How to Perform Diagnosis For Quick and Accurate Repair
HOW TO PERFORM DIAGNOSES FOR QUICK AND ACCURATE REPAIRINTRODUCTION
- Before attempting to diagnose any part of the active suspension, refamiliarize yourself with instructions outlined under "Precautions". Service Precautions
- Trouble is usually caused by a faulty part in either the electrical or hydraulic system. However, it sometimes occurs due to a combination of problems in both systems. For this reason, reproduction tests are a must in determining the cause of the trouble.
- If diagnosis indicates hydraulic component parts are faulty, refer to "WORK PROCEDURES BY UNIT" in "Repair of Components Parts". Service and Repair
Perform required operations (such as relieving pressure, bleeding air, etc.) associated with repair work.
- When voltage or resistance is measured at active suspension control unit connector terminals, always use a check adapter (EG17710000). If no abnormalities are found through this inspection, check with CONSULT set to FIELD TEST mode. Try to record data concerning faults which occur occasionally and are difficult to reproduce.
NOTE: For operation of CONSULT's FIELD TEST mode, refer to CONSULT OPERATION MANUAL INTRODUCTION & SUB MODE, which is issued separately.
- When control unit is determined to be faulty, recheck with CONSULT set to self-diagnostic mode for confirmation. It is advisable to record numerals (C/U MALFUNCTION 1 through 5) indicated on CONSULT display on old control unit. Doing so, cause of trouble can be analyzed for future reference. Replace only control unit, not bracket.
NOTE: Control unit bracket is secured to upper side of parcel shelf. Do not attempt to press control unit upper lid since this may damage PC boards.