P0770
Shift Solenoid E
Transmission
Generic OBD-II
Medium
What it means
P0770 is a general fault in the shift solenoid E circuit — the transmission control module sees the solenoid or its wiring out of the expected range, disrupting the shifts that solenoid controls. It typically shows up as slipping, harsh or delayed shifts, or limp mode, often from a failed solenoid, wiring problem, or contaminated fluid.
Medium
Can I keep driving? Usually drivable with degraded shifting or limp mode; repair soon to prevent transmission damage.
Common symptoms
What you'll notice
- Slipping or not shifting properly
- Harsh or delayed shifts
- May enter limp mode
- Reduced fuel efficiency
- Check-engine or transmission warning light on
Common causes
Most likely first
- Failed shift solenoid ELikely
- Wiring or connector fault in the solenoid circuitCommon
- Loose or corroded electrical connectionsCommon
- Low or contaminated transmission fluidLess often
- Transmission control module fault (less common)Less often
How to diagnose & fix
Work through it in order
- Check transmission fluid level and condition, and service it if dirty.
- Read freeze-frame data and note any companion shift-solenoid codes.
- Inspect the solenoid wiring and connector for damage or corrosion.
- Measure the solenoid's resistance and test its operation.
- Replace shift solenoid E if it fails testing; treat the TCM as a last resort.
FAQ
Quick answers
Is it safe to drive with P0770?+
The car usually still drives but shifting is degraded and it may enter limp mode. Repair it soon to avoid transmission wear.
Can I just clear P0770?+
It returns if the solenoid or its circuit is still faulty. Fix the underlying wiring, fluid, or solenoid first.
Related codes
Often seen with P0770
Read & clear P0770 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