Symptoms - Instrument Panel, Gages and Console
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 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 modules 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 Description and Operation Instrument Cluster Description and Operation
* Indicator/Warning Message Description and Operation Indicator/Warning Message Description and Operation
* Audible Warnings 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. Refer to Checking Aftermarket Accessories 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 for the proper fluid levels.
Intermittent
Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections 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:
Gages and Odometer
* Engine Coolant Temperature Gage Inaccurate or Inoperative Engine Coolant Temperature Gage Inaccurate or Inoperative
* Engine Oil Pressure Gage Inaccurate or Inoperative (L18 8.1L Gasoline Engine) Engine Oil Pressure Gage Inaccurate or Inoperative (L18 8.1L Gasoline Engine)Engine Oil Pressure Gage Inaccurate or Inoperative (LG5 7.2L Diesel Engine) Engine Oil Pressure Gage Inaccurate or Inoperative (LG5 7.2L Diesel Engine)
* Fuel Gage Inaccurate or Inoperative (Single Tank) Fuel Gage Inaccurate or Inoperative (Single Tank)Fuel Gage Inaccurate or Inoperative (Dual Tank) Fuel Gage Inaccurate or Inoperative (Dual Tank)
* Hourmeter Inaccurate or Inoperative Hourmeter Inaccurate or Inoperative
* Speedometer and/or Odometer Inaccurate or Inoperative (L18, Late LG5) Speedometer and/or Odometer Inaccurate or Inoperative (L18, Late LG5)Speedometer and/or Odometer Inaccurate or Inoperative (Early LG5) Speedometer and/or Odometer Inaccurate or Inoperative (Early LG5)
* Tachometer Inaccurate or Inoperative (L18 8.1L Gasoline Engine) Tachometer Inaccurate or Inoperative (L18 8.1L Gasoline Engine)Tachometer Inaccurate or Inoperative (LG5 7.2L Diesel Engine) Tachometer Inaccurate or Inoperative (LG5 7.2L Diesel Engine)
* Transmission Fluid Temperature Gage Inaccurate or Inoperative Transmission Fluid Temperature Gage Inaccurate or Inoperative
* Volt Gage Inaccurate or Inoperative Volt Gage Inaccurate or Inoperative
IPC Indicators
* ABS Indicator Always On in Antilock Brake System
* ABS Indicator Inoperative in Antilock Brake System
* Air ABS Indicator Always On in Air Antilock Brake System
* Air ABS Indicator Inoperative in Air Antilock Brake System
* Apply Park Brake Indicator Inoperative in Park Brake
* Auxiliary Brake Warning Indicator Always On in Hydraulic Brakes
* Auxiliary Brake Warning Indicator Inoperative in Hydraulic Brakes
* Charge Indicator Always On Charge Indicator Always On in Engine Electrical
* Charge Indicator Inoperative Charge Indicator Inoperative in Engine Electrical
* Check Gages Indicator Always On (L18 8.1L Gasoline Engine) Check Gages Indicator Always On (L18 8.1L Gasoline Engine)Check Gages Indicator Always On (LG5 7.2L Diesel Engine) Check Gages Indicator Always On (LG5 7.2L Diesel Engine)
* Check Gages Indicator Inoperative (L18 8.1L Gasoline Engine) Check Gages Indicator Inoperative (L18 8.1L Gasoline Engine)Check Gages Indicator Inoperative (LG5 7.2L Diesel Engine) Check Gages Indicator Inoperative (LG5 7.2L Diesel Engine)
* Daytime Running Lamps (DRL) Indicator Inoperative Daytime Running Lamps (DRL) Indicator Inoperative in Lighting Systems
* Differential Lock Indicator Inoperative Testing and Inspection in Rear Axle Controls
* High Beam Indicator Inoperative High Beam Indicator Inoperative in Lighting Systems
* Low Air Indicator Always On in Air Brakes
* Low Air Indicator Inoperative in Air Brakes
* Low Engine Coolant Indicator Always On Low Engine Coolant Indicator Always On in Engine Cooling
* Park Brake Indicator Inoperative (W/O J71) Park Brake Indicator Inoperative (Electro-Hydraulic Parking Brake) in Park Brake
* Park Brake Indicator Always On (W/O J71) Park Brake Indicator Always On (Electro-Hydraulic Parking Brake) in Park Brake
* Primary Brake Warning Indicator Always On in Hydraulic Brakes
* Primary Brake Warning Indicator Inoperative in Hydraulic Brakes
* Service Park Brake Indicator Inoperative in Park Brake
* Turn Signal Lamps and/or Indicators Inoperative Turn Signal Lamps and/or Indicators Inoperative in Lighting Systems
DIC Indicators
* Change Engine Oil Indicator Always On Change Engine Oil Indicator Always On
* Change Engine Oil Indicator Inoperative Change Engine Oil Indicator Inoperative
* Fasten Safety Belt Indicator/Chime Always On Fasten Safety Belt Indicator/Chime Always On in Seat Belts
* Fasten Safety Belt Indicator/Chime Inoperative Fasten Safety Belt Indicator/Chime Inoperative in Seat Belts
Instrument Cluster Dimming
* Interior Backlighting Does Not Dim Interior Backlighting Does Not Dim in Lighting Systems
* Interior Backlighting Inoperative Interior Backlighting Inoperative in Lighting Systems