P2767: Input/Turbine Shaft Speed Sensor B Circuit No Signal

P2767 reports that pulses from sensor B are missing. Ford's DPS6 dual-clutch box of 2012 checks input shaft 2 for lack of signal under this code, alongside P2765 for circuit faults and P2766 for erratic readings. Mitsubishi's 2022 CVT, whose sensor B watches the secondary pulley, looks for a sudden collapse: a speed of at least 1,000 rpm that reads zero only 10 ms later, held for 0.5 s – a pattern typical of a wire or plug letting go, rather than a slow sensor death. It is a two-trip code with MIL there; the fail-safe gives slow starts and acceleration, no lock-up and no manual mode. Check connector and harness first, then the sensor; where B sits inside a sealed unit, the repair may involve the whole assembly.

Medium severity. Can I keep driving?Drive gently to a repair shop. If it slips, you hear clunks, or it loses its gears, do not keep driving.

Symptoms

Warning lamp and transmission fail-safe
Slow start-off and weak acceleration
Manual shift mode not available

Most likely causes

Connector or terminal letting go, open signal wire
Sensor B failed with no output
TCM sensor input defective

What to check, in order

Start with the simplest. You can tick off each step.

Check the fluid level and condition
Check power and ground before replacing the sensor.
Read the input and output speed in live data
Check the connector and wiring
Check for other related engine codes
Consult the manufacturer's procedure for the transmission

Good to know

Repair difficulty: hard
It can trigger limp mode.
It affects emissions.

What each character of P2767 means

P: Powertrain: engine and transmission
2: Generic code: same on every make
7: Transmission
67: Specific fault in that system

Frequently asked questions

Can I keep driving with code P2767?

Drive gently to a repair shop. If it slips, you hear clunks, or it loses its gears, do not keep driving.

What causes code P2767?

The most common causes are: connector or terminal letting go, open signal wire; sensor B failed with no output; tCM sensor input defective.

Related codes

Sources

Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.