AutoCodes – Mitsubishi – B1BC8 Mitsubishi

B1BC8 Mitsubishi Code - Passenger Seat Weight Sensor Performance

Quick Answer

While the CAN bus ignition status is in IGN-RUN, the module checks the sensor input ranges. Common causes include Faulty Passenger Seat Weight Sensor, Passenger Seat Weight Sensor harness is open or shorted, Passenger Seat Weight Sensor 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: B1BC8 Mitsubishi indicates Passenger Seat Weight Sensor Performance.
Common causes: Common causes include Faulty Passenger Seat Weight Sensor, Passenger Seat Weight Sensor harness is open or shorted, Passenger Seat Weight Sensor 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 636

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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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 B1BC8 Mitsubishi Description

While the CAN bus ignition status is in IGN-RUN, the module checks the sensor input ranges. This code will set if the Occupant Classification Module (OCM) detects the difference between 2 sensors is less than 3 A/D (15 mV) counts for 10 consecutive minutes while at least one sensor count is changing and greater than 8 A/D (40 mV) counts.

OBDII Code B1BC8 Mitsubishi - Passenger Seat Weight Sensor Performance - AutoCodes.com — B1BC8 Mitsubishi Code - Passenger Seat Weight Sensor Performance

What does this mean?

What are the Possible Causes of the DTC B1BC8 Mitsubishi?

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

How to Fix the DTC B1BC8 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 B1BC8 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 B1BC8 Mitsubishi code?

Need more information on how to fix the B1BC8 Mitsubishi code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1BC8 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 B1BC8 Mitsubishi Code

1. What are the common symptoms of OBDII code B1BC8 in a Mitsubishi related to the Passenger Seat Weight Sensor Performance?

- The most common symptoms include the airbag warning light illuminated on the dashboard and potentially a message indicating an issue with the passenger airbag system.

2. What can cause the OBDII code B1BC8 related to the Passenger Seat Weight Sensor Performance in a Mitsubishi?

- The code B1BC8 is often triggered by a faulty passenger seat weight sensor or issues with the sensor's wiring, such as a loose connection or damaged wires.

3. How can I diagnose the OBDII code B1BC8 in my Mitsubishi?

- Diagnosing the code usually involves using a professional OBDII scanner to read the specific fault codes related to the passenger seat weight sensor performance and conducting a visual inspection of the sensor and its wiring.

4. Can I repair the OBDII code B1BC8 issue in my Mitsubishi myself?

- While some basic troubleshooting steps can be taken, resolving the B1BC8 code related to the passenger seat weight sensor performance often requires specialized knowledge and tools, so it is recommended to seek professional help.

5. Is it safe to drive my Mitsubishi with the OBDII code B1BC8 related to the Passenger Seat Weight Sensor Performance?

- It is not advisable to drive the vehicle with this code present, as it indicates a potential issue with the passenger airbag system, which may compromise safety in the event of an accident.

6. Are there any temporary fixes for the OBDII code B1BC8 in a Mitsubishi?

- Temporary fixes such as resetting the airbag system by disconnecting the battery may temporarily clear the code, but it is important to address the underlying issue to ensure proper functionality.

7. How much does it typically cost to repair the OBDII code B1BC8 in a Mitsubishi?

- The cost of repair can vary depending on the specific cause of the issue, but it may involve replacing the passenger seat weight sensor or repairing the sensor wiring, which can range from a few hundred to over a thousand dollars.

8. Can the OBDII code B1BC8 related to the Passenger Seat Weight Sensor Performance affect vehicle performance?

- The B1BC8 code itself does not directly impact vehicle performance, but it signifies a potential safety issue with the airbag system, which is crucial for passenger safety in the event of a collision.

9. How long does it typically take to repair the OBDII code B1BC8 in a Mitsubishi?

- The repair time can vary depending on the exact cause of the issue and the availability of parts, but it may take a few hours to a full day to diagnose and fix the problem.

10. Will resetting the OBDII code B1BC8 in my Mitsubishi make it go away permanently?

- Resetting the code may clear it temporarily, but if the underlying issue with the passenger seat weight sensor performance is not addressed, the code is likely to reappear. It is essential to diagnose and repair the root cause of the problem to prevent it from coming back.