P0755

Shift Solenoid B

Q: Is it safe to drive with P0755?

For a short distance, yes, but the transmission may shift harshly or enter limp mode. Prolonged driving with a slipping or overheating transmission risks internal damage, so repair it promptly.

Q: Can I just clear P0755?

It will come back until the solenoid, wiring, or fluid problem is fixed. Checking the fluid and the solenoid connector first is the cheapest place to start.

Transmission Generic OBD-II Medium

What it means

P0755 means the transmission control module has detected a fault in the shift solenoid B circuit. This solenoid directs hydraulic pressure to engage specific gears, so a fault can cause harsh or erratic shifting, a gear that won't engage, or limp mode. The engine still starts and runs — the problem is in the transmission's shifting, often from a bad solenoid, wiring, or dirty fluid.

Medium

Can I keep driving? Usually driveable, but the transmission may shift harshly, skip a gear, or drop into limp mode — get it diagnosed soon to avoid overheating and further wear.

Real-world scan data

Seen in

scans in the past year

Found in

<0.1%

of scans

<0.1%

of scans that found faults

Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.

Common symptoms

What you'll notice

Check-engine light on
Harsh, delayed, or erratic shifting
Transmission stuck in one gear or in limp mode
Slipping between gears
Reduced fuel economy

Common causes

Most likely first

Faulty shift solenoid BLikely
Low or dirty transmission fluid clogging the solenoidCommon
Open or shorted wiring in the shift solenoid B circuitCommon
Corroded or loose electrical connectorLess often
Faulty transmission control module (TCM)Less often

How to diagnose & fix

Work through it in order

Check transmission fluid level and condition first — service it if low, burnt, or dirty.
Read freeze-frame data and check for related shift-solenoid codes.
Inspect the solenoid wiring and connector for damage or corrosion.
Measure the shift solenoid B resistance and compare to spec; replace if out of range.
If wiring and solenoid are good, investigate the valve body and TCM.

FAQ

Quick answers

Is it safe to drive with P0755?+

For a short distance, yes, but the transmission may shift harshly or enter limp mode. Prolonged driving with a slipping or overheating transmission risks internal damage, so repair it promptly.

Can I just clear P0755?+

It will come back until the solenoid, wiring, or fluid problem is fixed. Checking the fluid and the solenoid connector first is the cheapest place to start.

Read & clear P0755 yourself

Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.

▶ Get it on Google Play

✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX