Powertrain, generic (extended)

P26C3 Internal Control Module Transmission Range Sensor Performance

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modePossible

P26C3 comes from a second, independent checking layer inside the powertrain module: it recalculates the gear selector position (P-R-N-D) and logs a fault when it cannot confirm what the main signal path reports. Ford lists the code in its gasoline OBD summaries 2020–2024 as non-MIL; the 2024 edition splits it into sub-faults for range sensor A, range sensor B and the comparison of both. Ford special service message 47790 names P26C3 among the most frequent codes on 2013–2019 Fusion, MKZ and C-Max with the 2.0 L hybrid drive, caused by water or corrosion in several connectors. Faults in the sensor circuits themselves are covered by P0705, P2800 and P2805. Drivers usually notice a warning message or trouble selecting a gear.

Likely causes

Water ingress or corrosion in connectors of the range sensor or module wiring
Worn or misadjusted range sensor or selector giving inconsistent positions
Control module software fault, cured by a calibration update

Symptoms

  • Transmission or gear selector warning in the instrument cluster
  • Difficulty engaging a gear or leaving Park
  • Further codes such as P2800 or network faults stored at the same time

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€0–900
Time0.5–3 h

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

Parts involved

control moduleexternal range sensor

Related codes

P0705P2800P2805P26C4P060D

References: fordservicecontent.com, fordservicecontent.com, static.nhtsa.gov, law.cornell.edu.