AutoCodes – Generic – B0955:18

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

Quick Answer

The object sensors are 3-wire sensors that are used to determine the distance between the vehicle and an object of interest. Common causes include Faulty Parking Assist Front Sensor Left Middle, Parking Assist Front Sensor Left Middle harness is open or shorted, Parking Assist Front Sensor Left Middle circuit poor electrical connection. 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 Parking Assist Front Sensor Left Middle, Parking Assist Front Sensor Left Middle harness is open or shorted, Parking Assist Front Sensor Left Middle circuit poor electrical connection.
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.

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Code Popularity 298

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 01, 2023

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B0955:18 Description

The object sensors are 3-wire sensors that are used to determine the distance between the vehicle and an object of interest. The Parking Assist Control Module supplies 8 V to the object sensors via the 8 V reference circuit and provides ground via the low reference circuit. The Parking Assist Control Module triggers the sensors in a sequential loop. After each sensor transmits, the Parking Assist Control Module uses the sensor echo received through the signal circuit to calculate the distance and position of an object. The Diagnostic Trouble Code (DTC) will be set when the Parking Assist Control Module has determined the sensor signal voltage is too low.

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

What does this mean?

What are the Possible Causes of the DTC B0955:18?

Faulty Parking Assist Front Sensor Left Middle
Parking Assist Front Sensor Left Middle harness is open or shorted
Parking Assist Front Sensor Left Middle circuit poor electrical connection
Faulty Parking Assist Control Module

How to Fix the DTC B0955:18?

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 does this mean?

Code Tech Notes

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B0955:18 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.

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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.