P1376 – Knock Sensor Low Voltage (Nissan)

Description

The ECM detected an abnormally low voltage from the knock sensor.

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Symptoms

  • Poor acceleration
  • Rattling noise

Causes

  • Open circuit
  • Sensor failure
  • Wiring issue

Diagnosis

  • Check sensor resistance
  • Inspect wiring
  • Scan knock data

Repair

  • Repair wiring
  • Replace sensor