Shift Solenoid E Stuck On
P0772 indicates that Shift Solenoid E is stuck in the ON position, preventing proper transmission gear selection and shift timing. This occurs when the solenoid valve fails to close correctly, disrupting hydraulic pressure control and causing transmission malfunction.
What You Might Notice
- Transmission slipping between gears
- Transmission overheating
- Transmission catches or hesitates when shifting
- Decreased fuel economy
- Check Engine Light illuminated
- Vehicle entering limp mode or reduced power mode
Most Common Causes
- 1
Faulty Shift Solenoid E
The solenoid valve is stuck open or has failed electrically, preventing it from controlling hydraulic pressure needed for proper gear shifts.
- 2
Dirty or Contaminated Transmission Fluid
Degraded fluid with sludge or particles can cause the solenoid to stick or become clogged, restricting normal operation.
- 3
Clogged Transmission Filter
A blocked filter reduces hydraulic flow pressure, preventing the solenoid from functioning correctly and causing improper shift control.
- 4
Wiring or Connector Issues
Corroded connectors, damaged wiring, or poor electrical connections to the solenoid can cause stuck-on behavior or intermittent operation.
How to Diagnose It
- 1
Check Faulty Shift Solenoid E — The solenoid valve is stuck open or has failed electrically, preventing it from controlling hydraulic pressure needed for proper gear shifts.
- 2
Check Dirty or Contaminated Transmission Fluid — Degraded fluid with sludge or particles can cause the solenoid to stick or become clogged, restricting normal operation.
- 3
Check Clogged Transmission Filter — A blocked filter reduces hydraulic flow pressure, preventing the solenoid from functioning correctly and causing improper shift control.
- 4
Check Wiring or Connector Issues — Corroded connectors, damaged wiring, or poor electrical connections to the solenoid can cause stuck-on behavior or intermittent operation.
How to Fix It
- 1
Replace Shift Solenoid E
Remove and replace the faulty solenoid with a new OEM or quality replacement part. Ensure proper electrical connection and torque specifications.
- 2
Perform Transmission Fluid and Filter Service
Drain old transmission fluid, replace the transmission filter, and refill with manufacturer-specified fluid. This removes contaminants that may be causing solenoid sticking.
- 3
Inspect and Repair Wiring and Connectors
Check the solenoid connector for corrosion or damage, clean contacts, and inspect wiring for breaks or shorts. Repair or replace damaged components as needed.
- 4
Check Valve Body and Hydraulic Passages
If solenoid replacement and fluid service do not resolve the code, inspect the valve body for debris or wear, and clear any restricted hydraulic passages. May require transmission disassembly.
Need a deeper diagnosis?
Search for related repair guides or browse by system.