Powertrain, generic · Hybrid propulsion

P0C2F Internal Control Module Drive Motor/Generator - Engine Speed Sensor Performance

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

P0C2F is an internal plausibility check of the hybrid control processor: the engine speed it reads through its own sensor path must match other speed information. In GM's Two-Mode truck tables (12OBDG06, 13OBDG06) the HCP compares its SPI-sensed engine speed with the calculated transmission input speed and with the engine speed received over CAN; a deviation beyond 250 rpm above 1500 rpm, with a wider band at lower speed, in 160 of 320 samples sets it as Type A, MIL after one trip. Ford uses it on the 2021–2023 Mustang Mach-E as P0C2F:92 in the secondary OBD module C, paired with a 1 Pedal Drive fault message; bulletin 24-2187 fixes it by reprogramming the powertrain modules. Real sensor circuit faults have their own codes.

Likely causes

Control module software flagging the comparison falsely (Ford Mach-E, fixed by reprogramming)
Speed signals disagree because of a faulty input or a disturbed CAN signal
Internal fault of the hybrid control module

Symptoms

  • MIL or hybrid system warning
  • One pedal drive or regenerative functions switched off (Ford Mach-E)
  • Reduced hybrid assist or limited power

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€80–1,500
Time0.5–4 h

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

Parts involved

hybrid control moduledrive motor speed sensor

Related codes

P0335P0336P0725P0A3FP0C1A

References: gsi.ext.gm.com, gsi.ext.gm.com, static.nhtsa.gov, static.nhtsa.gov.