Code result

P2544

Torque Management Request Input Signal A

High severity

What it means

The ECU detects an invalid torque-management request signal A from another control unit (e.g. transmission, ESP, ABS) on the CAN bus. Cooperative torque control cannot be performed as expected.

Is it safe to drive?

No — stop driving

This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.

Most likely causes

  • CAN communication error

    high

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

  • Fault in requesting module

    medium

    A plausible cause — test and verify before replacing parts.

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