Code result

P271C

Park Pawl Position Sensor B Circuit Low

High severity

What it means

The redundant park pawl position sensor B reads below the lower diagnostic threshold. Redundancy for the park-engagement check is lost.

Is it safe to drive?

No — stop driving

This code points to a problem that can cause damage or affect safety. Avoid driving and have the vehicle diagnosed promptly.

Most likely causes

  • Internal short in sensor element

    high

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

  • Signal wire shorted to ground

    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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