P0985
Shift Solenoid E Control Circuit Low
Transmission
Generic OBD-II
Medium
What it means
P0985 means the transmission control module detects low voltage — usually a short to ground or an open — in the shift solenoid E control circuit. Because this solenoid helps engage gears, the fault typically causes erratic or harsh shifting and can force the transmission into limp mode until the circuit is repaired.
Medium
Can I keep driving? Short trips only — the transmission may shift erratically or drop into limp mode; repair soon to avoid slipping and heat damage.
Common symptoms
What you'll notice
- Erratic, harsh, or missed shifts
- Transmission slipping or stuck in one gear (limp mode)
- Reduced acceleration
- Check-engine light on
Common causes
Most likely first
- Short to ground or open in the shift solenoid E control circuitLikely
- Failed shift solenoid ECommon
- Damaged or corroded wiring or connector at the solenoidCommon
- Failed transmission control module (TCM)Less often
How to diagnose & fix
Work through it in order
- Read freeze-frame data and inspect the solenoid E connector and wiring for shorts, opens, or corrosion.
- Measure shift solenoid E resistance against spec; a low or open reading points to a failed solenoid.
- Repair any shorted or grounded wiring found in the control circuit.
- If the solenoid and wiring test good, have the TCM diagnosed. Clear and road-test.
FAQ
Quick answers
Is it safe to drive with P0985?+
Only briefly. Slipping and erratic shifts build heat that wears the transmission, so limit driving until it's fixed.
Can I just clear P0985?+
It returns until the low-voltage fault in the solenoid circuit is repaired.
Related codes
Often seen with P0985
Read & clear P0985 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