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Diagnostic trouble code P0327 Powertrain
Unverified Powertrain (P) Ignition / Knock

Knock sensor 1 circuit low input

The knock sensor circuit reads too low.

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What P0327 means

The knock sensor circuit reads too low.

Symptoms you may notice

  • Check engine light
  • Loss of performance

Possible causes

  1. Faulty knock sensor
  2. Wiring short
  3. Bad connector

Causes are listed from most to least likely for this code. Confirm the actual cause with the diagnostic checks before replacing parts.

Checks to run

  1. Test sensor signal
  2. Inspect wiring
  3. Check torque of sensor

Tools you may need

Multimeter
More Ignition / Knock codes →
P0325 Knock sensor circuit malfunction — Bank 1 Ignition / Knock Powertrain P0328 Knock sensor 1 circuit high input Ignition / Knock Powertrain

Verification and editorial notes

Unverified
Verification status
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Editorial status
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This page has not been technically verified yet. Confirm the diagnosis and measurements in the workshop manual for your vehicle.

Diagnose before replacing. A diagnostic trouble code identifies the circuit or system the control unit flagged. It does not prove that a particular part has failed. Confirm the cause with the measurements and checks above, and follow the workshop manual for your exact engine before replacing parts or clearing codes.

Keep diagnosing

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