P0774
Shift Solenoid E Intermittent
Transmission
Generic OBD-II
Medium
What it means
P0774 means the transmission control module has seen an intermittent fault in the shift solenoid E circuit — it works some of the time but drops out unpredictably. That usually causes erratic or occasionally harsh shifting rather than a constant failure. Loose or corroded wiring is the most common cause, followed by a failing solenoid or low/dirty fluid.
Medium
Can I keep driving? Shifting may feel erratic on and off; the car stays drivable, but intermittent faults tend to worsen, so have it checked.
Common symptoms
What you'll notice
- Check-engine light on
- Erratic or inconsistent shifting between gears
- Occasional harsh or delayed shifts
- Intermittent failure to reach the expected gear
- Reduced fuel economy
Common causes
Most likely first
- Intermittent fault in shift solenoid ELikely
- Loose, chafed, or corroded wiring/connectors in the solenoid circuitCommon
- Low or contaminated transmission fluidCommon
- Sticking valve body passageLess often
- Failed transmission control module (TCM)Less often
How to diagnose & fix
Work through it in order
- Read freeze-frame data and check transmission fluid level and condition first.
- Wiggle-test and inspect the solenoid connector and harness for intermittent opens or corrosion — the usual culprit.
- Test shift solenoid E resistance and operation; replace if it drops out under load or heat.
- Inspect the valve body for a sticking valve if fluid is dirty.
- If the circuit and solenoid check out, evaluate the TCM. Clear and road-test to confirm.
FAQ
Quick answers
Is it safe to drive with P0774?+
Yes for short trips, but shifting may become unpredictable and the fault usually gets worse. Address it before it turns into a hard failure or limp mode.
Can I just clear P0774?+
Because the fault is intermittent, clearing may hide it for a while, but it returns when the glitch recurs. The wiring or solenoid still needs repair.
Related codes
Often seen with P0774
Read & clear P0774 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX