AutoCodes – Toyota – P0327 2008 Toyota Prius

P0327 2008 Toyota Prius Code - Knock Sensor 1 Circuit Low Input

Quick Answer

The knock sensor is attached to the cylinder block. Common causes include Faulty knock sensor, Knock sensor circuit poor electrical connection, Knock sensor harness is open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P0327 2008 Toyota Prius indicates Knock Sensor 1 Circuit Low Input.
Common causes: Common causes include Faulty knock sensor, Knock sensor circuit poor electrical connection, Knock sensor harness is open or shorted.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 4,299

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0327 2008 Toyota Prius Description

The knock sensor is attached to the cylinder block. It senses engine knocking using a piezoelectric element. 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).

OBDII Code P0327 2008 Toyota Prius - Knock Sensor 1 Circuit Low Input - AutoCodes.com — P0327 2008 Toyota Prius Code - Knock Sensor 1 Circuit Low Input

What does this mean?

What are the Possible Causes of the DTC P0327 2008 Toyota Prius?

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

How to Fix the DTC P0327 2008 Toyota Prius?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

The P0327 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 Code?

Labor: 1.0

To diagnose the P0327 2008 Toyota Prius code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0327 2008 Toyota Prius code?

Need more information on how to fix the P0327 2008 Toyota Prius code? Get Access to Factory Service Manuals

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0327 2008 Toyota Prius Code

1. What are the common symptoms of OBDII code P0327 in a 2008 Toyota Prius?

The common symptoms of code P0327 in a 2008 Toyota Prius include engine knocking noises, reduced engine performance, and possible illumination of the check engine light.

2. What does the OBDII code P0327 "Knock Sensor 1 Circuit Low Input" indicate in a 2008 Toyota Prius?

Code P0327 in a 2008 Toyota Prius indicates that the knock sensor 1 circuit is detecting a lower than normal voltage input, potentially signaling a problem with engine knocking or performance.

3. What are the possible causes of the OBDII code P0327 in a 2008 Toyota Prius?

Possible causes of code P0327 in a 2008 Toyota Prius include a faulty knock sensor, damaged wiring or connectors in the circuit, engine mechanical issues causing knocking, or a problem with the engine control module (ECM).

4. How can I diagnose the OBDII code P0327 in my 2008 Toyota Prius?

Diagnosing code P0327 in a 2008 Toyota Prius involves checking the knock sensor and its wiring for damage, testing the sensor's resistance, inspecting the engine for knocking issues, and using a scan tool to monitor sensor data.

5. Can I continue driving my 2008 Toyota Prius with OBDII code P0327?

It is not recommended to continue driving your 2008 Toyota Prius with code P0327, as it can lead to engine damage or poor performance. It's best to address the underlying issue promptly.

6. How can I repair OBDII code P0327 in my 2008 Toyota Prius?

Repairing code P0327 in a 2008 Toyota Prius typically involves replacing the knock sensor, repairing or replacing damaged wiring or connectors, addressing any engine knocking issues, and clearing the trouble codes.

7. Will resetting the check engine light resolve OBDII code P0327 in a 2008 Toyota Prius?

Simply resetting the check engine light will not resolve code P0327 in a 2008 Toyota Prius. The underlying issue causing the low input in the knock sensor circuit needs to be diagnosed and repaired.

8. How much does it cost to fix OBDII code P0327 in a 2008 Toyota Prius?

The cost to fix code P0327 in a 2008 Toyota Prius can vary depending on the exact cause of the issue, but it typically involves the cost of a new knock sensor, potential wiring repairs, and labor fees for diagnosis and repair.

9. Can a DIY enthusiast fix OBDII code P0327 in a 2008 Toyota Prius?

While some DIY enthusiasts may be able to tackle the repair for code P0327 in a 2008 Toyota Prius, it involves complex engine components and sensor systems, so professional assistance is recommended for accurate diagnosis and repair.

10. How often does OBDII code P0327 occur in a 2008 Toyota Prius?

Code P0327 in a 2008 Toyota Prius can occur due to various factors such as sensor wear, wiring issues, or engine problems. The frequency of occurrence depends on the vehicle's maintenance history and driving conditions.