A Preliminary Information

IMPORTANT: The following steps must be completed before using the symptom tables.

1. Perform Diagnostic System Check - Instrument Cluster before using the Symptom Tables in order to verify that all of the following are true:
^ There are no DTCs set.
^ The control modules can communicate via the class 2 serial data link.
2. Review the system operation in order to familiarize yourself with the system functions. Refer to the following:
^ Instrument Panel Cluster (IPC) Description and Operation
^ Indicator/Warning Message Description and Operation
^ Audible Warnings Description and Operation

Visual/Physical Inspection
^ Inspect for aftermarket devices which could affect the operation of the Instrument Cluster or Audible Warning Systems. Refer to Checking Aftermarket Accessories in Diagrams.
^ Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
^ Inspect the reservoirs for the proper fluid level before beginning diagnosis.
^ Inspect the applicable reservoir for the proper fluid level related to the indicator or message.
^ Verify that the indicators work properly during the displays test.

Intermittent
Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent and Poor Connections in Diagrams.

Symptom List
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:

Gages and Odometer
^ Engine Coolant Temperature Gage Inaccurate or Inoperative
^ Engine Oil Pressure Gage Inaccurate or Inoperative
^ Fuel Gage Inaccurate or Inoperative
^ Instrument Cluster Inoperative
^ Odometer Trip/Reset Switch Inoperative
^ Speedometer and/or Odometer Inaccurate or Inoperative
^ Tachometer Inaccurate or Inoperative
^ Volt Gage Inaccurate or Inoperative

Indicators
^ ABS Indicator Always On in Antilock Brake System ABS Indicator Always On
^ ABS Indicator Inoperative in Antilock Brake System ABS Indicator Inoperative
^ Air Bag Indicator Circuit Malfunction in Restraint Systems Symptom Related Diagnostic Procedures
^ Brake Warning Indicator Always On in Hydraulic Brakes Brake Warning Indicator Always On
^ Brake Warning Indicator Inoperative in Hydraulic Brakes Symptom Related Diagnostic Procedures
^ Charge Indicator Always On in Starting and Charging Symptom Related Diagnostic Procedures
^ Fasten Safety Belt Indicator/Chime Always On in Seat Belts Fasten Safety Belt Indicator/Chime Always On
^ Fasten Safety Belt Indicator/Chime Inoperative in Seat Belts Fasten Safety Belt Indicator/Chime Inoperative
^ High Beam Indicator Always On in Lighting Systems High Beam Indicator Always On
^ High Beam Indicator Inoperative in Lighting Systems High Beam Indicator Inoperative
^ Low Fuel Indicator Inoperative
^ Malfunction Indicator Lamp (MIL) Inoperative in Computers and Controls Systems - 2.2 L Symptom Related Diagnostic Procedures
^ Malfunction Indicator Lamp (MIL) Always On in Computers and Controls Systems - 2.2 L Symptom Related Diagnostic Procedures
^ Malfunction Indicator Lamp (MIL) Inoperative in Computers and Controls Systems - 4.3 L Symptom Related Diagnostic Procedures
^ Malfunction Indicator Lamp (MIL) Always On in Computers and Controls Systems - 4.3 L Symptom Related Diagnostic Procedures
^ Rear Hatch/Gate Ajar Indicator Always On in Trunk/Liftgate.
^ Rear Hatch/Gate Ajar Indicator Inoperative in Trunk/Liftgate.
^ Security Indicator Always On or Flashing in Theft Deterrent Testing and Inspection
^ Security Indicator Inoperative in Theft Deterrent Testing and Inspection
^ Service Indicator Always On in Two Speed Automatic Transfer Case Symptom Related Diagnostic Procedures
^ Service Indicator Inoperative in Two Speed Automatic Transfer Case Symptom Related Diagnostic Procedures
^ Turn Signal Lamps and/or Indicators Always On or Flashing in Lighting Systems Turn Signal Lamps and/or Indicators Always On or Flashing
^ Turn Signal Lamps and/or Indicators Inoperative in Lighting Systems Turn Signal Lamps and/or Indicators Inoperative

Driver Information Center
^ Driver Information Center (DIC) Compass Inaccurate or C Displayed
^ Driver Information Center (DIC) Inoperative
^ Driver Information Center (DIC) Switch(es) Inoperative
^ Driver Information Center (DIC) Temperature Display Always Reads OC
^ Driver Information Center (DIC) Temperature Display Always Reads SC
^ Driver Information Center (DIC) Temperature Display Inaccurate or Inoperative

Instrument Cluster Dimming
^ Interior Backlighting Does Not Dim in Lighting Systems Interior Backlighting Does Not Dim
^ Interior Backlighting Inoperative in Lighting Systems Interior Backlighting Inoperative

Audible Warning
^ Chime Always On
^ Chime Inoperative