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

Submitted by Vehicle Owner · May 29, 2025
Published by RepairPal

Problem overview

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.

10 people reported this problem
2 comments
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Toyota Corolla vehicles with this problem

Average mileage: 712,500 miles
(140,000 - 2,320,000)

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