Inspection Procedure 12: Does not shift properly (some points)


COMMENTS ON TROUBLE SYMPTOM



PROBABLE CAUSES



  • Malfunction of valve body
  • Malfunction of the A/T-ECU

DIAGNOSIS PROCEDURE

STEP 1. Check when the shift points early or late.

Q. Are the shift points early or late only when A/T fluid is -20°C or less, or 125°C or more?
The symptom is due to characteristics of the INVECS-II system, but is not abnormal.
Go to Step 2.

STEP 2. M.U.T.-III actuator test
(1)Item 33: INVECS-II cancel command
(2)Test drive the vehicle (Refer to Road Test, Inspection procedure 8 ).
(3)Check that the gear shifting corresponds to the standard shift line of the shift pattern diagram.

Q. Is the check result normal?
The inspection is complete.
Replace the A/T-ECU.