For 1990-2009 cars only
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
This diagnostic procedure applies to serial data gages located in the instrument panel cluster (IPC) which include the engine coolant temperature gage and volt gage.
Reference Information
Schematic Reference
| • | Engine Controls Schematics for the 4.6L engine |
| • | Engine Controls Schematics for the 4.4L engine |
Connector End View Reference
| • | Engine Control Module Connector End Views for the 4.6L engine |
| • | Engine Control Module Connector End Views for the 4.4L engine |
Description and Operation
Instrument Cluster Description and Operation
Electrical Information Reference
Scan Tool Reference
Circuit/System Testing
Ignition ON, with the scan tool, perform the IPC Gage Sweep Test in the IPC Output Controls. Verify that all gage dials move from minimum to the maximum value and back to the gage minimum value.
| ⇒ | If all gages do not perform the IPC Gage Sweep Test, 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
