P0764
Shift Solenoid C Intermittent
Transmission — shift control
Generic OBD-II
Medium
What it means
P0764 means the control module has seen an intermittent electrical fault in shift solenoid C's circuit — the signal drops out momentarily rather than staying failed. Because it comes and goes, shifting may glitch occasionally and the check-engine light can flicker on and off. Intermittent codes like this usually trace to wiring or a connector rather than the solenoid itself.
Medium
Can I keep driving? Often driveable — shifting may glitch now and then, and the transmission may briefly limp; it won't stop the engine from starting.
Common symptoms
What you'll notice
- Occasional erratic or delayed shifts
- Intermittent harsh or rough shifting
- Transmission briefly slipping or dropping into limp mode
- Check-engine light on (may come and go)
Common causes
Most likely first
- Intermittent open or short in the shift solenoid C wiring or connector (most common for an intermittent code)Likely
- Failing shift solenoid CCommon
- Loose or corroded electrical connectionsCommon
- Low or contaminated transmission fluidLess often
- Failed transmission control module (rare)Less often
How to diagnose & fix
Work through it in order
- Read freeze-frame data to capture the conditions when the fault set.
- Wiggle-test the solenoid harness and connector while watching live data for dropouts — intermittent faults are usually wiring.
- Inspect and clean the connector; repair any chafed or corroded wiring.
- Check transmission fluid level and condition.
- If wiring is sound, test the shift solenoid and replace if it drops out intermittently. Clear and road-test.
FAQ
Quick answers
Is it safe to drive with P0764?+
Usually yes for short trips, but the intermittent nature means shifting can misbehave without warning. Fix it before it becomes constant.
Can I just clear P0764?+
It often clears easily because the fault is intermittent, but it will return until the loose connection or failing solenoid is found.
Related codes
Often seen with P0764
Read & clear P0764 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