Powertrain, generic (extended)

P2745 Intermediate Shaft Speed Sensor B Circuit

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

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.

Likely causes

Signal or supply lead to sensor B broken or chafed to ground
Corroded or loose pins at the transmission connector
Internal fault of intermediate shaft speed sensor B
Faulty sensor input in the transmission control module

Symptoms

  • Check engine light and transmission warning
  • Harsh or delayed shifts
  • Limp-home mode with a fixed gear

Repair estimate

DifficultyHardWorkshop job
Parts and labour€100–1,500
Time0.5–6 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

intermediate shaft speed sensor bwiring harness

Related codes

P2746P2747P2748P07C7P07C8P0791

References: fordservicecontent.com, law.cornell.edu.