- 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 - 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. Testing and Inspection
2. Review the system operation in order to familiarize yourself with the system functions. Refer to the following:
- Instrument Panel Cluster (IPC) 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 .

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 Oil Pressure Gage Inaccurate or Inoperative
- Fuel Gage Inaccurate or Inoperative (Single Tank) Fuel Gage Inaccurate or Inoperative (Dual Tanks)
- Instrument Panel Cluster (IPC) Gages Inoperative
- Odometer Trip/Reset Switch Inoperative
- Speedometer and/or Odometer Inaccurate or Inoperative
- Tachometer Inaccurate or Inoperative
- Volt Gage Inaccurate or Inoperative
- Change Engine Oil Indicator Always On
- Low Engine Oil Level Indicator Always On

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
- Charge Indicator Always On
- Charge Indicator Inoperative
- Cruise Control Indicator Always On (Without Throttle Actuator Control) Cruise Control Indicator Always On (With Throttle Actuator Control)
- Cruise Control Indicator Inoperative (Without Throttle Actuator Control) Cruise Control Indicator Inoperative (With Throttle Actuator Control)
- Engine Coolant Temperature Indicator Always On
- Engine Overheated Indicator Always On
- High Beam Indicator Always On
- High Beam Indicator Inoperative
- Low Engine Coolant Indicator Always On
- Low Engine Oil Level Indicator Always On
- Low Washer Fluid Indicator Malfunction
- 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) Inoperative for the 4.8L, 5.3L and 6.0L engine
- Malfunction Indicator Lamp (MIL) Always On for the 4.8L, 5.3L and 6.0L engine
- Malfunction Indicator Lamp (MIL) Diagnosis for the 6.6L engine
- Security Indicator Always On or Flashing
- Security Indicator Inoperative
- 4WD Indicator Always On for the NVG 261 - NP2 transfer case
- 4WD Indicator Inoperative for the NVG 261 - NP2 transfer case
- Service Indicator Always On for the NVG 246 - NP8 transfer case
- Service Indicator Inoperative for the NVG 246 - NP8 transfer case
- Service Indicator Always On for the NVG 263 - NP1 transfer case
- Service Indicator Inoperative for the NVG 263 - NP1 transfer case
- Tow/Haul Switch/Indicator Always On or Inoperative for the 4L60-E transmission
- Tow/Haul Switch/Indicator Always On or Inoperative for the 4L60-E transmission
- Traction Off Indicator Always On
- Traction Off Indicator Inoperative
- 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

Instrument Cluster Dimming
- Interior Backlighting Inoperative
- Interior Backlighting Does Not Dim

Driver Information Center (DIC)
- Driver Information Center (DIC) Switch(es) Inoperative

Audible Warnings
- Chime Always On
- Chime Inoperative