Diagnostic Formats

QUICK TEST and CIRCUIT TESTS are diagnostic formats used to test and service Electronic Engine Control (EEC) system. QUICK TEST allows technician to identify problems and retrieve trouble codes. CIRCUIT TESTS check circuits, sensors and actuators. Before starting any CIRCUIT TEST, follow all steps under QUICK TEST to find correct CIRCUIT TEST. If vehicle passes QUICK TEST and no driveability symptoms or intermittent faults exist, EEC system is okay.