Code result

P28C5

Clutch A Phase U-V-W Circuit High

High severity

What it means

The output stage for the clutch A BLDC motor reports a high phase voltage on at least one of the U/V/W phases. Short to B+ or interrupted load.

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

  • Phase wire shorted to B+

    high

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

  • Open motor winding

    medium

    A plausible cause — test and verify before replacing parts.

  • Connector pins corroded - high contact resistance

    low

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

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