Toyota Celica Problem Report
Toyota Celica P0770/P0773 fault code at higher mileage due to failed 3-way lock-up solenoid
A code P0770 or P0773 may occur at higher mileages which indicates that the 3-way lock-up solenoid could be defective and may need replacement.
P0770 code won't go away, even though the car seems to drive fine. Transmission shop says they need to replace the solenoid. - Visitor