Diagnostic Formats

QUICK TEST  and SYSTEM TESTS  are diagnostic formats used to test and service EEC-V system. QUICK TEST allows technician to identify concerns and retrieve DTCs. SYSTEM TESTS check circuits and solenoids of transaxle system.

Before performing any SYSTEM TEST, follow all steps in QUICK TEST  under DIAGNOSIS & TESTING to find appropriate SYSTEM TEST. If vehicle passes QUICK TEST and no driveability symptoms or intermittent faults exist, EEC-V system is okay. If EEC-V system is okay, attempt diagnosis by symptom. See SYMPTOM DIAGNOSIS under TROUBLE SHOOTING in FORD AX4N OVERHAUL article.