P0770 on Toyota
Shift Solenoid 'E'
P0770 on Toyota vehicles indicates shift solenoid 'e'. Au7o has documented this code across 1 Toyota model — most commonly on Sienna. Set when the PCM/TCM detects a general malfunction in shift solenoid 'E' circuit. An 'E' solenoid fault disrupts the gear shift it controls. Typical repair costs on Toyota range from $1,400 to $3,800, depending on the specific model and root cause.
Common Causes of P0770
- •Faulty shift solenoid 'E'
- •Open or shorted solenoid wiring
- •Low or contaminated transmission fluid
- •Corroded connector
- •Valve body fault
P0770 on Toyota by Model
Toyota Sienna(1 issue)
- U140E/U140F 4-Speed Automatic Slipping, Flare, and No-Movement from Valve Body Wear1998-2003
The XL10 Sienna used the Aisin U140E (FWD) / U140F (AWD) four-speed automatic. On high-mileage vans the valve body bores and shift solenoids wear, line pressure falls off, and the transaxle first flares between gears, then slips, then loses forward movement entirely. Shift solenoid E failure is a recognized failure mode across the whole U140 family (Camry, Avalon, Sienna). Toyota acknowledged the pattern with a service campaign covering a no-movement/slipping condition of the automatic transaxle. This is a first-generation transaxle - it is not the same unit or the same failure as the XL20 U151E torque-converter shudder or the later UA80E eight-speed.
Looking for P0770 on a different make?
View P0770 across all makes →Frequently Asked Questions
What does P0770 mean on Toyota?▼
P0770 stands for "Shift Solenoid 'E'." Set when the PCM/TCM detects a general malfunction in shift solenoid 'E' circuit. An 'E' solenoid fault disrupts the gear shift it controls. On Toyota specifically, this code is documented across 1 model.
What causes P0770 on Toyota vehicles?▼
Common causes on Toyota: Faulty shift solenoid 'E', Open or shorted solenoid wiring, Low or contaminated transmission fluid, Corroded connector, Valve body fault. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0770 on a Toyota?▼
Repair costs on Toyota range from $1,400 to $3,800, depending on the specific model and root cause.
Which Toyota models have P0770 documented?▼
Au7o has documented P0770 on 1 Toyota model: Sienna.