1.5L I4 TurboFWDCVTgasturbo
4 active safety recalls on this vehicle — view recalls
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P1324moderate severityPowertrain

Knock Sensor Power Source Low Voltage

on 2021 Honda Accord 1.5L I4 Turbo · FWD

What this code means

Knock sensor power supply voltage is below minimum threshold.

Symptoms

  • CEL
  • Potential knock under load
  • Timing retarded as precaution
  • Reduced performance

Common causes

  • Low voltage supply
  • Damaged wiring
  • Poor connections
  • Faulty PCM

Diagnostic steps

  1. Test power supply voltage
  2. Inspect wiring
  3. Check connections
  4. Test PCM output

Repair notes

Repair power supply circuit.

Other Powertrain codes on this vehicle

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