Code No. P1710: Malfunction of Vehicle Speed Signal




DIAGNOSTIC FUNCTION


CVT-ECU conducts fault detection by detecting the rapid change in the estimated vehicle speed signal received from the ASC-ECU.

JUDGEMENT CRITERIA




PROBABLE CAUSES




DIAGNOSTIC PROCEDURE


STEP 1. Troubleshoot the CAN system if diagnosis code U0121 is set.


Q. Is the diagnosis code U0121 set?

Diagnose the CAN system.
Go to Step 2.

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



  • Item 21: Vehicle speed signal
  • Item 22: Vehicle speed
OK: The difference between the vehicle speed signal and the vehicle speed is 10 km/h or less.

Q. Is the check result normal?

Intermittent malfunction
Go to Step 3.

STEP 3. Check ASC-related diagnosis codes.


Q. Is the ASC-related diagnosis code set?

Carry out the appropriate troubleshooting.
Go to Step 4.

STEP 4. Symptom recheck after erasing diagnosis code


Q. Is the check result normal?

Intermittent malfunction
Replace CVT-ECU.