P0770/P0773 fault code at higher mileage due to failed 3-way lock-up solenoid on Toyota Corolla

Problem Description and Possible Solution

A transmission fault code of P0770 or P0773 may occur at higher mileages which indicates that the 3-way lock-up solenoid has failed and will need replacement.

Problem Data
RepairPal Verified
Average mileage: 195,000 (160,000–230,000)
Drive Train affected: Automatic Transmission
3 model years affected: 1995, 1996, 1997
6 people reported this problem