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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. Circuit/System Description The instrument panel cluster (IPC) displays the engine coolant temperature as determined by the 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 ON, perform the engine coolant gage sweep test with the scan tool. If the engine coolant gage does not sweep from its low to high position, replace the IPC. Repair Procedures Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
2007 Hummer H3 2007 ACCESSORIES & EQUIPMENT Displays and Gages - H3
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