1. P1722: estimated speed signal
2. P1778: step motor function
3. P0746: pressure control solenoid A performance/stuff off
4. P0868: Secondary pressure down.
Then I replaced the valve body from the old gear, and I still used the step motor from the gear purchased because the step motor of old gear was broken. So, I test drove it and it didn't shift gear and I diagnosed it again, it return
P0746, P0868 and P1778. I checked transmission fluid and filter and CVT circuit from TCM to CVT UNIT, all checks okay. What could be the problem of this gear? Is it transmission pump that starves those solenoid oil and TCM is seeing it as a fault?
I attached the screenshot of the diagnostic report.
have the same problem?
Monday, July 25th, 2022 AT 8:42 AM