P2639

Torque Management Feedback Signal A Low

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–89 (est.)

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

P2638 P2640 P2641