Symptoms - Displays and Gages
Symptoms - Displays and Gages
Important: The following steps must be completed before using the symptom tables.
1. Perform the Diagnostic System Check - Vehicle (Diagnostic System Check - Vehicle), 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)
* Driver Information Center (DIC) Description and Operation (Description and Operation)
* Indicator/Warning Message Description and Operation (Indicator/Warning Message Description and Operation)
* Instrument Cluster Description and Operation (Description and Operation)
Visual/Physical Inspection
* Inspect for aftermarket devices which could affect the operation of the Instrument Cluster or Audible Warning Systems. Refer to Checking Aftermarket Accessories (Checking Aftermarket Accessories).
* Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
* Inspect the applicable reservoir for the proper fluid level related to the indicator or message.
* Verify that the indicators work properly during the displays test.
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).
Symptom List
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:
Gages
* Engine Coolant Temperature Gage Inaccurate or Inoperative (Engine Coolant Temperature Gage Inaccurate or Inoperative)
* Engine Oil Pressure Gage Inaccurate or Inoperative (4.2L) ()Engine Oil Pressure Gage Inaccurate or Inoperative (4.8L, 5.3L, 6.0L, 6.2L, or 7.0L) (Engine Oil Pressure Gage Inaccurate or Inoperative (4.8L, 5.3L, 6.0L, 6.2L, or 7.0L))
* Fuel Gage Inaccurate or Inoperative (Fuel Gage Inaccurate or Inoperative)
* Speedometer and/or Odometer Inaccurate or Inoperative (4.2L Engine) ()Speedometer and/or Odometer Inaccurate or Inoperative (4.8L, 5.3L, 6.0L, 6.2L, 7.0L Engines) (Speedometer and/or Odometer Inaccurate or Inoperative (4.8L, 5.3L, 6.0L, 6.2L, 7.0L Engines))
* Tachometer Inaccurate or Inoperative (Tachometer Inaccurate or Inoperative)
* Volt Gage Inaccurate or Inoperative (Volt Gage Inaccurate or Inoperative)
Indicators
* Change Engine Oil Indicator Malfunction (Change Engine Oil Indicator Malfunction)
* Compass Malfunction (Mirror) (Compass Malfunction (Mirror))
* Door Ajar Indicator Malfunction (Door Ajar Indicator Malfunction)
* Low Fuel Indicator Malfunction (Low Fuel Indicator Malfunction)
* Outside Air Temperature Display Inaccurate or Inoperative (Outside Air Temperature Display Inaccurate or Inoperative)
* Liftgate/Liftgate Window Ajar Indicator Malfunction (Liftgate/Liftgate Window Ajar Indicator Malfunction)
* Service Indicator Always On (Service Indicator Always On) for the NVG 126-NP4 transfer case
* Service Indicator Inoperative (Service Indicator Inoperative) for the NVG 126-NP4 transfer case
* Tow/Haul Switch/Indicator Always On or Inoperative (Tow/Haul Switch/Indicator Always On or Inoperative)
* Brake Warning Indicator Malfunction (Brake Warning Indicator Malfunction)
* ABS Indicator Malfunction (ABS Indicator Malfunction)
* Traction Off Indicator Malfunction (Traction Off Indicator Malfunction)
* Low Tire Pressure Indicator Always On (Low Tire Pressure Indicator Always On)
* Low Tire Pressure Indicator Inoperative (Low Tire Pressure Indicator Inoperative)
* Charge Indicator Malfunction (Charge Indicator Malfunction)
* Cruise Control Indicator Malfunction (IPC Indicator Malfunction) (Cruise Control Indicator Malfunction (IPC Indicator Malfunction))
* Malfunction Indicator Lamp (MIL) Diagnosis (Testing and Inspection) for the 4.2L engine
* Malfunction Indicator Lamp (MIL) Diagnosis (Testing and Inspection) for the 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L engine
* Turn Signal Lamps and/or Indicators Malfunction (Turn Signal Lamps and/or Indicators Malfunction)
* Air Bag Indicator Circuit Malfunction (Air Bag Indicator Circuit Malfunction)
* Passenger Presence System Indicator Circuit Malfunction (Passenger Presence System Indicator Circuit Malfunction)
* Seat Belt Indicator Circuit Malfunction (Seat Belt Indicator Circuit Malfunction)
* Security Indicator Malfunction (Security Indicator Malfunction)
Driver Information Center
Compass Malfunction (Mirror) (Compass Malfunction (Mirror))
Instrument Cluster Dimming
Interior Backlighting Malfunction (Interior Backlighting Malfunction)
Odometer
Odometer Trip/Reset Switch Inoperative (Odometer Trip/Reset Switch Inoperative)
Audible Warning
Chime Malfunction (Chime Malfunction)