Instrument Cluster Gauges Malfunction

Instrument Cluster Gauges Malfunction

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.

* Diagnostic Procedure Instructions Diagnostic Procedure Instructions provides an overview of each diagnostic category.

Circuit/System Description

This diagnostic procedure applies to serial data gauges located in the instrument panel cluster (IPC) which include the speedometer, tachometer, engine coolant temperature gauge and volt gauge if equipped.

Reference Information

Schematic Reference

Instrument Cluster Schematics Instrument Cluster Schematics

Connector End View Reference

Component Connector End Views A/C Compressor Clutch

Description and Operation

Instrument Cluster Description and Operation Instrument Cluster

Electrical Information Reference

* Circuit Testing Circuit Testing

* Connector Repairs Connector Repairs

* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections

* Wiring Repairs Wiring Repairs

* Lifting and Jacking the Vehicle Service and Repair

Scan Tool Reference

Control Module References Control Module References for scan tool information

Circuit/System Verification

Important:
If the suspect gauge is the speedometer, the drive wheels of the vehicle must be raised and the transmission must be placed in drive or first gear.


1. Ignition ON, perform the IPC gauge sweep test with the scan tool. Verify that all the gauges sweep from their low to high position.

• If any gauges do not sweep from their low to high position, replace the IPC.

2. Engine ON, transmission in drive or first gear, verify the scan tool Vehicle Speed parameter matches the speedometer display.

• If the Vehicle Speed parameter does not match the speedometer display, test or replace the IPC.

Repair Instructions

Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.

Control Module References Control Module References for the IPC replacement, setup and programming