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:
* Audible Warnings Description and Operation Audible Warnings Description and Operation
* Indicator/Warning Message Description and Operation Indicator/Warning Message Description and Operation
* Instrument Panel Cluster (IPC) Description and Operation Instrument Panel Cluster (IPC) 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 and Poor Connections Testing for Intermittent 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 (8.1L Gas Engine L18) Engine Oil Pressure Gage Inaccurate or Inoperative (8.1L Gas Engine L18)Engine Oil Pressure Gage Inaccurate or Inoperative (7.2L Diesel Engine LG5) Engine Oil Pressure Gage Inaccurate or Inoperative (7.2L Diesel Engine LG5)
* 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 Speedometer and/or Odometer Inaccurate or Inoperative
* Tachometer Inaccurate or Inoperative (LG5 7.2L Diesel Engine) Tachometer Inaccurate or Inoperative (LG5 7.2L Diesel Engine)Tachometer Inaccurate or Inoperative (L18 8.1L Gasoline Engine) Tachometer Inaccurate or Inoperative (L18 8.1L Gasoline 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 Suspension Dump Indicator Inoperative Testing and Inspectionin Air Suspension
* Air ABS Indicator Always On in Air Antilock Brake System
* Air ABS Indicator Inoperative in Air Antilock Brake System
* Apply Park Brake Indicator Always On in Park Brake
* 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 Onin Engine Electrical
* Charge Indicator Inoperative Charge Indicator Inoperativein Engine Electrical
* Check Gages Indicator Always On (7.2L Diesel Engine LG5) Check Gages Indicator Always On (7.2L Diesel Engine LG5)Check Gages Indicator Always On (L18 8.1L Gasoline Engine) Check Gages Indicator Always On (L18 8.1L Gasoline Engine)
* Check Gages Indicator Inoperative (7.2L Diesel Engine LG5) Check Gages Indicator Inoperative (7.2L Diesel Engine LG5)Check Gages Indicator Inoperative (L18 8.1L Gasoline Engine) Check Gages Indicator Inoperative (L18 8.1L Gasoline Engine)
* Daytime Running Lamps (DRL) Indicator Inoperative Daytime Running Lamps (DRL) Indicator Inoperativein Lighting Systems
* Differential Lock Indicator Inoperative Testing and Inspectionin Rear Axle Controls
* High Beam Indicator Inoperative High Beam Indicator Inoperativein 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 Onin Engine Cooling
* Park Brake Indicator Always On (W/O J71) Park Brake Indicator Always On (Electro-Hydraulic Parking Brake) in Park Brake
* Park Brake Indicator Inoperative (Electro-Hydraulic Parking Brake) Park Brake Indicator Inoperative (W/O J71) in Park Brake
* Primary Brake Warning Indicator Always On in Hydraulic Brakes
* Primary Brake Warning Indicator Inoperative in Hydraulic Brakes
* Service Park Brake Indicator Always On in Park Brake
* Service Park Brake Indicator Inoperative in Park Brake
* Turn Signal Lamps and/or Indicators Inoperative Turn Signal Lamps and/or Indicators Inoperativein 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 Onin Seat Belts
* Fasten Safety Belt Indicator/Chime Inoperative Fasten Safety Belt Indicator/Chime Inoperativein Seat Belts
* Trailer ABS Indicator Always On in Air Antilock Brake System
* Trailer ABS Indicator Inoperative in Air Antilock Brake System
Instrument Cluster Dimming
* Interior Backlighting Does Not Dim Interior Backlighting Does Not Dimin Lighting Systems
* Interior Backlighting Inoperative Interior Backlighting Inoperativein Lighting Systems