Code result

P2637

Torque Management Feedback Signal A

Moderate severity

What it means

The torque feedback signal A from the transmission or other torque user is missing or invalid. The engine controller cannot reduce torque on shift requests, which can cause harsh shifts.

Is it safe to drive?

Use caution

The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.

Most likely causes

  • Required CAN message not received in time

    high

    One of the most commonly reported causes for this code — check this first.

  • Source module reports an internal fault

    medium

    A plausible cause — test and verify before replacing parts.

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