- 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 in order to verify the following conditions:

* There are not any DTCs set.
* The control modules can communicate via the serial data link. Initial Inspection and Diagnostic Overview

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

* Instrument Cluster Description and Operation
* Indicator/Warning Message Description and Operation
* Audible Warnings 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.
* 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 in Diagnostic Aids. 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
* Fuel Gage Inaccurate or Inoperative (Dual Tank) Fuel Gage Inaccurate or Inoperative (Single Tank)
* Instrument Cluster Inoperative
* Instrument Cluster Gages Inoperative

Indicators

* ABS Indicator Always On
* ABS Indicator Inoperative
* Air Bag Indicator Circuit Malfunction
* Brake Warning Indicator Always On
* Brake Warning Indicator Inoperative
* Change Engine Oil Indicator Always On
* Change Engine Oil Indicator Inoperative
* Charge Indicator Always On
* Charge Indicator Inoperative
* Rear Fog Lamp Indicator Inoperative
* High Beam Indicator Always On
* High Beam Indicator Inoperative
* Low Engine Oil Level Indicator Always On
* Low Fuel Indicator Inoperative
* Malfunction Indicator Lamp (MIL) Inoperative for the 4.3L engine
* Malfunction Indicator Lamp (MIL) Always On for the 4.3L engine
* Malfunction Indicator Lamp (MIL) Always On for the 4.8L, 5.3L, and 6.0L engine
* Malfunction Indicator Lamp (MIL) Inoperative for the 4.8L, 5.3L, and 6.0L engine
* Malfunction Indicator Lamp (MIL) Diagnosis for the 6.6L (LBZ and LLY) engine
* Malfunction Indicator Lamp (MIL) Diagnosis for the 6.6L (LMM) engine
* Mirror Compass Display Inoperative or Inaccurate
* Mirrors - Temperature Display Inaccurate
* Mirrors - Temperature Displays SC or OC
* Passenger Presence System Indicator Circuit Malfunction
* Seat Belt Indicator Circuit Malfunction - Driver
* Seat Belt Indicator Circuit Malfunction - Passenger
* Security Indicator Always On or Flashing
* Security Indicator Inoperative
* Stability System Caution Indicator Always On
* Stability System Caution Indicator Inoperative
* Stability System Not Ready Indicator Always On
* Stability System Not Ready Indicator Inoperative
* Tow/Haul Switch/Indicator Always On or Inoperative for the 4L60-E transmission
* Turn Signal Lamps and/or Indicators Always On or Flashing
* Turn Signal Lamps and/or Indicators Inoperative
* Water-in-Fuel Lamp Always On
* Water-in-Fuel Lamp Inoperative

Audible Warnings

* Chime Always On
* Chime Inoperative