P0773 on Toyota
Shift Solenoid "E" Electrical
P0773 on Toyota vehicles indicates shift solenoid "e" electrical. Au7o has documented this code across 1 Toyota model — most commonly on Sienna. This code indicates the transmission control module detected an electrical problem in the circuit for shift solenoid E, such as an out-of-range current or voltage. Shift solenoids electronically route transmission fluid to engage gears, so an electrical fault can disrupt shifting. The vehicle may shift harshly, get stuck in a gear, or enter a limp/failsafe mode. The issue is electrical (wiring or the solenoid coil) rather than purely mechanical. Typical repair costs on Toyota range from $1,400 to $3,800, depending on the specific model and root cause.
Common Causes of P0773
- •Failed shift solenoid E (open or shorted coil)
- •Damaged or corroded wiring or connector
- •Short to power or ground in the solenoid circuit
- •Low or contaminated transmission fluid affecting the solenoid
- •Internal transmission harness fault
- •Faulty transmission control module (less common)
P0773 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.
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What does P0773 mean on Toyota?▼
P0773 stands for "Shift Solenoid "E" Electrical." This code indicates the transmission control module detected an electrical problem in the circuit for shift solenoid E, such as an out-of-range current or voltage. Shift solenoids electronically route transmission fluid to engage gears, so an electrical fault can disrupt shifting. The vehicle may shift harshly, get stuck in a gear, or enter a limp/failsafe mode. The issue is electrical (wiring or the solenoid coil) rather than purely mechanical. On Toyota specifically, this code is documented across 1 model.
What causes P0773 on Toyota vehicles?▼
Common causes on Toyota: Failed shift solenoid E (open or shorted coil), Damaged or corroded wiring or connector, Short to power or ground in the solenoid circuit, Low or contaminated transmission fluid affecting the solenoid, Internal transmission harness fault. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0773 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 P0773 documented?▼
Au7o has documented P0773 on 1 Toyota model: Sienna.