Code result

P0333

Knock Sensor 2 Circuit High Input

High severity

What it means

The bank 2 knock sensor signal is above the expected voltage range. Typically caused by a short to supply voltage or an internal sensor fault.

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

  • Signal wire shorted to supply

    high

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

  • Knock sensor failed

    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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