Inspection Procedure 6: The fluid temperature warning lamp illuminates too frequently.




PROBABLE CAUSES




DIAGNOSIS PROCEDURE


STEP 1. M.U.T.-III special function


Check the deterioration level of the CVT fluid.
note The CVT fluid deterioration level is the accumulation of the values counted depending on the fluid temperature of a certain period of time, and it shows the thermal deterioration level of the CVT fluid.

Q. Is the deterioration level of the CVT fluid less than 210,000?

Go to Step 2.
Replace the CVT fluid.

STEP 2. M.U.T.-III data list


Item 5: CVT fluid temperature sensor (Refer to Data List Reference Table )

Q. Is the check result normal?

Go to Step 3.
NO : Diagnosis code No.P0711, P0712, P0713: Diagnose the CVT fluid temperature sensor.

STEP 3. Coolant system clogging check


Check if the coolant system is clogged according to the following procedure.
caution Do not reuse the drained coolant.
(1)Drain the coolant.
(2)Remove water feed hose and water return hose.

(3)Blow air into the removed parts, and check that the air comes out from the opposite side.
(4)Blow air into the coolant outlet (A in the figure), and check that the air comes out from the opposite side (B in the figure).
(5)Install the parts, and replenish the coolant to the specified quantity.

Q. Is the check result normal?

Go to Step 4.

Replace the part(s) having damage or other problems.

STEP 4. Retest the system.


Q. Does a malfunction take place again?

Replace the CVT assembly.
Intermittent malfunction