P2767

Input/Turbine Shaft Speed Sensor B Circuit No Signal

Q: Is it safe to drive with P2767?

Short-term, gently. Without the turbine-speed input the transmission may shift oddly or limp. Get it diagnosed soon to avoid extra wear.

Q: Can I just clear P2767?

You can, but a no-signal fault from a bad sensor or wiring returns quickly. Fix the sensor or circuit rather than relying on a clear.

Automatic transmission (speed sensor) Generic OBD-II Medium

What it means

P2767 means the transmission controller isn't receiving a signal from the 'B' input/turbine shaft speed sensor. That speed reading is key to timing shifts, so its loss causes harsh or erratic shifting or a protective limp mode. It's usually a failed sensor, a wiring/connector fault, or debris on the sensor tip — the engine itself still starts and runs.

Medium

Can I keep driving? Yes but with care — losing the turbine/input speed signal can cause harsh or erratic shifts or limp mode; repair soon to avoid added 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

Harsh or erratic shifting
Wrong-gear behavior or limp mode
Delayed engagement or poor shift quality
Check-engine light on

Common causes

Most likely first

Faulty input/turbine shaft speed sensor BLikely
Open or shorted sensor wiringCommon
Corroded or loose sensor connectorCommon
Metal debris on the sensor tip or damaged reluctor/tone ringLess often
Transmission control module fault (least likely)Less often

How to diagnose & fix

Work through it in order

Check transmission fluid level and condition.
Inspect the sensor connector and wiring for opens, corrosion, or chafing.
Remove the sensor and check the tip for metal debris; inspect the tone ring.
Back-probe and test for a speed signal while the input shaft turns.
Replace the speed sensor if it fails; consider the module only after wiring checks out.

FAQ

Quick answers

Is it safe to drive with P2767?+

Short-term, gently. Without the turbine-speed input the transmission may shift oddly or limp. Get it diagnosed soon to avoid extra wear.

Can I just clear P2767?+

You can, but a no-signal fault from a bad sensor or wiring returns quickly. Fix the sensor or circuit rather than relying on a clear.

Read & clear P2767 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