P2639
Torque Management Feedback Signal A Low
P2639 is an OBD-II diagnostic trouble code meaning: Torque Management Feedback Signal A Low. Common causes: open or short circuit in feedback circuit, poor contact in wiring connectors. Estimated repair cost: $17–89.
Symptoms
- Reduced engine power
- Rough engine operation
- Gear shifting problems
- Check Engine light comes on
- Deterioration of vehicle dynamics
Causes
- Open or short circuit in feedback circuit
- Poor contact in wiring connectors
- Torque sensor malfunction
- Transmission control module (TCM) problems
- Engine control module (ECM) malfunction
How to Fix
- Check the integrity of the wiring in the feedback circuit
- Inspect and clean all electrical connections
- Check the functionality of the torque sensor
- Scan the TCM and ECM for errors
- If necessary, replace faulty components
Related codes
Error P2639 by Vehicle Brand
FAQ
What does the P2639 code mean?
P2639 is an OBD-II diagnostic trouble code that indicates: Torque Management Feedback Signal A Low
What causes a P2639 error code?
The most common causes of P2639 include: Open or short circuit in feedback circuit; Poor contact in wiring connectors; Torque sensor malfunction; Transmission control module (TCM) problems.
How do I fix a P2639 diagnostic trouble code?
To fix P2639: Check the integrity of the wiring in the feedback circuit. Inspect and clean all electrical connections. Check the functionality of the torque sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2639?
Limited driving only, diagnose soon
How much does it cost to fix P2639?
The estimated repair cost for P2639 is $17–89. Actual cost depends on your vehicle, location, and labor rates.
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