Code result

P2D93

Starter/Generator Phase Y Current Sensor Circuit High

High severity

What it means

The current sensor for starter/generator phase Y reports voltage above the expected window. Indicates short to B+ or sensor offset drifted high.

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

  • Signal wire shorted to B+

    high

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

  • Sensor offset drifted high

    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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