Inspection Procedure 8: The A/C indicator flashes.


CIRCUIT OPERATION


If the A/C indicator flashes then the possible causes may be due to a defective A/C pressure system or insufficient refrigerant gas.

TROUBLESHOOTING HINTS



DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III CAN bus diagnostics
Use the M.U.T.-III to diagnose the CAN bus lines.

Q. Is the check result normal?
Go to Step 2.
Repair the CAN bus line (Refer to GROUP 54C - Troubleshooting ).

STEP 2. M.U.T.-III diagnosis code
Check whether the air conditioner sets a diagnosis code or not.

Q. Is the check result normal?
Go to Step 3.
Refer to diagnosis code chart .

STEP 3. M.U.T.-III data list
Check that the following service data display contents are normal.

  • Item 11: A/C Pressure sensor

Q. Is the check result normal?
Go to Step 4.
Inspection Procedure 9: Refer to A/C pressure sensor system .

STEP 4. Check the refrigerant level.
Refer to .

Q. Is the refrigerant level correct?
Go to Step 5.
Correct the refrigerant level (Refer to On-vehicle Service ).

STEP 5. Recheck the trouble symptom

Q. Is the check result normal?
The trouble can be an intermittent malfunction (Refer to GROUP 00, How to Cope with Intermittent Malfunction ).
Inspection Procedure 9: Refer to A/C pressure sensor system .