P0772
UniversalShift Solenoid E Stuck On
High SeverityThis code indicates that the vehicle's powertrain control module (PCM) has detected that the Shift Solenoid E is stuck in the 'on' position. This often leads to improper or harsh transmission shifting, affecting the vehicle's ability to operate smoothly or accelerate correctly.
⚠️ Before You Begin (Safety First)
Always use jack stands when working under a vehicle. The transmission fluid can be very hot, so allow the vehicle to cool before starting any work. Disconnect the battery before attempting any electrical repairs. Wear appropriate eye protection and gloves.
Common Symptoms
- Check Engine Light illuminated
- Harsh or erratic shifting
- Transmission stuck in one gear (limp mode)
- Delay in engagement when shifting into Drive or Reverse
- Reduced fuel economy
- Vehicle not shifting into higher gears
Common Causes
- Faulty Shift Solenoid E (stuck open or closed)
- Contaminated transmission fluid
- Clogged transmission fluid filter
- Internal transmission mechanical failure
- Wiring harness issues (open, short, or poor connection)
- Faulty transmission control module (TCM) or powertrain control module (PCM)
Frequently reported on: General/Universal
Diagnostic Steps
- Check transmission fluid level and condition. Ensure it is clean and at the correct level.
- Inspect the wiring harness and connectors for the Shift Solenoid E for any visible damage, corrosion, or loose connections.
- Use a multimeter to test the resistance of the Shift Solenoid E. Compare readings to manufacturer specifications.
- If necessary, drain the transmission fluid and remove the transmission pan to access the shift solenoids. Replace the faulty Shift Solenoid E.
- Replace the transmission filter and gasket, then refill with fresh, specified transmission fluid.
- Clear the P0772 code using an OBD-II scanner and test drive the vehicle to confirm the repair.
👨🔧 When to Call a Professional
If, after replacing the Shift Solenoid E, the code persists or if you are uncomfortable dropping the transmission pan and dealing with transmission fluid, it is time to consult a professional transmission specialist. Issues with the valve body or PCM can mimic a stuck solenoid.
Commonly Asked Questions
What does Shift Solenoid E do?
Shift Solenoid E is an electronic valve controlled by the vehicle's computer that regulates the flow of transmission fluid to engage specific gears, enabling the transmission to shift smoothly between them.
Can I drive my car with a P0772 code?
While your car may still be drivable, it is not recommended to drive for an extended period with this code. It can lead to further transmission damage due to improper shifting, overheating, or operation in limp mode.
Is it always the shift solenoid that causes this code?
Not always. While a faulty shift solenoid is the most common cause, dirty transmission fluid, a clogged filter, wiring issues, or even problems with the transmission's control module (TCM/PCM) can also trigger P0772.
What tools will I need to replace a shift solenoid?
You will likely need an OBD-II scanner, a set of wrenches and sockets, a drain pan, new transmission fluid, a new transmission filter and gasket, and possibly a torque wrench and a multimeter for testing.
How much does a new shift solenoid cost?
The cost of a new shift solenoid can vary widely depending on the vehicle make and model, typically ranging from $50 to $250 for the part alone. Labor costs will be extra if a professional performs the repair.