- Symptoms - Displays and Gages

Symptoms - Displays and Gages

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

1. Before using the symptom diagnostic tables, perform the Diagnostic System Check - Vehicle (Initial Inspection and Diagnostic Overview) in order to verify the following conditions:

* There are not any DTCs set.
* The control modules can communicate via the serial data link.

2. Review the system operation in order to understand the system functions. Refer to the following description and operations:

* Audible Warnings Description and Operation (Audible Warnings Description and Operation)
* Instrument Cluster Description and Operation (Description and Operation)
* Indicator/Warning Message Description and Operation (Indicator/Warning Message Description and Operation)
* Driver Information Center (DIC) Description and Operation (Description and Operation)

Visual/Physical Inspection

* Inspect for aftermarket devices which can affect the operation of the instrument panel cluster or the audible warnings system. Refer to Checking Aftermarket Accessories (Component Tests and General Diagnostics).
* Inspect the accessible system components or the visible system components for obvious damage or for obvious conditions which can 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 (Component Tests and General Diagnostics).

Symptom List

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

Gages and Odometer
* Engine Oil Pressure Gage Inaccurate or Inoperative (Engine Oil Pressure Gage Inaccurate or Inoperative)
* Fuel Gage Inaccurate or Inoperative (Fuel Gage Inaccurate or Inoperative)
* Instrument Cluster Gages Inoperative (Instrument Cluster Gages Inoperative)
* Hourmeter Inaccurate or Inoperative (Hourmeter Inaccurate or Inoperative)

Indicators
* ABS Indicator Malfunction (ABS Indicator Malfunction)
* Air Bag Indicator Circuit Malfunction (Air Bag Indicator Circuit Malfunction)
* Brake Warning Indicator Malfunction (Brake Warning Indicator Malfunction)
* Charge Indicator Malfunction (Charge Indicator Malfunction)
* Compass Malfunction (Compass Malfunction)
* Door Ajar Indicator Malfunction (Door Ajar Indicator Malfunction)
* Driver Information Center (DIC) Switch Malfunction (Driver Information Center (DIC) Switch Malfunction)
* Lights On Indicator Malfunction (Lights On Indicator Malfunction)
* Malfunction Indicator Lamp (MIL) Diagnosis (Malfunction Indicator Lamp (MIL) Diagnosis)for the 4.3L engine
* Malfunction Indicator Lamp (MIL) Diagnosis (Malfunction Indicator Lamp (MIL) Diagnosis)for the 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L engine
* Malfunction Indicator Lamp (MIL) Diagnosis (Malfunction Indicator Lamp (MIL) Diagnosis)for the 6.6L (LMM) engine
* Passenger Presence System Indicator Circuit Malfunction (Passenger Presence System Indicator Circuit Malfunction)
* Seat Belt Indicator Circuit Malfunction - Driver (Seat Belt Indicator Circuit Malfunction - Driver)
* Seat Belt Indicator Circuit Malfunction - Passenger (Seat Belt Indicator Circuit Malfunction - Passenger)
* Low Tire Pressure Indicator Malfunction (Low Tire Pressure Indicator Malfunction)
* Outside Air Temperature Display Inaccurate or Inoperative (Outside Air Temperature Display Inaccurate or Inoperative)
* Tow/Haul Switch/Indicator Always On or Inoperative (Tow/Haul Switch/Indicator Always On or Inoperative)for the 4L60-E transmission
* Tow/Haul Switch/Indicator Always On or Inoperative (Tow/Haul Switch/Indicator Always On or Inoperative)for the 4L80-E transmission
* Turn Signal Lamps and/or Indicators Malfunction (Turn Signal Lamps and/or Indicators Malfunction)
* Water in Fuel Indicator Malfunction (Water in Fuel Indicator Malfunction)
* Engine Cranks But Does Not Run (Engine Cranks But Does Not Run)

Audible Warnings

Chime Malfunction (Chime Malfunction)