AutoCodes – Toyota – B2239 Toyota

B2239 Toyota Code - Rear Right Center Sensor Malfunction

Quick Answer

The No. Common causes include Faulty Rear Right Center Sensor, Rear Right Center Sensor harness is open or shorted, Rear Right Center 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: B2239 Toyota indicates Rear Right Center Sensor Malfunction.
Common causes: Common causes include Faulty Rear Right Center Sensor, Rear Right Center Sensor harness is open or shorted, Rear Right Center 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 1,108

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 Oct 09, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2239 Toyota Description

The No. 3 Ultrasonic Sensor (Rear Right Center Sensor) is installed on the front bumper. The Clearance Warning ECU detects obstacles based on signals received from the Rear Right Center Sensor. If the Rear Right Center Sensor circuit has an open, short or other malfunction, it will not function normally. The Diagnostic Trouble Code (DTC) sets if a malfunction of No. 3 Ultrasonic Sensor (Rear Right Center Sensor).

OBDII Code B2239 Toyota - Rear Right Center Sensor Malfunction - AutoCodes.com — B2239 Toyota Code - Rear Right Center Sensor Malfunction

What does this mean?

What are the Possible Causes of the DTC B2239 Toyota?

Faulty Rear Right Center Sensor
Rear Right Center Sensor harness is open or shorted
Rear Right Center Sensor circuit poor electrical connection
Faulty Clearance Warning ECU

How to Fix the DTC B2239 Toyota?

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 B2239 Toyota 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 B2239 Toyota code?

Need more information on how to fix the B2239 Toyota 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 B2239 Toyota Code

1. What are common symptoms of OBDII code B2239 in a Toyota related to the Rear Right Center Sensor Malfunction?

- Common symptoms include the malfunction indicator light (MIL) illuminating on the dashboard, parking assist system errors, and issues with the rear right center sensor's functionality.

2. What can cause the Rear Right Center Sensor Malfunction (B2239) in a Toyota?

- Causes can include sensor wiring issues, sensor damage or failure, water intrusion, corrosion, or electronic control unit (ECU) problems within the parking assist system.

3. How can I diagnose the Rear Right Center Sensor Malfunction (B2239) in my Toyota?

- Diagnosis involves using an OBDII scanner to retrieve the specific trouble code, visually inspecting the sensor and its wiring for damage, and conducting tests to determine if the sensor is functioning properly.

4. Can I still drive my Toyota with OBDII code B2239 indicating a Rear Right Center Sensor Malfunction?

- While it may be safe to drive, it is recommended to address the issue promptly to ensure the parking assist system functions correctly and to prevent potential accidents or damage.

5. Is it possible to reset or clear the OBDII code B2239 for the Rear Right Center Sensor Malfunction in a Toyota?

- Clearing the code with an OBDII scanner may temporarily turn off the MIL, but if the underlying issue is not fixed, the code is likely to reappear.

6. How can I repair the Rear Right Center Sensor Malfunction (B2239) in my Toyota?

- Repair options may include replacing the malfunctioning sensor, repairing damaged wiring, addressing ECU issues, or seeking professional assistance for a more thorough diagnosis and repair.

7. Are there any DIY tips for troubleshooting OBDII code B2239 related to the Rear Right Center Sensor Malfunction in a Toyota?

- DIY tips include checking sensor connections, inspecting for physical damage or corrosion, verifying power supply to the sensor, and ensuring no obstructions are affecting sensor performance.

8. Will fixing the Rear Right Center Sensor Malfunction (B2239) in my Toyota require specialized tools or equipment?

- Depending on the exact cause, repairs may require basic hand tools, an OBDII scanner for diagnosis, and potential access to wiring diagrams or technical information specific to the parking assist system.

9. How do I prevent OBDII code B2239 from recurring after fixing the Rear Right Center Sensor Malfunction in my Toyota?

- To prevent a recurrence, ensure proper installation of replacement sensors, address any underlying wiring issues, keep sensors clean and free of debris, and periodically check for signs of water intrusion.