P2747Intermediate Shaft Speed Sensor B Circuit No Signal
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- P2747 is meant for the case where sensor B stays silent although the car is clearly moving. No manufacturer documents P2747 publicly. Ford's 2024 summary describes exactly this test for its intermediate sensors – vehicle inferred to be driving under positive torque, yet the sensor shows under 250 rpm lasting 2.5 s – but for sensor B it names only P2745, P2746 and P2748, so Ford apparently files missing pulses elsewhere. For the older single-sensor layout, Ford's 2012 strategy flags the intermediate shaft below 250 rpm for 5 s with turbine and output turning. Typical reasons are a sensor that has died internally, an open supply, or a reluctor that no longer passes the sensor. The module substitutes a calculated speed or goes into limp mode.
- What you may notice
- Warning lamp and transmission message while driving
- Limp-home mode, often stuck in one gear
- Rough or missing upshifts
- Likely causes
- LikelySensor B failed internally and delivers no pulses
- PossibleOpen supply or signal wire, unplugged connector
- RareReluctor ring displaced or sensor not seated in its bore
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Hard · Usually a job for a workshop.Typical cost: €150 – €1,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.