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Engine-Codes – Generic – B0955:18

B0955:18 Code - Parking Assist Front Sensor Left Middle Circuit Low Signal Amplitude

Quick Answer

The B0955:18 diagnostic trouble code (DTC) indicates a problem with the Parking Assist Front Sensor Left Middle Circuit Low Signal Amplitude. Common causes include Faulty front left middle parking sensor, Wiring or connection issues in the sensor circuit, Corrosion or damage to the sensor or its mounting. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means
B0955:18 indicates Parking Assist Front Sensor Left Middle Circuit Low Signal Amplitude.
Common causes
Common causes include Faulty front left middle parking sensor, Wiring or connection issues in the sensor circuit, Corrosion or damage to the sensor or its mounting.
Severity
Low - monitor the vehicle and repair when practical.
Can I drive?
The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code B0955:18 Description

The B0955:18 diagnostic trouble code (DTC) indicates a problem with the Parking Assist Front Sensor Left Middle Circuit Low Signal Amplitude. This code is specific to vehicles equipped with a parking assist system that utilizes sensors to detect obstacles in the vehicle's path while parking. The parking assist system helps the driver maneuver the vehicle into tight spaces by providing visual or audible alerts when objects are detected.

OBDII Code B0955:18 - Parking Assist Front Sensor Left Middle Circuit Low Signal Amplitude
B0955:18 Code - Parking Assist Front Sensor Left Middle Circuit Low Signal Amplitude

Common Causes of B0955:18

  1. Faulty front left middle parking sensor.
  2. Wiring or connection issues in the sensor circuit.
  3. Corrosion or damage to the sensor or its mounting.
  4. Electronic control module (ECM) malfunction affecting sensor signals.
  5. Environmental factors such as dirt, debris, or moisture affecting sensor performance.

Symptoms of B0955:18

  1. Parking assist system not providing accurate distance warnings.
  2. Inconsistent or intermittent alerts from the parking assist system.
  3. Parking assist system error message displayed on the dashboard.
  4. Difficulty maneuvering the vehicle in tight parking spaces.
  5. Increased risk of collisions while parking due to lack of sensor feedback.

How to Fix B0955:18

  1. Begin by visually inspecting the front left middle parking sensor for any visible damage or corrosion. Clean the sensor and its surroundings to ensure proper contact.
  2. Check the wiring and connections related to the sensor for any loose, damaged, or corroded components. Repair or replace as necessary.
  3. Use a multimeter to test the sensor's signal output and compare it to the manufacturer's specifications. Replace the sensor if the signal amplitude is outside the acceptable range.
  4. Clear the DTC from the vehicle's ECM using a diagnostic scan tool after completing the repairs.
  5. Test the parking assist system to verify that the sensor is now functioning correctly and providing accurate distance warnings.

Cost to Fix B0955:18

The typical repair costs for addressing a B0955:18 code can vary depending on the specific cause of the issue and the labor rates in your area. In general, replacing a faulty parking sensor and addressing wiring or connection problems can range from $150 to $400, including parts and labor. Keep in mind that diagnostic time and labor rates at auto repair shops can vary, so it's advisable to obtain quotes from multiple sources to ensure a more accurate estimate. Additionally, rates may be higher at dealerships or in metropolitan areas, while independent shops may offer more competitive pricing.

What does this mean?

Tech Notes for B0955:18

B0955:01 Parking Assist Front Sensor Left Middle Circuit Short to Battery

B0955:02 Parking Assist Front Sensor Left Middle Circuit Short to Ground

B0955:04 Parking Assist Front Sensor Left Middle Circuit Open

B0955:06 Parking Assist Front Sensor Left Middle Circuit Low Voltage/Open

B0955:08 Parking Assist Front Sensor Left Middle Circuit Performance - Signal Invalid

B0955:18 Parking Assist Front Sensor Left Middle Circuit Low Signal Amplitude

B0955:21 Parking Assist Front Sensor Left Middle Circuit Incorrect Period

B0955:22 Parking Assist Front Sensor Left Middle Circuit Too Short Low-Time

B0955:3A Parking Assist Front Sensor Left Middle Circuit Incorrect Component Installed

B0955:3B Parking Assist Front Sensor Left Middle Circuit Self-Test Malfunction

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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 B0955:18 Code

1. What are the common symptoms of OBDII code B0955:18?

- Common symptoms include issues with the front parking assist system, such as inaccurate or non-functional sensor readings.

2. What does the code B0955:18 indicate?

- The code indicates a low signal amplitude in the front left middle sensor of the parking assist system.

3. What are the possible causes of OBDII code B0955:18?

- Possible causes include damaged wiring, a faulty sensor, poor sensor alignment, or corrosion in the sensor connection.

4. How can I diagnose the issue related to code B0955:18?

- Diagnosis involves visually inspecting the sensor and its connections, testing the sensor's output signal, and checking for any physical damage or obstructions.

5. Can I still drive my vehicle with OBDII code B0955:18?

- Yes, you can still drive your vehicle with this code, but it's recommended to address the issue promptly to ensure proper functioning of the parking assist system.

6. How can I repair OBDII code B0955:18?

- Repair may involve repairing or replacing damaged wiring, realigning or replacing the sensor, or cleaning the sensor connections to resolve the low signal amplitude issue.

7. Do I need special tools to fix OBDII code B0955:18?

- Basic automotive tools such as a multimeter, wire crimpers, and diagnostic scan tool may be needed for diagnosing and repairing this code.

8. Will resetting the OBDII code B0955:18 make the issue go away?

- Resetting the code may temporarily clear the warning light, but it will not fix the underlying issue causing the low signal amplitude in the front left middle sensor.

9. Is it safe to ignore OBDII code B0955:18?

- Ignoring the code may result in the parking assist system not functioning correctly, leading to potential difficulties in parking and increased risk of accidents.

10. Can extreme weather conditions affect OBDII code B0955:18?

- Yes, extreme weather conditions such as heavy rain or snow can impact the sensor's performance and contribute to a low signal amplitude triggering the code.

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