Code No. P1247: Trustful Check CVT




FUNCTION



  • Checks for an abnormal signal of CVT.

TROUBLE JUDGMENT


Check Condition
  • Ignition switch is "ON" position.
Judgement Criterion
  • A torque demand signal from CVT-ECU is abnormal.

FAIL-SAFE AND BACKUP FUNCTION



  • Torque requested by CVT-ECU is ignored.

PROBABLE CAUSE



  • Failed engine-ECU

DIAGNOSIS PROCEDURE


STEP 1. M.U.T.-III diagnosis code



  • Confirm the diagnosis code is set from the CVT-ECU.

Q. Is diagnosis code set?

Perform troubleshooting of CVT system (Refer to GROUP 23A - Diagnosis Code Chart ).
Go to Step 2.

STEP 2. M.U.T.-III diagnosis code



  • Reconfirmation of diagnosis code.

Q. Is diagnosis code set?

Replace the engine-ECU.
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).