Error code
OBD2 P2639
OBD2P2639
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Torque Management Feedback Signal 'A' Low.
Severity
moderateCan drive, but performance issues may occur.
Summary
P2639 indicates that the torque management feedback signal A is low, which affects engine performance and fuel efficiency. This issue typically involves the ECM (Engine Control Module) or TCM (Transmission Control Module).
Common Causes
- Wiring short to ground
- Faulty ECM
- Faulty TCM
Fixes
FAQ
What does P2639 mean?
P2639 indicates a low feedback signal A in the torque management system, which can affect engine performance and fuel efficiency.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
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