GM Service Manual Online
For 1990-2009 cars only

Important: 

  1. Perform Diagnostic System Check - Instrument Cluster before using the Symptom Tables in order to verify that all of the following are true:
  2.    • There are no DTCs set.
       • The control module(s) can communicate via the serial data link.
  3. Review the system operation in order to familiarize yourself with the system functions. Refer to Instrument Cluster Circuit Description .

Visual/Physical Inspection

    • Inspect for aftermarket devices which could affect the operation of the Instrument Cluster System. Refer to Checking Aftermarket Accessories in Wiring Systems.
    • Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
    • Inspect the appropriate reservoirs for the proper fluid level.

Intermittent

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.

Symptom List

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

Gauges, Odometer, and PRNDL Display

The following is a list of the symptoms for the instrument cluster gauges and PRNDL display:

    •  Instrument Cluster Inoperative
    •  Engine Coolant Temperature Gage Inaccurate or Inoperative
    •  Fuel Gage Inaccurate or Inoperative
    •  Instrument Panel Lamps Inoperative in Lighting Systems
    •  Odometer Does Not Switch Between Trip and Season
    •  Odometer Does Not Switch Between Trip and Season
    •  Speedometer and/or Odometer Inoperative
    •  Tachometer Inaccurate
    •  PRNDL Display Inaccurate or Inoperative

Indicators

The following is a list of the symptoms for the instrument cluster indicators or a reference to the related subsection:

    • ABS Indicator Always or Inoperative. Refer to Diagnostic System Check - ABS in Antilock Brake System.
    • Air Bag Indicator Always On or Inoperative. Refer to Diagnostic System Check - SIR in SIR.
    •  Charge Indicator Always On in Engine Electrical
    •  Charge Indicator Inoperative in Engine Electrical
    •  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
    •  CRUISE Indicator Always On in Cruise Control
    •  CRUISE Indicator Inoperative in Cruise Control
    •  Engine Oil Pressure Indicator Always On
    •  Engine Oil Pressure Indicator Inoperative
    •  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 Systems
    •  High Beam Indicator Inoperative in Lighting Systems
    •  Low Fuel Indicator Always On
    •  Low Fuel Indicator Inoperative
    •  LOW OIL Indicator Always On
    •  LOW OIL Indicator Inoperative
    •  Low Tire Pressure Indicator Always On in Tire Pressure Monitoring
    •  Low Tire Pressure Indicator Inoperative in Tire Pressure Monitoring
    •  Low Engine Coolant Indicator Always On in Engine Cooling
    •  Low Engine Coolant Indicator Inoperative in Engine Cooling
    •  Low Fluid Level Indicator Always On
    •  Low Fluid Level Indicator Inoperative
    • LOW TRACTION Indicator Always On or Inoperative. Refer to Diagnostic System Check - ABS in Antilock Brake System.
    • Malfunction Indicator Lamp (MIL) (Service Engine Soon Indicator) Always On or Inoperative. Refer to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls - 2.4L or Powertrain On Board Diagnostic (OBD) System Check in Engine Controls - 3.4L.
    •  SECURITY Indicator Inoperative
    •  SHIFT Indicator Always On
    •  SHIFT Indicator Inoperative
    • TRACTION OFF Indicator Always On or Inoperative. Refer to Diagnostic System Check - ABS in Antilock Brake System.
    •  Turn Signal Indicators Inoperative - Left Side in Lighting Systems
    •  Turn Signal Indicators Inoperative - Right Side in Lighting Systems