A Preliminary Information

IMPORTANT:
1. Perform the A 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 serial data link.

2. Review the system operation in order to familiarize yourself with the system functions. Refer to the following:
^ Instrument Cluster Operation
^ Instrument Cluster Gauge Operation
^ Instrument Cluster Odometer Operation
^ Instrument Cluster Indicator Operation
^ Head Up Display Operation
^ Driver Information Center (DIC) or Message Center Warning Messages Description
^ Driver Information Center (DIC) or Message Center Status Messages Description
^ Audible Warnings Description
^ Electronic Compass Operation

Visual/Physical Inspection
^ Inspect for aftermarket devices which could affect the operation of the Instrument Cluster, Head Up Display (HUD), 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.
^ For any indicator or driver information center (DIC) message relating to fluid level, perform a visual inspection of the fluid level before beginning diagnosis.
^ Verify that the indicators work 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:

Gauges and PRNDL Display
The following is a list of the symptoms for the instrument cluster gauges, odometer, compass, and PRNDL display:
^ Engine Coolant Temperature Gauge Inaccurate or Inoperative
^ Engine Oil Pressure Gauge Inaccurate or Inoperative
^ Fuel Gauge Inaccurate or Inoperative
^ Speedometer and/or Odometer Inoperative
^ Tachometer Inoperative
^ PRNDL Display Inaccurate or Inoperative
^ Compass Inaccurate or CAL Displayed (IPC)
^ Compass Display Inoperative (IPC)

Indicators
The following is a list of the symptoms for the instrument cluster indicators or a reference to the related subsection:
^ ABS Indicator On or Inoperative. Refer to A Diagnostic System Check - Antilock Brake System.
^ AIR BAG Indicator On or Inoperative. Refer to A Diagnostic System Check - Restraint Systems.
^ Brake Warning Indicator On or Inoperative. Refer to A Diagnostic System Check in Hydraulic Brakes.
^ Oil Pressure Warning Indicator On or Inoperative. Refer to A Powertrain On Board Diagnostic (OBD) System Check in Computers and Control Systems - 3.8L.
^ SECURITY Indicator On or Inoperative. Refer to A Diagnostic System Check - Theft Deterrent in Antitheft and Alarm Systems.
^ SERVICE ENGINE SOON Indicator (MIL) On or Inoperative. Refer to A Powertrain On Board Diagnostic (OBD) System Check in Computers and Control Systems - 3.8L.
^ SERVICE VEHICLE SOON Indicator On. Refer to A Powertrain On Board Diagnostic (OBD) System Check in Computers and Control Systems - 3.8L.
^ TRACTION OFF Indicator On or Inoperative. Refer to A Diagnostic System Check - Antilock Brake System.
^ Battery Charge Indicator Always On in Starting and Charging.
^ Battery 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.
^ Turn Signal Indicator Always On - Left in Lighting and Horns.
^ Turn Signal Indicator Always On - Right in Lighting and Horns.
^ Turn Signal Indicators Inoperative in Lighting and Horns.

Driver Information Center (DIC)
The following is a list of the symptoms for the driver information center or a reference to the related subsection:
^ CHECK CHARGE SYSTEM Warning On. Refer to A Diagnostic System Check - Starting and Charging.
^ CHECK TIRE PRESSURES Warning On or Inoperative. Refer to A Diagnostic System Check - Tire Inflation Monitoring in Tire Pressure Monitoring.
^ ENGINE OIL LOW CHECk LEVEL Warning On. Refer to A Powertrain On Board Diagnostic (OBD) System Check in Computers and Control Systems 3.8L.
^ GAS CAP LOOSE CHECK CAP Warning On. Refer to A Powertrain On Board Diagnostic (OBD) System Check in Computers and Control Systems - 3.8L.
^ SERVICE STABILITY SYSTEM Warning On. Refer to A Diagnostic System Check - Antilock Brake System.
^ THEFT ATTEMPT DETECTED Warning On. Refer to A Diagnostic System Check - Theft Deterrent in Antitheft and Alarm Systems.
^ DOOR AJAR Message Always On in Door.
^ DOOR AJAR Message Inoperative in Door.
^ TRUNK AJAR Message Always On in Trunk/Liftgate.
^ TRUNK AJAR Message Inoperative in Trunk/Liftgate.
^ WINDSHIELD WASHER FLUID LOW Message Always On in Wipers/Washer Systems
^ WINDSHIELD WASHER FLUID LOW Message Inoperative in Wiper and Washer Systems.
^ Driver Information Center (DIC) Switch(es) Inoperative

Head-Up Display (HUD)
The following is a list of the symptoms for the head- up display:
^ Head Up Display (HUD) Inoperative
^ Head Up Display (HUD) Speedometer Inaccurate
^ Head Up Display (HUD) Turn Signal Indicator Inoperative - Left/Right
^ Head Up Display (HUD) Image Height Adjustment Inoperative
^ Head Up Display (HUD) Image Intensity Not Variable

Instrument Cluster Dimming
Instrument Cluster Illumination Lamps Do Not Dim

Audible Warnings
The following is a list of symptoms for the audible warnings:
^ ABS Chime Always On or Inoperative. Refer to A Diagnostic System Check - Antilock Brake System
^ Air Bag Chime Always On or Inoperative. Refer to A Diagnostic System Check - SIR in Restraints
^ Brake Fluid Chime Always On or Inoperative. Refer to A Diagnostic System Check in Hydraulic Brakes
^ Check Gauges Chime Always On. Refer to CHECK GAGES Indicator Always On
^ Check Gauges Chime Inoperative. Refer to CHECK GAGES Indicator Inoperative
^ Check Oil level Chime Always On or Inoperative. Refer to A Powertrain On Board Diagnostic (OBD) System Check in Computers and Control Systems 3.8L
^ Door Ajar Chime Always On. Refer to DOOR AJAR Message Always On in Door.
^ Door Ajar Chime Inoperative. Refer to DOOR AJAR Message Inoperative in Door.
^ Fasten Safety Belt Chime Always On. Refer to Fasten Safety Belt Indicator/Chime Always On in Seat Belts
^ Fasten Safety Belt Chime Inoperative. Refer to Fasten Safety Belt Indicator/Chime Inoperative in Seat Belts
^ Key-in-Ignition Chime Inoperative
^ Key-in-Ign Chime On w/LF Door Open, Key Not in Ign
^ Lights On Chime On with Ignition in Run. Refer to A Diagnostic System Check - Lighting Systems in Lighting and Horns.
^ Lights On Chime Inoperative. Refer to A Diagnostic System Check - Lighting Systems in Lighting and Horns.
^ Security Chime Always On or Inoperative. Refer to A Diagnostic System Check - Theft Deterrent in Antitheft and Alarm Systems.
^ Service Vehicle Soon Chime Always On or Inoperative. Refer to A Diagnostic System Check - Instrument Panel and Warning Indicators.
^ Traction Off Chime Always On or Inoperative Refer to A Diagnostic System Check - Antilock Brake System
^ Trunk Ajar Chime Always On. Refer to TRUNK AJAR Message Always On in Trunk/Lifgate.
^ Trunk Ajar Chime Inoperative. Refer to TRUNK AJAR Message Inoperative in Trunk/Liftgate.
^ Turn Signal Chime Always On or Inoperative. Refer to A Diagnostic System Check - Lighting Systems in Lighting and Horns.
^ Windshield Washer Fluid Low Chime Always On. Refer to WINDSHIELD WASHER FLUID LOW Message Always On in Wipers/Washer System
^ Windshield Washer Fluid Low Chime Inoperative. Refer to WINDSHIELD WASHER FLUID LOW Message Inoperative in Wiper and Washer Systems.