A Symptom Diagnosis

SYMPTOMS - INSTRUMENT PANEL, GAGES AND CONSOLE

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

1. Perform the Diagnostic System Check - Instrument Cluster 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 modules can communicate via the serial data link. Diagnostic System Check - Instrument Panel Cluster
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
- Night Vision 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.
- 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.

Symptom List
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:

Gages and Odometer
- 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
- 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 & Charging
- Charge Indicator Inoperative in Starting & Charging
- Cruise Control Indicator Always On in Cruise Control
- Cruise Control Indicator Inoperative in Cruise Control
- Door Ajar Indicator Malfunction in Doors
- Engine Coolant Temperature Indicator Always On in Cooling System
- Engine Oil Pressure Indicator Always On
- Fog Lamp Indicator Always On in Lighting Systems
- Fog Lamp Indicator Inoperative in Lighting Systems
- Headlamps Suggested Message On in Daylight Conditions
- High Beam Indicator Always On in Lighting Systems
- High Beam Indicator Inoperative in Lighting Systems
- Lights On Indicator Always On in Lighting Systems
- Lights On Indicator Inoperative in Lighting Systems
- Low Engine Coolant Indicator Always On in Cooling System
- Low Engine Oil Level Indicator Always On
- Low Washer Fluid Indicator Malfunction in Wipers/Washer Systems
- Malfunction Indicator Lamp (MIL) Always On in Computers and Control Systems - 4.6L
- Malfunction Indicator Lamp (MIL) Inoperative in Computers and Control Systems - 4.6L
- Seat Belt Indicator Circuit Malfunction in Seat Belts
- Security Indicator Inoperative in Theft Deterrent
- Traction Control Indicator Always On in Antilock Brake System
- Traction Control Indicator Inoperative in Antilock Brake System
- Traction Off Indicator Inoperative in Antilock Brake System
- Trunk Ajar Indicator Always On in Trunk/Liftgate
- Trunk Ajar Indicator Inoperative in Trunk/Liftgate
- Turn Signal Lamps and/or Indicators Always On or Flashing in Lighting Systems
- Turn Signal Lamps and/or Indicators Inoperative in Lighting Systems

Driver Information Center (DIC)
Driver Information Center (DIC) Switch(es) Inoperative

Night Vision
- Night Vision Display Always On
- Night Vision Display Inoperative
- Night Vision Display Does Not Dim
- Night Vision Display Height Adjustment Inoperative
- Night Vision Display Poor Video Image

Audible Warnings
- Chime Always On
- Chime Inoperative