P2735
Pressure Control Solenoid F Intermittent
Automatic transmission
Generic OBD-II
Medium
What it means
P2735 means the TCM saw an intermittent (dropping-out) signal from the "F" pressure control solenoid, which regulates transmission pressure. Because the fault comes and goes, shift quality can change unpredictably — harsh one moment, normal the next. The engine runs fine; the usual culprit is a loose connector or chafed wiring rather than the solenoid itself.
Medium
Can I keep driving? The engine runs normally, but the transmission may shift harshly on and off as the signal drops out. Drive gently and get it checked soon.
Common symptoms
What you'll notice
- Check-engine light on (may come and go)
- Intermittent harsh or erratic shifting
- Occasional slipping or brief limp mode
- Shift quality that changes without a clear pattern
Common causes
Most likely first
- Intermittent open/short in the pressure control solenoid 'F' circuitLikely
- Loose or corroded solenoid connector (common cause of an intermittent fault)Common
- Chafed internal transmission wiring that shorts occasionallyCommon
- A solenoid beginning to failLess often
- Contaminated fluid intermittently affecting the solenoidLess often
How to diagnose & fix
Work through it in order
- Read freeze-frame data, then wiggle-test the solenoid connector and harness while watching the signal to catch the dropout.
- Inspect the connector and internal wiring for corrosion, backed-out pins, or chafing.
- Check transmission fluid level and condition.
- If wiring is good, replace the solenoid (or internal harness) that's failing intermittently.
- Clear the code and road-test repeatedly to confirm the fault is gone.
FAQ
Quick answers
Is it safe to drive with P2735?+
Brief, gentle trips are usually okay, but intermittent shift faults can worsen. Diagnose it before long drives or towing.
Can I just clear P2735?+
It will clear, but an intermittent fault almost always returns once the loose connection or failing solenoid acts up. Repair the wiring or solenoid to keep it away.
Related codes
Often seen with P2735
Read & clear P2735 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