L. |
| • | ENGINE MISFIRE Message Always On or Inoperative. Refer to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls - 4.6L. |
| • | ENGINE OVERHEATED/STOP ENGINE Message Always On or Inoperative. Refer to Diagnostic System Check in Engine Cooling. |
| • | FUEL LEVEL LOW Message Always On or Inoperative. Refer to Fuel Gage Inaccurate or Inoperative . |
| • | HEADLAMPS SUGGESTED Message Always On or Inoperative. Refer to LIGHTS ON Indicator Inoperative in Lighting Systems. |
| • | ICE POSSIBLE Message Always On or Inoperative. Refer to Diagnostic System Check in HVAC Systems - Automatic. |
| • | LOW REFRIG A/C OFF Message Always On or Inoperative. Refer to Diagnostic System Check in HVAC Systems - Automatic. |
| • | OIL PRESSURE LOW/STOP ENGINE Message Always On. |
| • | OIL PRESSURE LOW/STOP ENGINE Message Inoperative. |
| • | PROGRAM PASS KEY Message Always On or Inoperative. Refer to Diagnostic System Check - Theft Deterrent in Theft Deterrent. |
| • | PHONE NOT PRESENT Message Always On or Inoperative. Refer to Diagnostic System Check - Cellular Telephone in Cellular Communications. |
| • | REMOVE KEY Message Always On or Inoperative. Refer to Diagnostic System Check - Theft Deterrent in Theft Deterrent. |
| • | SERVICE AC SYSTEM Message Always On or Inoperative. Refer to Diagnostic System Check in HVAC Systems - Automatic. |
| • | SERVICE AIR BAG Message Always On or Inoperative. Refer to Diagnostic System Check - SIR in SIR. |
| • | SERVICE BRAKE FLUID SWITCH Message Always On or Inoperative. Refer to Brake Warning Indicator, Message, and Chime Always On in Hydraulic Brakes. |
| • | SERVICE CHARGING SYS Message Always On or Inoperative. Refer to Diagnostic System Check - Engine Electrical in Engine Electrical. |
| • | SERVICE ELECTRICAL SYS Message Always On or Inoperative. Refer to Diagnostic System Check - Engine Electrical in Engine Electrical. |
| • | SERVICE FUEL SYSTEM Message Always On or Inoperative. Refer to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls - 4.6L. |
| • | SERVICE IDLE CONTROL Message Always On or Inoperative. Refer to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls - 4.6L. |
| • | SERVICE RIDE SYS Message Always On or Inoperative. Refer to Diagnostic System Check in Road Sensing Suspension - RSS. |
| • | SERVICE STEERING SYS Message Always On or Inoperative. Refer to Diagnostic System Check - Variable Effort Steering in Variable Effort Steering. |
| • | SERVICE TRANSMISSION Message Always On or Inoperative. Refer to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls - 4.6L. |
| • | SERVICE VEHICLE SOON Message Always On or Inoperative. Refer to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls - 4.6L. |
| • | STABILITY ENGAGED Message Always On or Inoperative. Refer to Diagnostic System Check in Road Sensing Suspension (RSS). |
| • | STARTING DISABLED REMOVE KEY Message Always On or Inoperative. Refer to Diagnostic System Check - Theft Deterrent in Theft Deterrent. |
| • | THEFT SYSTEM PROBLEM CAR MAY NOT RESTART Message Always On or Inoperative. Refer to Diagnostic System Check - Theft Deterrent in Theft Deterrent. |
| • | TOP SPEED FUEL CUT-OFF Message Always On or Inoperative. Refer to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls - 4.6L. |
| • | TRACTION ENGAGED Message Always On or Inoperative. Refer to Diagnostic System Check - ABS in Antilock Brake System. |
| • | TRACTION OFF Message Always On in Antilock Brake System |
| • | TRACTION OFF Message Inoperative in Antilock Brake System |
| • | TRACTION READY Message Always On or Inoperative. Refer to Diagnostic System Check - ABS in Antilock Brake System. |
| • | TRACTION SUSPENDED Message Always On or Inoperative. Refer to Diagnostic System Check - ABS in Antilock Brake System. |
| • | TRANS HOT IDLE ENGINE Message Always On or Inoperative. Refer to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls - 4.6L. |
| • | TRUNK OPEN Message Always On or Inoperative. Refer to Rear Compartment Lid Release System Check in Body Rear End |
| • | TURN SIGNAL ON Message Always On or Inoperative. Refer to Diagnostic System Check - Lighting Systems in Lighting Systems. |
