Obdaryn

P2745Intermediate Shaft Speed Sensor B Circuit

  • Generic OBD-II code · Powertrain
  • Turns on the check-engine light
  • Matters for the ITP
  • Can trigger limp mode
How the car detects it
P2745 is the general circuit code for a second intermediate shaft speed sensor, called B. Such a sensor reads a shaft that turns between input and output, on a dual-clutch box typically the second clutch shaft. Ford's 2024 OBD summary documents it: its ten-speed automatics carry two intermediate sensors (the eight-speeds only one), and P2745 means sensor B has an open circuit or a short to ground, while a short to battery appears as P07C8. These hardware checks mature in roughly 1.5 s and run even when the car stands still. On Ford's TR9070 dual-clutch unit, the even-gear clutch shaft sensor is filed under the same P2745 family. Without the signal the module loses one ratio reference, so harsh shifts or a fixed limp-home gear are likely.
What you may notice
  • Check engine light and transmission warning
  • Harsh or delayed shifts
  • Limp-home mode with a fixed gear
Likely causes
  • LikelySignal or supply lead to sensor B broken or chafed to ground
  • PossibleCorroded or loose pins at the transmission connector
  • PossibleInternal fault of intermediate shaft speed sensor B
  • RareFaulty sensor input in the transmission control module
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: €100 – €1,500

Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.