A Symptom Diagnosis

SYMPTOMS

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

1. Perform the Diagnostic System Check - Vehicle in Vehicle DTC Information, 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 - Vehicle
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
- 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:

Gauges and Odometer
- 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

Indicators
- ABS Indicator Always On in Antilock Brake System
- ABS Indicator Inoperative in Antilock Brake System
- Air Bag Indicator Circuit Malfunction in Restraint Systems
- GBrake Warning Indicator Always On In Hydraulic Brakes
- Brake Warning Indicator Inoperative in Hydraulic Brakes
- Charge Indicator Always On in Starting and Charging
- Charge Indicator Inoperative in Starting and Charging
- Engine Oil Pressure Indicator Always On
- High Beam Indicator Inoperative in Lighting Systems
- Low Engine Coolant Indicator Always On in Cooling System
- Malfunction Indicator Lamp (MIL) Always On in Computers and Control Systems
- GMalfunction Indicator Lamp (MIL) Inoperative in Computers and Control Systems
- Seat Belt Indicator Circuit Malfunction in Seat Belts
- Security Indicator Always On or Flashing in Theft Deterrent
- Security Indicator Inoperativein Theft Deterrent
- Traction Off Indicator Always On in Antilock Brake System
- Traction Off Indicator Inoperativein Antilock Brake System
- Turn Signal Lamps and/or Indicators Inoperative in Lighting Systems

Audible Warnings
- Chime Always On
- Chime Inoperative