AutoCodes – Subaru – P0332 Subaru

P0332 Subaru Code - Knock Sensor 2 Circuit Low Input Bank 1 Or Single Sensor

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 Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means: P0332 Subaru indicates Knock Sensor 2 Circuit Low Input Bank 1 Or Single Sensor.
Common causes: Common causes include Faulty knock sensor, Knock sensor circuit poor electrical connection, Knock sensor harness is open or shorted.
Severity: Moderate - service should be scheduled soon.
Can I drive?: The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

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Code Popularity 14,407

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

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

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0332 Subaru 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 P0332 Subaru - Knock Sensor 2 Circuit Low Input Bank 1 Or Single Sensor - AutoCodes.com — P0332 Subaru Code - Knock Sensor 2 Circuit Low Input Bank 1 Or Single Sensor

What does this mean?

What are the Possible Causes of the DTC P0332 Subaru?

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 P0332 Subaru?

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 P0332 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 P0332 Subaru 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 P0332 Subaru code?

Need more information on how to fix the P0332 Subaru 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 P0332 Subaru Code

1. What are common symptoms of the OBDII code P0332 in a Subaru related to Knock Sensor 2 Circuit Low Input Bank 1 Or Single Sensor?

- Common symptoms include engine pinging or knocking noises, reduced engine performance, and illuminated Check Engine light.

2. What are the possible causes of the P0332 code in a Subaru?

- The code P0332 in a Subaru is often caused by a faulty knock sensor, damaged wiring or connectors, engine mechanical problems, or a failed Engine Control Module (ECM).

3. How can I diagnose the P0332 code in my Subaru?

- Diagnosing the P0332 code may involve using a scan tool to retrieve the code, testing the knock sensor and its wiring for continuity and proper voltage, and checking for any visible damage to the sensor or its connections.

4. Can I continue driving my Subaru with the P0332 code?

- It is not recommended to continue driving your Subaru with the P0332 code present, as it can lead to engine damage or poor performance. It's best to address the issue promptly.

5. How do I repair the P0332 code in my Subaru?

- Repairing the P0332 code in a Subaru may involve replacing the knock sensor, repairing damaged wiring or connectors, addressing any underlying engine issues, or resetting the ECM after the repair.

6. Are there any tips to prevent the P0332 code from recurring in my Subaru?

- To prevent the P0332 code from recurring, it's important to follow the manufacturer's recommended maintenance schedule, use high-quality fuel, and address any engine performance issues promptly.

7. Can a DIY enthusiast fix the P0332 code in a Subaru?

- Depending on their skill level and access to tools, a DIY enthusiast may be able to diagnose and repair the P0332 code in a Subaru. However, complex issues may require professional assistance.

8. How much does it typically cost to repair the P0332 code in a Subaru?

- The cost of repairing the P0332 code in a Subaru can vary depending on the specific issue, parts needed, and labor rates. It's advisable to obtain quotes from reputable mechanics or dealerships.

9. Will resetting the Check Engine light resolve the P0332 code in my Subaru?

- Simply resetting the Check Engine light without addressing the underlying issue causing the P0332 code will not resolve the problem. It's important to diagnose and repair the root cause of the code.

10. Does the P0332 code in a Subaru pose any serious risks if left unresolved?

- Leaving the P0332 code unresolved in a Subaru can potentially lead to engine damage, reduced fuel efficiency, and poor performance. It's best to address the issue promptly to avoid further complications.