Powertrain, generic (extended)

P2751 Intermediate Shaft Speed Sensor C Circuit No Signal

Check engine lightOn
EmissionsRelevant
Drive cycleRequired
Limp modePossible

P2751 is reserved for a sensor C that sends no pulses at all while the vehicle is demonstrably under way. No manufacturer documents P2751 publicly. For comparison, Ford's intermediate shaft logic treats a reading below 250 rpm as missing – for 2.5 s on the 2024 ten-speeds, for 5 s on the 2012 transmissions – and it only runs once turbine and output speeds prove that the gearbox is turning. Unlike the circuit code P2749, nothing has to be electrically wrong: a sensor whose electronics have quit, or a toothed wheel that has shifted away from the sensor face, also ends in silence. Expect the module to switch to a substitute speed or a limp-home gear, and confirm on a test drive with the scan tool showing sensor C.

Likely causes

Sensor C electronics failed
Open circuit or disconnected plug
Reluctor missing, loose or too far from the sensor

Symptoms

  • Warning lamp during the drive
  • Limp-home gear or missing shifts

Repair estimate

DifficultyHardWorkshop job
Parts and labour€150–1,500
Time1–6 h

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

Parts involved

intermediate shaft speed sensor ctone wheel

Related codes

P2749P2750P2752P2747

References: law.cornell.edu, fordservicecontent.com, newtonnet.co.uk.