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P0332 Toyota Code - Knock Sensor 2 Circuit Low Input

Quick Answer

The P0332 code for Toyota vehicles refers to the Knock Sensor 2 Circuit Low Input. Common causes include Faulty knock sensor, Damaged or corroded wiring harness, Loose or poor electrical connections. 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
P0332 Toyota indicates Knock Sensor 2 Circuit Low Input .
Common causes
Common causes include Faulty knock sensor, Damaged or corroded wiring harness, Loose or poor electrical connections.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P0332 Toyota Description

The P0332 code for Toyota vehicles refers to the Knock Sensor 2 Circuit Low Input. The knock sensor is a crucial component of the engine control system that detects abnormal engine noise or "knocking" caused by pre-ignition of the fuel mixture. When the knock sensor detects these abnormal engine noises, it sends a signal to the engine control module (ECM) to adjust the ignition timing and prevent engine damage.

OBDII Code P0332 Toyota - Knock Sensor 2 Circuit Low Input
P0332 Toyota Code - Knock Sensor 2 Circuit Low Input

Common Causes of P0332 Toyota

  1. Faulty knock sensor
  2. Damaged or corroded wiring harness
  3. Loose or poor electrical connections
  4. Engine overheating
  5. Engine mechanical issues causing abnormal noise

Symptoms of P0332 Toyota

  1. Engine knocking noise
  2. Decreased engine performance
  3. Poor fuel efficiency
  4. Illuminated check engine light
  5. Engine stalling or hesitation

How to Fix P0332 Toyota

  1. Diagnose the issue by using a scan tool to retrieve the fault code and inspect the knock sensor and wiring for any visible damage.
  2. Test the knock sensor using a multimeter to check for resistance and continuity.
  3. Replace the knock sensor if it is faulty, ensuring the new sensor is properly installed and connected.
  4. Check and repair any damaged wiring or electrical connections related to the knock sensor.
  5. Clear the fault code from the ECM and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0332 Toyota

The typical repair costs for resolving a P0332 code related to the Knock Sensor 2 Circuit Low Input can range from $150 to $300, including the cost of parts and labor. However, it's important to note that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Auto repair shops often charge between $80 and $150 per hour for labor, with rates potentially higher in metropolitan areas or at dealerships, and lower at independent shops. It's advisable to inquire about local rates to obtain a more accurate estimate for this repair.

What does this mean?

Tech Notes for P0332 Toyota

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.

When is the Code Detected?

An excessively low voltage from the sensor is sent to Engine Control Module (ECM)

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Information for Specific Toyota Models

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.

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