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 module(s) 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 Diagnostic System Check - Instrument Panel Cluster

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.
^ 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:

Gauges and Odometer
^ Engine Coolant Temperature Gage Inaccurate or Inoperative
^ Engine Oil Pressure Gage Inaccurate or Inoperative
^ Fuel Gage Inaccurate or 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 Inoperative in Antilock Brake System
^ Air Bag Indicator Circuit Malfunction in Restraint Systems
^ Brake Warning Indicator Always On in Hydraulic Brakes
^ Brake Warning Indicator Inoperative in Hydraulic Brakes
^ Charge Indicator Always On in Starting and Charging
^ Charge Indicator Inoperative in Starting and Charging
^ 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 and Horns
^ High Beam Indicator Inoperative in Lighting and Horns
^ Low Fuel Indicator Inoperative
^ Malfunction Indicator Lamp (MIL) Inoperative in Computers and Control Systems - 2.2L
^ Malfunction Indicator Lamp (MIL) Always On in Computers and Control Systems - 2.2L
^ Malfunction Indicator Lamp (MIL) Inoperative in Computers and Control Systems - 4.3L
^ Malfunction Indicator Lamp (MIL) Always On in Computers and Control Systems - 4.3L
^ PRNDL Display Park Indicator Inoperative
^ Rear Hatch/Gate Ajar Indicator Always On in Body Rear End
^ Rear Hatch/Gate Ajar Indicator Inoperative in Body Rear End
^ Service Indicator Always On in One Speed Automatic Transfer Case
^ Service Indicator Inoperative in One Speed Automatic Transfer Case
^ Service Indicator Always On in Two Speed Automatic Transfer Case
^ Service Indicator Inoperative in Two Speed Automatic Transfer Case
^ Turn Signal Lamps and/or Indicators Always On or Flashing in Lighting and Horns
^ Turn Signal Lamps and/or Indicators Inoperative in Lighting and Horns

Driver Information Center
^ Driver Information Center (DIC) Switch(es) Inoperative
^ Driver Information Center (DIC) Compass Display 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 and Horns
^ Interior Backlighting Inoperative in Lighting and Horns

Audible Warning
^ Chime Always On
^ Chime Inoperative