P2639

Torque Management Feedback Signal "A" Low

DTC P2639, sometimes indicated as P263900 is an OBD diagnostic trouble code indicating a manufacturer-specific fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the causing torque management feedback signal "a" low.

  • P2639: Torque Management Feedback Signal "A" Low
  • P2639: Torque management, feedback signal A – signal low
  • P2639 00: Torque management, feedback signal A - signal low

DTC Trouble Code Search
Bulletins

Bulletins are notices put out by manufacturers in conjunction with the NHTSA to notify the public of manufacturing issues or changes.

  • 3061 - FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM
    CHEVROLET: Fuel gauge displays empty with diagnostic trouble code P1172 or P2639. *tt
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