AutoCodes – Mitsubishi – B1BBB Mitsubishi

B1BBB Mitsubishi Code - Passenger Seat Weight Sensor Input Shorted Together

Quick Answer

While the CAN bus ignition status is in IGN-RUN. Common causes include Faulty Occupant Classification Module (OCM), Occupant Classification Module (OCM) harness is open or shorted, Occupant Classification Module (OCM) circuit poor electrical connection. 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: B1BBB Mitsubishi indicates Passenger Seat Weight Sensor Input Shorted Together.
Common causes: Common causes include Faulty Occupant Classification Module (OCM), Occupant Classification Module (OCM) harness is open or shorted, Occupant Classification Module (OCM) circuit poor electrical connection.
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.

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Code Popularity 872

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 23, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1BBB Mitsubishi Description

While the CAN bus ignition status is in IGN-RUN. This code will set if the Occupant Classification Module (OCM) detects any two sensors voltages below 20mV for 10 minutes while any other sensor is greater than 40mV. Note: 1 a/d count is equal to 5mV.

OBDII Code B1BBB Mitsubishi - Passenger Seat Weight Sensor Input Shorted Together - AutoCodes.com — B1BBB Mitsubishi Code - Passenger Seat Weight Sensor Input Shorted Together

What does this mean?

What are the Possible Causes of the DTC B1BBB Mitsubishi?

Faulty Occupant Classification Module (OCM)
Occupant Classification Module (OCM) harness is open or shorted
Occupant Classification Module (OCM) circuit poor electrical connection

How to Fix the DTC B1BBB Mitsubishi?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1BBB Mitsubishi 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 B1BBB Mitsubishi code?

Need more information on how to fix the B1BBB Mitsubishi code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1BBB Mitsubishi code diagnosed by a professional: Find a repair shop in your area

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 B1BBB Mitsubishi Code

1. What are the common symptoms of OBDII code B1BBB in a Mitsubishi related to the Passenger Seat Weight Sensor Input Shorted Together?

- The common symptoms include the airbag warning light staying illuminated on the dashboard and potential failure of the passenger airbag system.

2. What are the possible causes of the OBDII code B1BBB in a Mitsubishi indicating a Passenger Seat Weight Sensor Input Shorted Together?

- The code B1BBB typically indicates a short circuit between the passenger seat weight sensor and the airbag control module. This could be caused by damaged wiring, a faulty weight sensor, or a malfunctioning control module.

3. How can I diagnose the OBDII code B1BBB related to Passenger Seat Weight Sensor Input Shorted Together in my Mitsubishi?

- Diagnosing this code usually involves checking the wiring harness and connectors for any visible damage, testing the passenger seat weight sensor, and inspecting the airbag control module for faults using a diagnostic scanner.

4. Can driving with the OBDII code B1BBB in a Mitsubishi be dangerous?

- Driving with this code present can be risky as it may result in the passenger airbag not deploying in the event of a collision, potentially compromising the safety of the vehicle occupants.

5. How can I repair the OBDII code B1BBB related to Passenger Seat Weight Sensor Input Shorted Together in my Mitsubishi?

- Repairing this issue often involves repairing or replacing damaged wiring, recalibrating or replacing the passenger seat weight sensor, and resetting the airbag control module to clear the code.

6. Is it possible to reset the OBDII code B1BBB in a Mitsubishi without fixing the underlying issue?

- While you can clear the code temporarily by resetting the vehicle's computer, the underlying problem causing the code will persist until it is properly diagnosed and repaired.

7. Are there any safety precautions I should take when working on the Passenger Seat Weight Sensor Input Shorted Together issue in my Mitsubishi?

- It is advisable to disconnect the vehicle's battery before working on any airbag-related components to prevent accidental deployment and ensure safety during repairs.

8. Can a DIY enthusiast fix the OBDII code B1BBB related to Passenger Seat Weight Sensor Input Shorted Together in a Mitsubishi?

- While some basic troubleshooting steps can be performed by a DIY enthusiast, diagnosing and repairing issues related to the passenger airbag system may require specialized tools and expertise, so it is recommended to consult a professional mechanic for proper repair.

9. How long does it typically take to repair the OBDII code B1BBB in a Mitsubishi caused by the Passenger Seat Weight Sensor Input Shorted Together?

- The repair time can vary depending on the extent of the damage and the specific cause of the issue. It may take a few hours to a full day to diagnose and repair the problem completely.

10. Is it necessary to visit a dealership to address the OBDII code B1BBB related to Passenger Seat Weight Sensor Input Shorted Together in a Mitsubishi?

- While a dealership may have specialized knowledge and tools for Mitsubishi vehicles, independent auto repair shops with experience in airbag systems can also effectively diagnose and repair the issue, potentially at a lower cost.