Powertrain, generic · Computer and auxiliary outputs

P062C Internal Control Module Vehicle Speed Performance

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modePossible

Electronic throttle systems run a second, independent calculation on the same processor (level 2, at Ford 'IPC – independent plausibility check') that recomputes driver demand, permitted and actual torque and their inputs, and compares them with the main software. Vehicle speed feeds torque monitoring through cruise control, speed limiter and gear-dependent limits. P062C means the module's internal cross-check of vehicle speed fails – main software and monitoring determine it separately, for example from transmission output or wheel speeds, and the values disagree. Ford sets it within 1 s with the wrench lamp; the check engine light came on only on generation 2 (2003–2007), since 2020 not at all. Cruise control and speed limiter are disabled, power may be limited. Ram 6.7 L Cummins (2019) fixed it by reprogramming. No threshold is published. Fix speed sensor codes P0500–P0503 first; a wrong tyre size or axle ratio in the module can also contribute.

Likely causes

Engine module software or calibration fault (update available)
Disturbed vehicle or output speed signal (sensor, reluctor, ABS CAN data)
Wrong tyre size or axle ratio configured in the module
Internal defect of the engine module

Symptoms

  • Wrench lamp (Ford), check engine light only on older Ford
  • Cruise control not working
  • Possibly reduced power

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€50–1,000
Time0.5–2.5 h

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

Parts involved

engine control modulevehicle speed sensor

Related codes

P0500P0501P0503P0608P061EP0722

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