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B1B73 Mitsubishi Code - Left Side Satellite Acceleration Sensor 2 Internal

Quick Answer

The B1B73 diagnostic trouble code for Mitsubishi specifically refers to the Left Side Satellite Acceleration Sensor 2 Internal. Common causes include Faulty left side satellite acceleration sensor, Damaged wiring or connectors leading to the sensor, Corrosion or contamination affecting sensor operation. 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
B1B73 Mitsubishi indicates Left Side Satellite Acceleration Sensor 2 Internal.
Common causes
Common causes include Faulty left side satellite acceleration sensor, Damaged wiring or connectors leading to the sensor, Corrosion or contamination affecting sensor operation.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code B1B73 Mitsubishi Description

The B1B73 diagnostic trouble code for Mitsubishi specifically refers to the Left Side Satellite Acceleration Sensor 2 Internal. This code indicates that there is an issue with the internal components of the acceleration sensor located on the left side of the vehicle. The acceleration sensor is a crucial component of the vehicle's safety system, as it helps to detect sudden changes in speed or direction, allowing the vehicle's safety systems to react accordingly.

OBDII Code B1B73 Mitsubishi - Left Side Satellite Acceleration Sensor 2 Internal
B1B73 Mitsubishi Code - Left Side Satellite Acceleration Sensor 2 Internal

Common Causes of B1B73 Mitsubishi

  1. Faulty left side satellite acceleration sensor
  2. Damaged wiring or connectors leading to the sensor
  3. Corrosion or contamination affecting sensor operation
  4. Impact or collision that may have damaged the sensor

Symptoms of B1B73 Mitsubishi

  1. Illuminated airbag warning light on the dashboard
  2. Stability control or traction control system malfunctions
  3. Erratic or unpredictable behavior of safety systems
  4. Poor handling or stability while driving

How to Fix B1B73 Mitsubishi

  1. Begin by conducting a comprehensive diagnostic scan to confirm the B1B73 code and pinpoint the exact cause of the issue.
  2. Inspect the left side satellite acceleration sensor for any visible damage or signs of malfunction.
  3. Check the wiring and connectors leading to the sensor for any damage, corrosion, or loose connections.
  4. If the sensor is determined to be faulty, replace it with a new, OEM-approved sensor.
  5. Clear the diagnostic trouble codes, reset the vehicle's systems, and perform a test drive to ensure the issue has been resolved.

Cost to Fix B1B73 Mitsubishi

The typical repair costs for addressing the B1B73 code can vary depending on the specific cause of the issue and the cost of parts and labor. In general, replacing a left side satellite acceleration sensor can range from $200 to $500, including parts and labor. However, it is important to note that diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It is advisable to check with local auto repair shops for a more accurate estimate based on your specific situation.

When is the Code Detected?

This Diagnostic Trouble Code (DTC) sets when the Occupant Restraint Controller (ORC) receives notification of a self test failure within the impact sensor. Once set, this DTC is latched for the entire ignition cycle or until the clear faults scan tool command is used, depending on the specific condition that sets the DTC.

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Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service

  • Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
  • Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
  • Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
  • Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.

Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.

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 B1B73 Mitsubishi Code

1. What are the common symptoms of OBDII code B1B73 in a Mitsubishi related to the Left Side Satellite Acceleration Sensor 2 Internal?

The common symptoms include the illumination of the Check Engine Light, issues with the vehicle stability control system, and potential problems with the airbag system.

2. What are the possible causes of OBDII code B1B73 in a Mitsubishi indicating an issue with the Left Side Satellite Acceleration Sensor 2 Internal?

Possible causes may include a malfunction in the acceleration sensor itself, wiring or connector issues, or problems with the airbag control module.

3. How can I diagnose the OBDII code B1B73 in my Mitsubishi related to the Left Side Satellite Acceleration Sensor 2 Internal?

Diagnosis typically involves using a diagnostic scanner to retrieve the fault code, inspecting the sensor and its connections for any visible damage, and performing further testing as recommended by the manufacturer.

4. Is it safe to continue driving my Mitsubishi with the OBDII code B1B73 indicating an issue with the Left Side Satellite Acceleration Sensor 2 Internal?

It is not recommended to drive the vehicle with this code present, as it may affect the proper functioning of important safety systems like the airbags and stability control.

5. How can I reset the OBDII code B1B73 in my Mitsubishi related to the Left Side Satellite Acceleration Sensor 2 Internal?

Resetting the code can be done using an OBDII scanner or by disconnecting the car battery for a few minutes. However, it is crucial to address the underlying issue causing the code before resetting it.

6. Can I repair the OBDII code B1B73 issue related to the Left Side Satellite Acceleration Sensor 2 Internal myself?

While simple checks like inspecting connections can be done by DIY enthusiasts, diagnosing and repairing the root cause of the code may require specialized knowledge and tools best left to professional mechanics.

7. How much does it typically cost to repair the OBDII code B1B73 indicating a problem with the Left Side Satellite Acceleration Sensor 2 Internal in a Mitsubishi?

The cost of repair can vary depending on the exact cause of the issue, the extent of the damage, and labor rates in your area. It is advisable to get a diagnostic from a qualified technician for an accurate estimate.

8. Can a faulty Left Side Satellite Acceleration Sensor 2 Internal impact other systems in my Mitsubishi?

Yes, a malfunctioning sensor can affect the proper operation of related systems like the airbag system and vehicle stability control, potentially compromising safety in the event of an accident or loss of control.

9. Are there any preventive maintenance measures I can take to avoid encountering the OBDII code B1B73 issue with the Left Side Satellite Acceleration Sensor 2 Internal in my Mitsubishi?

Regular inspection of the sensor and its connections, as well as addressing any warning signs promptly, can help prevent issues with the Left Side Satellite Acceleration Sensor 2 Internal.

10. How long does it typically take to repair the OBDII code B1B73 related to the Left Side Satellite Acceleration Sensor 2 Internal in a Mitsubishi?

The repair time can vary based on the exact cause of the problem and the availability of parts. It is advisable to consult with a mechanic for a more accurate estimate of the repair duration.

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