A Symptom Diagnosis

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

1. Perform Diagnostic System Check - Instrument Cluster, Diagnostic System Check - Head Up Display, or Diagnostic System Check - Audible Warnings 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 serial data link. Diagnostic System Check - Instrument Panel Cluster Diagnostic System Check - Head Up Display Diagnostic System Check - Audible Warnings
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
^ Head Up Display (HUD) Description and Operation
^ Audible Warnings Description and Operation

Visual/Physical Inspection
Inspect for aftermarket devices which could affect the operation of the instrument panel cluster or audible warnings system. 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 for the proper fluid levels.

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
^ Boost Gage Inoperative
^ Engine Coolant Temperature Gage Inaccurate or Inoperative
^ Engine Oil Pressure Gage Inaccurate or Inoperative
^ Fuel Gage Inaccurate or 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
^ Change Engine Oil Indicator Always On
^ Charge Indicator Always On in Engine Electrical Charge Indicator Always On
^ Charge Indicator Inoperative in Engine Electrical Charge Indicator Inoperative
^ Door Ajar Indicator Malfunction in Doors Testing and Inspection
^ Engine Coolant Temperature Indicator Always On in Cooling System Symptom Related Diagnostic Procedures
^ High Beam Indicator Always On in Lighting Systems Testing and Inspection
^ High Beam Indicator Inoperative in Lighting Systems Testing and Inspection
^ Low Engine Oil Level Indicator Always
^ Low Tire Pressure Indicator Always On in Tire Pressure Monitoring Low Tire Pressure Indicator Always On
^ Low Tire Pressure Indicator Inoperative in Tire Pressure Monitoring Low Tire Pressure Indicator Inoperative
^ Low Traction Indicator Always On (W/NW9) in Antilock Brake System Low Traction Indicator Always On (W/NW9)
^ Low Traction Indicator Inoperative (W/NW9) in Antilock Brake System Low Traction Indicator Inoperative (W/NW9)
^ Low Washer Fluid Indicator Malfunction in Wipers/Washer Systems Testing and Inspection
^ Malfunction Indicator Lamp (MIL) Inoperative in Computers and Controls Systems Malfunction Indicator Lamp (MIL) Inoperative
^ Malfunction Indicator Lamp (MIL) Always On in Computers and Controls Systems Malfunction Indicator Lamp (MIL) Always On
^ MPH (Km/h) Indicator Inoperative
^ Seat Belt Indicator Circuit Malfunction in Seat Belts Symptom Related Diagnostic Procedures
^ Security Indicator Inoperative in Theft Deterrent Testing and Inspection
^ Traction Off Indicator Always On (W/NW9) in Antilock Brake System Traction Off Indicator Always On (W/NW9)
^ Traction Off Indicator Inoperative (W/NW9) in Antilock Brake System Traction Off Indicator Always On (W/NW9)
^ Trunk Ajar Indicator Always On in Trunk/Liftgate Symptom Related Diagnostic Procedures
^ Turn Signal Lamps and/or Indicators Always On or Flashing in Lighting Systems Testing and Inspection
^ Turn Signal Lamps and/or Indicators Inoperative in Lighting Systems Testing and Inspection

Driver Information Center (DIC)
^ Driver Information Center (DIC) Compass Inaccurate or CAL Displayed
^ Driver Information Center (DIC) Switch(es) Inoperative

Head Up Display (HUD)
^ Head Up Display (HUD) Always On
^ Head Up Display (HUD) Inoperative
^ Head Up Display (HUD) Speedometer Inoperative
^ Head Up Display (HUD) Turn Signal Indicator Inoperative - Left/Right
^ Head Up Display (HUD) Image Adjustment Inoperative
^ Head Up Display (HUD) Intensity Does Not Vary

Audible Warnings
^ Chime Always On
^ Chime Inoperative

"For a description of the RPO Code(s) shown in this article or any of the images therein, refer to the RPO Code List found at Vehicle/Application ID". RPO Codes