P2811
Pressure Control Solenoid G Intermittent
Transmission controls
Generic OBD-II
Medium
What it means
P2811 means the transmission controller saw an intermittent electrical fault on pressure-control solenoid G, which regulates hydraulic pressure for shifts. Because the fault comes and goes, symptoms like harsh or slipping shifts may be occasional, and the transmission may briefly enter limp mode. Typical causes are low or dirty fluid, a loose connector, or a sticking solenoid.
Medium
Can I keep driving? Often drivable but rough — an intermittent pressure-control solenoid can cause harsh or slipping shifts and may trigger limp mode; get it fixed to avoid clutch wear.
Common symptoms
What you'll notice
- Check-engine light on
- Harsh, erratic, or slipping shifts that come and go
- Transmission occasionally drops into limp/failsafe mode
- Momentary flare in engine RPM during a shift
Common causes
Most likely first
- Low or dirty transmission fluid affecting hydraulic pressureLikely
- Intermittent open or short in the solenoid G wiring or connectorCommon
- Sticking or worn pressure-control solenoid GCommon
- Contamination in the valve body around the solenoidLess often
- Faulty TCM driver circuit (least likely)Less often
How to diagnose & fix
Work through it in order
- Read freeze-frame and check transmission fluid level and condition first.
- Wiggle-test the solenoid G harness and connector to reproduce the intermittent fault.
- Measure solenoid resistance and command it with a scan tool to confirm response.
- Service the fluid/filter or inspect the valve body if fluid is contaminated.
- Replace solenoid G if it tests faulty; clear and road-test through the shift range.
FAQ
Quick answers
Is it safe to drive with P2811?+
Short-term, light driving is usually okay, but repeated harsh or slipping shifts can wear the clutches. Diagnose it soon, especially if it keeps entering limp mode.
Can I just clear P2811?+
An intermittent fault may stay away briefly after clearing, but it returns until the wiring, solenoid, or fluid problem is fixed.
Related codes
Often seen with P2811
Read & clear P2811 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