For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2007 🢒 Avalanche - 4WD 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Instrument Cluster Inoperative

Instrument Cluster Inoperative for Chevrolet Avalanche - 4WD 2007

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.

Voltage is supplied to the instrument panel cluster (IPC) through the battery voltage circuit and the RUN/CRANK relay voltage circuit. The IPC will operate when the RUN/CRANK relay voltage circuit is commanded on in the RUN/START position.

Reference Information

Schematic Reference

Instrument Cluster Schematics

Connector End View Reference

Displays and Gages Connector End Views

Electrical Information Reference

•	Circuit Testing

•	Connector Repairs

•	Testing for Intermittent Conditions and Poor Connections

•	Wiring Repairs

Scan Tool Reference

Scan Tool Data List

Circuit/System Testing

Ignition OFF, disconnect the IPC.
Ignition ON, verify that a test lamp illuminates between the RUN/CRANK relay voltage circuit and a ground.

⇒	If the test lamp does not illuminate, repair the RUN/CRANK voltage circuit for a short to ground or an open/high resistance.

Verify that a test lamp illuminates between the RUN/CRANK voltage circuit and the IPC ground circuit.

⇒	If the test lamp does not illuminate, repair the IPC ground circuit for an open/high resistance.

If all circuits test normal, replace the IPC

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

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