Diagnostic Formats

QUICK TEST and CIRCUIT TESTS are diagnostic formats used to test and service the diesel EEC-V system. QUICK TEST allows technician to identify problems and retrieve Diagnostic Trouble Codes (DTCs). CIRCUIT TESTS check circuits, sensors and actuators.

Before starting any CIRCUIT TEST, follow all steps under QUICK TEST  to find appropriate circuit test to perform. If vehicle passes QUICK TEST and no driveability symptoms or intermittent faults exist, EEC-V system is functioning properly at this time.