Engine Coolant Temperature Gage Inaccurate or Inoperative. Chevrolet Traverse 2009

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2009 🢒 Traverse 🢒 Driver Information and Entertainment 🢒 Displays and Gages 🢒 Engine Coolant Temperature Gage Inaccurate or Inoperative

Diagnostic Instructions

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

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

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

The instrument panel cluster (IPC) displays the engine coolant temperature as determined by the engine control module (ECM). The IPC receives a serial data message from the ECM indicating the engine coolant temperature.

Reference Information

Schematic Reference

•	Instrument Cluster Schematics

•	Engine Controls Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Instrument Cluster Description and Operation

Electrical Information Reference

•	Circuit Testing

•	Connector Repairs

•	Testing for Intermittent Conditions and Poor Connections

•	Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

Ignition ON, perform the engine coolant gage sweep test with the scan tool, verify that the engine coolant temperature gage sweeps from its low to high position.

⇒	If the engine coolant gage does not sweep, replace the IPC.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

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