A Preliminary Information

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 table in order to verify that all of the following are true: Diagnostic System Check - Instrument Panel Cluster Diagnostic System Check - Head Up Display Diagnostic System Check - Audible Warnings
^ 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
^ 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 cluster, driver information display, or audible warnings. 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 Information Center (DIC) Temperature Display Always Reads SC
^ Driver Information Center (DIC) Temperature Display Always Reads OC
^ Outside Air Temperature Display Inaccurate or Inoperative
^ Driver Information 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
^ Odometer Trip/Reset Switch Inoperative
^ Speedometer and/or Odometer Inaccurate or Inoperative
^ Tachometer Inaccurate or Inoperative

Heads Up Display
^ Head Up Display (HUD) 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

Indicators
^ ABS Indicator Always On in ABS
^ ABS Indicator Inoperative in ABS
^ Air Bag Indicator Circuit Malfunction in Restraint Systems
^ For AWD DISABLE indicator refer to Differential Lock Indicator Inoperative in Rear Axle Controls
^ Brake Warning Indicator Always On in Hydraulic Brakes
^ Brake Warning Indicator Inoperative in Hydraulic Brakes
^ Change Engine Oil Indicator Always On
^ Change Engine Oil Indicator Inoperative
^ Charge Indicator Always On in Starting And Charging
^ Charge Indicator Inoperative in Starting And Charging
^ Door Ajar Indicator Always On in Doors
^ Door Ajar Indicator Inoperative in Doors
^ Engine Coolant Temperature Indicator Always On in Cooling System
^ Engine Oil Pressure Indicator Always On
^ High Beam Indicator Inoperative in Lighting and Horns
^ Low Engine Oil Level Indicator Always On
^ For LOW FUEL indicator refer to Fuel Gage Inaccurate or Inoperative
^ Low Traction Indicator Always On in ABS
^ Low Traction Indicator Inoperative in ABS
^ Low Washer Fluid Indicator Malfunction in Wipers/Washer Systems
^ Malfunction Indicator Lamp (MIL) Always On in Computers and Control Systems
^ Malfunction Indicator Lamp (MIL) Inoperative in Computers and Control Systems
^ Park Lamp Out Indicator Inoperative in Lighting and Horns
^ Rear Hatch/Gate Ajar Indicator Always On in Trunk/Liftgate
^ Seat Belt Indicator Circuit Malfunction in Seat Belts
^ Traction Off Indicator Always On in ABS
^ Traction Off Indicator Inoperative in ABS
^ Turn Signal Lamps and/or Indicators Inoperative in Lighting and Horns