- 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, 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. Initial Inspection and Diagnostic Overview

2. Review the system operation in order to familiarize yourself with the system functions. Refer to the following:

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

Visual/Physical Inspection

* Inspect for aftermarket devices which could affect the operation of the Instrument Cluster or Audible Warning Systems.
* Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
* Inspect for proper fluid level.

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

* Instrument Cluster Inoperative
* Engine Coolant Temperature Gage Inaccurate or Inoperative
* Fuel Gage Inaccurate or Inoperative (Single Tank) Fuel Gage Inaccurate or Inoperative (Dual Tanks)
* Hourmeter Inaccurate or Inoperative
* Speedometer and/or Odometer Inaccurate or Inoperative
* Tachometer Inaccurate or Inoperative
* Volt Gage Inaccurate or Inoperative

Indicators

* Change Engine Oil Indicator Always On
* Door Ajar Indicator Malfunction (w/YE9) Door Ajar Indicator Malfunction (w/o YE9)
* Engine Oil Pressure Indicator Always On
* Low Engine Oil Level Indicator Always On
* Mirror Compass Display Inoperative or Inaccurate
* Mirrors - Temperature Display Inaccurate
* Mirrors - Temperature Displays SC or OC
* Four-Wheel Drive Indicator Always On for the MP 1222/1225/1226-NQG transfer case
* Four-Wheel Drive Indicator Inoperative for the MP 1222/1225/1226-NQG transfer case
* Transfer Case Shift Control Switch Inoperative for the MP 1625/1626-NQF transfer case
* Transfer Case Shift Control Switch Indicator Always On - Two or More for the MP 1625/1626-NQF transfer case
* Transfer Case Shift Control Switch Indicator Inoperative - One or More for the MP 1625/1626-NQF transfer case
* Service Indicator Always On for the MP 1625/1626-NQF transfer case
* Transfer Case Shift Control Switch Indicator Always On - Two or More for the MP 3023/3024-NQH transfer case
* Transfer Case Shift Control Switch Indicator Inoperative - One or More for the MP 3023/3024-NQH transfer case
* Service Indicator Always On for the MP 3023/3024-NQH transfer case
* Brake Warning Indicator Malfunction
* ABS Indicator Always On
* ABS Indicator Inoperative
* Stability System Caution Indicator Always On
* Stability System Caution Indicator Inoperative
* Charge Indicator Always On
* Charge Indicator Inoperative
* Malfunction Indicator Lamp (MIL) Diagnosis for the 4.3L engine
* Malfunction Indicator Lamp (MIL) Diagnosis for the 4.8L, 5.3L, 6.0L, and 6.2L engines
* Malfunction Indicator Lamp (MIL) Diagnosis for the 6.6L (LMM) engine
* Tow/Haul Switch/Indicator Always On or Inoperative for the 4L60-E/4L65-E/4L70-E automatic transmission
* Tow/Haul Switch/Indicator Always On or Inoperative for the 6L50/6L80/6L90 automatic transmission
* Low Washer Fluid Indicator Malfunction
* Fog Lamp Indicator Inoperative
* High Beam Indicator Always On
* High Beam Indicator Inoperative
* Turn Signal Lamps and/or Indicators Always On or Flashing
* Turn Signal Lamps and/or Indicators Inoperative
* Air Bag Indicator Circuit Malfunction
* Passenger Presence System Indicator Circuit Malfunction
* Seat Belt Indicator Circuit Malfunction - Driver
* Seat Belt Indicator Circuit Malfunction - Passenger
* Security Indicator Malfunction

Instrument Cluster Dimming

* Interior Backlighting Does Not Dim
* Interior Backlighting Inoperative

Driver Information Center (DIC)

Driver Information Center (DIC) Switch Inoperative

Audible Warnings

* Chime Always On
* Chime Inoperative