AutoCodes – Generic – B0955:3B

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

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

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 773

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
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code B0955:3B 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 determines the sensor self-test has not successfully completed.

OBDII Code B0955:3B - Parking Assist Front Sensor Left Middle Circuit Self-Test Malfunction - AutoCodes.com — B0955:3B Code - Parking Assist Front Sensor Left Middle Circuit Self-Test Malfunction

What does this mean?

What are the Possible Causes of the DTC B0955:3B?

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 B0955:3B?

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 B0955:3B 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 B0955:3B code?

Need more information on how to fix the B0955:3B code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0955:3B code diagnosed by a professional: Find a repair shop in your area

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.