Engine-CodesGeneric – B1B46

B1B46 Code - Right Rear Inner Parking Aid Sensor

Quick Answer

The B1B46 code indicates a problem with the right rear inner parking aid sensor in the vehicle. Common causes include Physical damage to the right rear inner parking aid sensor, Electrical faults in the sensor wiring or connections, Corrosion or moisture damage affecting the sensor's functionality. 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
B1B46 indicates Right Rear Inner Parking Aid Sensor.
Common causes
Common causes include Physical damage to the right rear inner parking aid sensor, Electrical faults in the sensor wiring or connections, Corrosion or moisture damage affecting the sensor's functionality.
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.
Table of contents Created and updated by William Orellana on Sep 08, 2024
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Code B1B46 Description

The B1B46 code indicates a problem with the right rear inner parking aid sensor in the vehicle. Parking aid sensors are part of the advanced driver assistance systems (ADAS) that help drivers navigate and park their vehicles safely. The parking aid sensors use ultrasonic or radar technology to detect objects around the vehicle and provide audible or visual alerts to the driver to prevent collisions. The right rear inner sensor specifically focuses on detecting obstacles on the right side of the vehicle towards the rear.

OBDII Code B1B46 - Right Rear Inner Parking Aid Sensor
B1B46 Code - Right Rear Inner Parking Aid Sensor

Common Causes of B1B46

  1. Physical damage to the right rear inner parking aid sensor.
  2. Electrical faults in the sensor wiring or connections.
  3. Corrosion or moisture damage affecting the sensor's functionality.
  4. Calibration errors in the parking aid system.
  5. Software glitches in the vehicle's ADAS system.

Symptoms of B1B46

  1. Lack of audible or visual parking aid warnings when reversing.
  2. Incorrect or inconsistent parking aid alerts while parking.
  3. Parking aid system error message on the vehicle's display.
  4. Difficulty in parking or maneuvering the vehicle in tight spaces.
  5. Unresponsive or erratic behavior of the parking aid system.

How to Fix B1B46

  1. Diagnose the specific cause of the B1B46 code using a diagnostic scan tool.
  2. Inspect the right rear inner parking aid sensor for physical damage or corrosion.
  3. Test the sensor's wiring and connections for continuity and proper voltage.
  4. Calibrate the parking aid system according to the manufacturer's specifications.
  5. Replace the right rear inner parking aid sensor if it is found to be faulty and cannot be repaired.

Cost to Fix B1B46

The typical repair costs for addressing the B1B46 code related to the right rear inner parking aid sensor can range from $200 to $500, including parts and labor. However, the actual cost may vary depending on the vehicle make and model, the specific diagnostic time required, and labor rates at the auto repair shop. It is recommended to obtain quotes from multiple reputable repair shops to get an accurate estimate for the repair.

Tech Notes for B1B46

B1B46:14 Right Rear Inner Parking Aid Sensor Circuit Short To Ground Or Open
B1B46:12 Right Rear Inner Parking Aid Sensor Circuit Short To Battery
B1B46:96 Right Rear Inner Parking Aid Sensor Component Internal Failure





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Code B1B46 Information for Specific Makes

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 B1B46 Code

1. What are the common symptoms of OBDII code B1B46 (Right Rear Inner Parking Aid Sensor)?

When this code is triggered, you may experience issues such as the right rear inner parking aid sensor not functioning properly or providing inaccurate readings.

2. What can cause the OBDII code B1B46 to appear for the Right Rear Inner Parking Aid Sensor?

Common causes of this code include sensor malfunctions, wiring issues, or physical damage to the right rear inner parking aid sensor.

3. How can I diagnose the OBDII code B1B46 related to the Right Rear Inner Parking Aid Sensor?

Diagnosing this code typically involves using a diagnostic scanner to retrieve the specific fault code, inspecting the sensor and its wiring for any visible damage, and testing the sensor's functionality.

4. Can I drive my vehicle with the OBDII code B1B46 for the Right Rear Inner Parking Aid Sensor?

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

5. Is it possible to reset the OBDII code B1B46 for the Right Rear Inner Parking Aid Sensor?

Resetting the code may temporarily clear the fault, but if the underlying issue is not addressed, the code is likely to reappear. It is important to diagnose and repair the root cause of the problem.

6. What are the repair options for resolving the OBDII code B1B46 related to the Right Rear Inner Parking Aid Sensor?

Repair options may include replacing the right rear inner parking aid sensor, repairing damaged wiring, or addressing any other issues identified during the diagnostic process.

7. Can a DIY enthusiast fix the OBDII code B1B46 for the Right Rear Inner Parking Aid Sensor?

Depending on your skill level and access to tools, you may be able to address this issue yourself by following repair guides or tutorials. However, if you are unsure, it is best to seek professional help.

8. How critical is it to address the OBDII code B1B46 for the Right Rear Inner Parking Aid Sensor?

While your vehicle may still be operational with this code present, ignoring it can lead to issues with the parking aid system and potentially affect safety while parking.

9. Are there any preventative measures to avoid the OBDII code B1B46 for the Right Rear Inner Parking Aid Sensor?

Regularly inspecting the parking aid sensors, maintaining the vehicle's wiring harness, and avoiding physical damage to the sensors can help prevent this code from appearing.

10. How long does it typically take to repair the OBDII code B1B46 related to the Right Rear Inner Parking Aid Sensor?

The repair time can vary depending on the specific issue causing the code, the availability of parts, and the repair process involved. It is advisable to consult a mechanic for a more accurate estimate.

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