AutoCodes – Toyota – B2238 Toyota

B2238 Toyota Code - Rear Left Center Sensor Malfunction

Quick Answer

The No. Common causes include Faulty Rear Left Center Sensor, Rear Left Center Sensor harness is open or shorted, Rear Left 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: B2238 Toyota indicates Rear Left Center Sensor Malfunction.
Common causes: Common causes include Faulty Rear Left Center Sensor, Rear Left Center Sensor harness is open or shorted, Rear Left 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 1,124

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 B2238 Toyota Description

The No. 3 Ultrasonic Sensor (Rear Left Center Sensor) is installed on the front bumper. The Clearance Warning ECU detects obstacles based on signals received from the Rear Left Center Sensor. If the Rear Left 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 Left Center Sensor).

OBDII Code B2238 Toyota - Rear Left Center Sensor Malfunction - AutoCodes.com — B2238 Toyota Code - Rear Left Center Sensor Malfunction

What does this mean?

What are the Possible Causes of the DTC B2238 Toyota?

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

How to Fix the DTC B2238 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 B2238 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 B2238 Toyota code?

Need more information on how to fix the B2238 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 B2238 Toyota Code

1. What are the common symptoms of OBDII code B2238 Toyota (Rear Left Center Sensor Malfunction)?

The common symptoms include the rear left center sensor not functioning properly, leading to issues with the vehicle's parking assist system and potential difficulty in parking.

2. What are the possible causes of the B2238 error code in a Toyota?

The B2238 code typically indicates a malfunction in the rear left center sensor, which could be caused by sensor damage, wiring issues, or a faulty control module.

3. How can I diagnose the B2238 Toyota error code?

Diagnosing the B2238 code involves using an OBDII scanner to retrieve the specific code, inspecting the rear left center sensor and its wiring for damage, and testing the sensor's functionality.

4. Can I drive my Toyota with the B2238 error code?

While it may be possible to drive the vehicle with the B2238 code, it is recommended to address the issue promptly to ensure the proper functioning of the parking assist system.

5. How can I repair the B2238 Toyota error code?

Repairing the B2238 code may involve replacing the rear left center sensor, repairing any damaged wiring, or reprogramming the control module to resolve the malfunction.

6. Is it possible to reset the B2238 error code without repairs?

Resetting the B2238 code without addressing the underlying issue may temporarily clear the code, but the malfunction is likely to reoccur until the sensor or related components are repaired or replaced.

7. Can weather conditions affect the B2238 error code in a Toyota?

Extreme weather conditions or exposure to moisture can potentially impact the rear left center sensor's performance and trigger the B2238 code. It is essential to keep the sensor and its connections dry and protected.

8. How much does it typically cost to repair the B2238 error code in a Toyota?

The cost of repairing the B2238 code can vary depending on the extent of the damage, the need for replacement parts, and labor costs. It is advisable to consult a professional mechanic for an accurate estimate.

9. Will the B2238 error code cause any other issues in my Toyota?

While the B2238 code primarily relates to the rear left center sensor malfunction, ignoring the issue could potentially lead to problems with the parking assist system and affect the vehicle's overall safety and convenience features.

10. How can I prevent the B2238 error code from occurring in the future?

Regularly inspecting and maintaining the parking assist sensors, keeping them clean and free of debris, and addressing any issues promptly can help prevent the recurrence of the B2238 error code in your Toyota.