A Preliminary Information

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

1. Perform Diagnostic System Check - Instrument Cluster or Diagnostic System Check - Driver In formation Systems before using the symptom table in order to verify that all of the following are true:
^ There are no DTCs set.
^ The module(s) can communicate via the 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
^ Driver Information Center (DIC) Description and Operation
^ Audible Warnings Description and Operation

Visual/physical Inspection
^ Inspect for aftermarket devices which could affect the operation of the audible warnings, DIC, or PC. 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.
^ For any indicator or message relating to fluid level, perform a visual inspection of the fluid level before beginning diagnosis.
^ Verify that the indicators, message display works properly during the bulb check.

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:

Audible Warnings
^ Chime Always On
^ Chime Inoperative

Driver Information Center (DIC)
^ Driver In formation Center (DIC) Compass Inaccurate or C Displayed
^ Driver Information Center (DIC) Switch(es) Inoperative

Gages
^ Engine Coolant Temperature Gage Inaccurate or Inoperative
^ Fuel Gage Inaccurate or Inoperative
^ Speedometer and/or Odometer Inaccurate or Inoperative
^ Tachometer Inaccurate or Inoperative

Indicators
^ ABS Indicator Always On in Antilock Brake System Symptom Related Diagnostic Procedures
^ ABS Indicator Inoperative in Antilock Brake System Symptom Related Diagnostic Procedures
^ Air Bag Indicator Circuit Malfunction in Restraint Systems Testing and Inspection
^ Brake Warning Indicator Always On in Hydraulic Brakes Symptom Related Diagnostic Procedures
^ Brake Warning Indicator Inoperative in Hydraulic Brakes Symptom Related Diagnostic Procedures
^ Change Engine Oil Indicator Always On
^ Change Engine Oil Indicator Inoperative
^ Charge Indicator Always On in Starting and Charging Testing and Inspection
^ Charge Indicator Inoperative in Starting and Charging Testing and Inspection
^ Door Ajar Indicator Malfunction in Doors Testing and Inspection
^ Engine Coolant Temperature Indicator Always On in Cooling System Symptom Related Diagnostic Procedures
^ Engine Oil Pressure Indicator Always On
^ Fog Lamp Indicator Always On in Lighting and Horns Testing and Inspection
^ High Beam Indicator Always On in Lighting and Horns Testing and Inspection
^ High Beam Indicator Inoperative in Lighting and Horns Testing and Inspection
^ Low Engine Oil Level Indicator Always On
^ LOW FUEL indicator refer to Fuel Gage Inaccurate or Inoperative
^ Malfunction Indicator Lamp (MIL) Always On in Computers and Control Systems Testing and Inspection
^ Malfunction Indicator Lamp (MIL) Inoperative in Computers and Control Systems Testing and Inspection
^ Rear Hatch/Gate Ajar Indicator Inoperative in Trunk/Liftgate Testing and Inspection
^ Seat Belt Indicator Circuit Malfunction in Seat Belts Testing and Inspection
^ Security Indicator Inoperative in Antitheft and Alarm Systems Testing and Inspection
^ Traction Off Indicator Always On in Anti lock Brake System Symptom Related Diagnostic Procedures
^ Traction Off Indicator Inoperative in Antilock Brake System Symptom Related Diagnostic Procedures
^ Trailer Towing Indicator Always On (Pontiac Export) in Lighting and Horns Testing and Inspection
^ Trailer Towing Indicator Inoperative (Pontiac Export) in Lighting and Horns Testing and Inspection
^ Turn Signal Lamps and/or Indicators Always On or Flashing (Export) or Turn Signal Lamps and/or Indicators Always On or Flashing (Domestic) in Lighting and Horns Testing and Inspection
^ Turn Signal Lamps and/or Indicators Inoperative (Domestic) or Turn Signal Lamps and/or Indicators Inoperative (Export) in Lighting and Horns Testing and Inspection