Code No. P0725: Malfunction of Engine Speed




DIAGNOSTIC FUNCTION


CVT-ECU detects malfunction of engine speed received from the engine-ECU by comparing the primary pulley speed with the secondary pulley speed.

JUDGMENT CRITERIA




PROBABLE CAUSES




DIAGNOSTIC PROCEDURE


STEP 1. M.U.T.-III CAN bus diagnostics


Use M.U.T.-III to perform the CAN bus diagnosis.

Q. Is the check result normal?

Go to Step 2.
Go to "CAN Troubleshooting."

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


Check if the engine-related diagnosis code is set.

Q. Is the check result normal?

Go to Step 3.
Go to "Engine Troubleshooting."

STEP 3. Symptom recheck after erasing diagnosis code


Q. Is the check result normal?

Intermittent malfunction
Replace CVT-ECU.