Engine: Testing and Inspection

FAULT DIAGNOSIS

Introduction

The following diagnostic procedures are provided to assist properly qualified persons to identify and rectify those faults relating to the engine which are most likely to be encountered.

If an electrical fault is suspected, refer to Powertrain Management. Certain predefined fault conditions cause a diagnostic trouble code (DTC) to be generated. In this case, refer to the procedure for that DTC. If no DTC is present, the engine diagnostic procedures can still be used by referring to the list of fault groups in Powertrain Management. The group numbers for certain fault conditions are included in the table below. For instrumentation faults, refer to Instrument Panel, Gauges and Warning Indicators.

Faults related to the cooling system are dealt under Cooling System.

Diagnostic Procedures




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