Engine-Codes - Honda - P0325 2009 HONDA ACCORD

P0325 2009 HONDA ACCORD - Knock Sensor Circuit Malfunction

Repair Importance Level: 1/3
Repair Difficulty Level: 2/3  What is this?
Table of contents

P0325 2009 HONDA ACCORD Possible Causes

  • Faulty Knock Sensor
  • Knock Sensor circuit poor electrical connection
  • Knock Sensor harness is open or shorted
  • Faulty Engine Control Module (ECM)

How is the P0325 2009 HONDA ACCORD code repair?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Tech Notes

The P0325 code means that the Knock Sensor is not working properly. Problems with the knock sensor will not cause an engine performance problems. Replacing the knock sensor usually takes care of the problem.

What is the cost to diagnose the P0325 2009 HONDA ACCORD code

Labor: 1.0

The cost to diagnose the P0325 2009 HONDA ACCORD code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
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When is the code detected?

When an excessively low or high voltage from the sensor is sent to Engine Control Module (ECM)

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Possible Lack/Loss of Power

P0325 2009 HONDA ACCORD Meaning

The Knock Sensor (KS) senses engine knocking (also known as detonation or pinging) using a piezoelectric element. The sensor is attached to the cylinder block, cylinder head or intake manifold. A knocking vibration from the cylinder block is sensed as vibrational pressure. This pressure is converted into a voltage signal and sent to the Engine Control Module (ECM). The ECM uses this signal to retard the ignition timing and protect the engine from this damaging pre-ignition.

More Information

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