Code result

P0C56

Drive Motor B Position Sensor Circuit A Range/Performance

High severity

What it means

The position sensor channel A of drive motor B reports a range/performance fault. Phase commutation feedback impaired on this channel.

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

  • Sensor mechanically offset

    high

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

  • Electrical noise on signal line

    medium

    A plausible cause — test and verify before replacing parts.

  • Sensor element aged beyond calibration window

    low

    Less common, but worth ruling out after the more likely causes.

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