Inspection Procedure 5

INSPECTION PROCEDURE 5: The ACD Does Not Operate (No Diagnosis Code)

COMMENT
Insufficient operating oil, oil leakage, faulty operations of the oil pressure unit, and faulty operations of the transfer may be suspected.

TROUBLESHOOTING HINTS (THE MOST LIKELY CAUSES FOR THIS CONDITION:)
^ Leakage of transfer oil
^ Insufficient transfer oil
^ Leakage of oil pressure line
^ Insufficient fluid
^ Malfunction of the hydraulic unit
^ Malfunction of the transfer

DIAGNOSIS
STEP 1. Check the transfer oil.
Q: Is the check result normal?
YES: Go to Step 3.
NO: Go to Step 2.

STEP 2. Check the transfer oil leaks.
Check that the transfer oil is not leaking.
Q: Is the check result normal?
YES: Add the transfer oil.
NO: Repair the leaking part and add the transfer oil.

STEP 3. Check the fluid.
Q: Is the check result normal?
YES: Go to Step 5.
NO: Go to Step 4.

STEP 4. Check the fluid leaks.
Check that the fluid is not leaking.
Q: Is the check result normal?
YES: Add the fluid.
NO: Repair the leaking part and add the fluid.

STEP 5. Check the ACD operation.
Q: Is the check result normal?
YES: The procedure is complete.
NO: Go to Step 6.

STEP 6. Check the fluid pressure.
Q: Is the check result normal?
YES: Go to Step 7.
NO: Go to Step 8.

STEP 7. Check the hydraulic pressure line.
Check that the hydraulic pressure line is not contaminated with foreign materials.
Q: Is the check result normal?
YES: Replace the transfer.
NO: Repair.

STEP 8. Perform air bleeding.
Q: Is the check result normal?
YES: The procedure is complete.
NO: Replace the hydraulic pressure unit.