Knock Sensor Circuit Malfunction
Table of contents
- Possible Causes
- How To Fix
- Tech Notes
- Cost To Diagnose
- When is the code detected
- Possible Symptoms
- Description
P0325 KIA Possible Causes
- Faulty Knock Sensor
- Knock Sensor circuit poor electrical connection
- Knock Sensor harness is open or shorted
- Faulty Engine Control Module (ECM)
How do I fix code P0325 KIA?
Check 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
User Submitted Video
Cost of diagnosing the P0325 KIA code
The cost of diagnosing the P0325 KIA code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
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 KIA Description
Engine Knocking is characterized by undesirable vibration and noise and can cause engine damage. The knock sensor (KS) is attached to the cylinder block and senses engine knocking. A knocking vibration from the cylinder block is applied as pressure to the piezoelectric element. The knock sensor (KS) detects vibration upon increase and decrease in engine RPM and generates a voltage based on this vibration. The Powertrain Control Module (PCM) controls the ignition timing based on the amplitude and frequency of the knock sensor signal. For example, if engine knocking occurs, the ignition timing is retarded to suppress it.
2003 Kia Sedona Knock Sensor Location