Hours: 07–23 daily

TuningBot DTC Database · v4.37.14

P2639 Torque management, feedback signal A - signal low

Generic (OBD-II) interpretation in the TuningBot DTC database.

P · PowertrainEngineOBD2

What P2639 means

P2639
Torque management, feedback signal A - signal low Generic · engine Data confidence 78%

The control module detected that the Torque management, feedback signal A signal stayed below the expected range.

Possible causes

  • Wiring short to ground
  • ECM
  • TCM

Related and nearby codes

How to read P2639

P

Powertrain: engine, transmission and driveline systems.

2

Generic SAE-standard code: same meaning on every make.

639

Specific fault index within the subsystem.

Frequently asked questions about P2639

What does P2639 mean?

Torque management, feedback signal A - signal low. The control module detected that the Torque management, feedback signal A signal stayed below the expected range.

Is P2639 generic or manufacturer-specific?

P2639 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P2639 at file level?

If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry and, where the ECU needs it, corrects the checksum too. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.

Other file services

ECU tuningDyno-tested results by model and engine See the results →

← Search the full DTC database