AutoCodes – Honda – P0328 2021 Honda CR-V

P0328 2021 Honda CR-V Code - Knock Sensor Circuit High Voltage

Quick Answer

The knock sensor is mounted on the engine block and detects engine knocking. Common causes include Faulty Knock Sensor, Knock Sensor harness is open or shorted, Knock Sensor circuit poor electrical connection. 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: P0328 2021 Honda CR-V indicates Knock Sensor Circuit High Voltage.
Common causes: Common causes include Faulty Knock Sensor, Knock Sensor harness is open or shorted, Knock Sensor circuit poor electrical connection.
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 266

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 17, 2023

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0328 2021 Honda CR-V Description

The knock sensor is mounted on the engine block and detects engine knocking. The vibrations caused by the knocking are converted into electrical signals through the piezo ceramic element. The Powertrain Control Module (PCM) controls the ignition timing based on the electrical signal. If the signal from the knock sensor is a specified voltage for a set time, the PCM detects a malfunction and stores a Diagnostic Trouble Code (DTC).

OBDII Code P0328 2021 Honda CR-V - Knock Sensor Circuit High Voltage - AutoCodes.com — P0328 2021 Honda CR-V Code - Knock Sensor Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0328 2021 Honda CR-V?

Faulty Knock Sensor
Knock Sensor harness is open or shorted
Knock Sensor circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P0328 2021 Honda CR-V?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0328 2021 Honda CR-V 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 P0328 2021 Honda CR-V code?

Need more information on how to fix the P0328 2021 Honda CR-V 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 P0328 2021 Honda CR-V Code

1. What does the OBDII code P0328 mean on a 2021 Honda CR-V?

P0328 indicates a "Knock Sensor Circuit High Voltage," meaning the knock sensor is detecting abnormally high voltage signals, which could be caused by an issue in the sensor or its circuit.

2. What are the symptoms of code P0328 in a 2021 Honda CR-V?

Common symptoms include reduced engine performance, poor fuel economy, engine knocking or pinging, and the Check Engine Light turning on.

3. What causes the P0328 code in a 2021 Honda CR-V?

Potential causes include a faulty knock sensor, damaged or corroded wiring or connectors, a short or open circuit in the knock sensor harness, or issues with the engine control module (ECM).

4. Can I drive my 2021 Honda CR-V with a P0328 code?

While the vehicle may still run, itâ€™s not recommended to drive for an extended period with this code, as it can lead to engine damage if knocking occurs.

5. How do I diagnose the P0328 code on a 2021 Honda CR-V?

Diagnosis typically involves using an OBDII scanner to confirm the code, inspecting the knock sensor and its wiring for damage, and testing the sensor's resistance with a multimeter.

6. How do I fix the P0328 code on a 2021 Honda CR-V?

Repairs may include replacing the knock sensor, repairing or replacing damaged wiring or connectors, clearing the code, and performing a test drive to ensure the issue is resolved.

7. How much does it cost to repair code P0328 on a 2021 Honda CR-V?

The cost depends on the exact issue, but replacing a knock sensor typically ranges from $150 to $400, including parts and labor.

8. Can a bad knock sensor damage my engine?

Yes, a faulty knock sensor may fail to detect engine knocking, which can result in severe engine damage over time if not addressed.

9. Will clearing the P0328 code fix my 2021 Honda CR-V?

Clearing the code may turn off the Check Engine Light temporarily, but the issue will likely return if the underlying problem isnâ€™t fixed.

10. Is the P0328 code common in the 2021 Honda CR-V?

This code is not extremely common but can occur due to sensor wear, wiring issues, or external factors such as engine vibrations or excessive heat. Regular maintenance can help prevent it.