AutoCodes – Toyota – P0327 2007 Toyota Highlander

P0327 2007 Toyota Highlander 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 2007 Toyota Highlander 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 2,917
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P0327 2007 Toyota Highlander 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 2007 Toyota Highlander - Knock Sensor 1 Circuit Low Input - AutoCodes.com
P0327 2007 Toyota Highlander Code - Knock Sensor 1 Circuit Low Input

What are the Possible Causes of the DTC P0327 2007 Toyota Highlander?

  • 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 2007 Toyota Highlander?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0327 2007 Toyota Highlander 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 2007 Toyota Highlander code?

Need more information on how to fix the P0327 2007 Toyota Highlander code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 2007 Toyota Highlander Code

1. What are the common symptoms of OBDII code P0327 in a 2007 Toyota Highlander?

- Common symptoms include poor engine performance, reduced fuel efficiency, engine knocking or pinging noises, and in some cases, the check engine light may illuminate.

2. What does the OBDII code P0327 for a 2007 Toyota Highlander indicate?

- The code P0327 indicates a low input signal from Knock Sensor 1 in the engine control module.

3. What are the possible causes of the Knock Sensor 1 Circuit Low Input code in a 2007 Toyota Highlander?

- Possible causes include a faulty knock sensor, damaged wiring or connectors in the knock sensor circuit, engine mechanical issues, or a problem with the engine control module.

4. How can I diagnose the cause of OBDII code P0327 in my 2007 Toyota Highlander?

- Diagnosis typically involves testing the knock sensor, inspecting the wiring and connectors for damage, checking for any engine mechanical problems, and using a scan tool to monitor sensor data.

5. Can I continue driving my 2007 Toyota Highlander with the P0327 code?

- It is not recommended to drive your vehicle with a malfunctioning knock sensor, as it can lead to engine damage over time and affect overall performance.

6. How can I repair the Knock Sensor 1 Circuit Low Input issue in my 2007 Toyota Highlander?

- Repair options may include replacing the knock sensor, repairing or replacing damaged wiring or connectors, addressing any engine mechanical issues, or reprogramming the engine control module.

7. Are there any DIY tips for fixing the P0327 code in a 2007 Toyota Highlander?

- While some components like the knock sensor can be replaced by DIY enthusiasts, it's recommended to consult a professional mechanic for accurate diagnosis and repair of the issue.

8. Will resetting the check engine light resolve the P0327 code in my 2007 Toyota Highlander?

- Resetting the check engine light may temporarily clear the code, but it will not fix the underlying issue causing the Knock Sensor 1 Circuit Low Input problem.

9. How much does it typically cost to repair the P0327 code in a 2007 Toyota Highlander?

- The cost of repair can vary depending on the exact cause of the code, but it may range from $200 to $500 or more, including parts and labor.

10. Is the P0327 code a common issue in 2007 Toyota Highlanders?

- While it may not be extremely common, issues with the knock sensor circuit can occur in 2007 Toyota Highlanders and should be addressed promptly to prevent further engine damage.

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