AutoCodes – Mitsubishi – B1C48 Mitsubishi

B1C48 Mitsubishi Code - 1st Row Passenger Retractor Tensioner Circuit High

Quick Answer

When powered, the Occupant Restraint Controller (ORC) sends a test current to the squibs to verify the integrity of the squib and wiring. Common causes include Faulty 1st Row Passenger Retractor Tensioner, 1st Row Passenger Retractor Tensioner harness is open or shorted, 1st Row Passenger Retractor Tensioner 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: B1C48 Mitsubishi indicates 1st Row Passenger Retractor Tensioner Circuit High.
Common causes: Common causes include Faulty 1st Row Passenger Retractor Tensioner, 1st Row Passenger Retractor Tensioner harness is open or shorted, 1st Row Passenger Retractor Tensioner 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 564

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 26, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1C48 Mitsubishi Description

When powered, the Occupant Restraint Controller (ORC) sends a test current to the squibs to verify the integrity of the squib and wiring. These circuits are maintained in a floating configuration at the module (connected to neither power nor ground) as protection against inadvertent deployment. The use of the Supplemental Restraints System (SRS) Load Tool Adapter provides a test point as well as a method for opening the shorting bar connections within the harness connector. The ORC sends out a 40 mA diagnostic current on each squib voltage supply circuit at power up and every 500 ms thereafter while the ignition is in on. The module then monitors the data return wire to determine the state of the circuit.

OBDII Code B1C48 Mitsubishi - 1st Row Passenger Retractor Tensioner Circuit High - AutoCodes.com — B1C48 Mitsubishi Code - 1st Row Passenger Retractor Tensioner Circuit High

What does this mean?

What are the Possible Causes of the DTC B1C48 Mitsubishi?

Faulty 1st Row Passenger Retractor Tensioner
1st Row Passenger Retractor Tensioner harness is open or shorted
1st Row Passenger Retractor Tensioner circuit poor electrical connection
Faulty Occupant Restraint Controller (ORC)

How to Fix the DTC B1C48 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 B1C48 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 B1C48 Mitsubishi code?

Need more information on how to fix the B1C48 Mitsubishi code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1C48 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 B1C48 Mitsubishi Code

1. What are the common symptoms of OBDII code B1C48 Mitsubishi?

The common symptoms of OBDII code B1C48 for 1st Row Passenger Retractor Tensioner Circuit High may include the airbag warning light illuminating on the dashboard and potential issues with the passenger seatbelt retractor or tensioner.

2. What are the possible causes of OBDII code B1C48 Mitsubishi?

Possible causes of OBDII code B1C48 include a faulty passenger seatbelt retractor or tensioner, damaged wiring or connectors in the circuit, or a problem with the airbag control module.

3. How can I diagnose the source of OBDII code B1C48 Mitsubishi?

Diagnosing OBDII code B1C48 typically involves conducting a visual inspection of the seatbelt components, checking the wiring and connectors for damage, and using a diagnostic scanner to retrieve specific error codes for further troubleshooting.

4. Can I continue driving with OBDII code B1C48 Mitsubishi present?

It is not recommended to continue driving with OBDII code B1C48 active, as it indicates a potential issue with the passenger seatbelt system, which is crucial for occupant safety in the event of a collision.

5. How can I repair OBDII code B1C48 Mitsubishi?

Repairing OBDII code B1C48 may involve replacing the faulty passenger seatbelt retractor or tensioner, repairing damaged wiring or connectors, or resetting the airbag control module after addressing the underlying issue.

6. Is it safe to reset the OBDII code B1C48 Mitsubishi without fixing the problem?

Resetting the OBDII code without fixing the underlying issue is not recommended, as the problem with the passenger seatbelt system may still exist, compromising occupant safety in the vehicle.

7. Are there any DIY repair tips for OBDII code B1C48 Mitsubishi?

While basic inspections and visual checks can be done by DIY enthusiasts, repairing OBDII code B1C48 often requires specialized tools and expertise, so it is advisable to consult a professional mechanic for proper diagnosis and repair.

8. How much does it cost to fix OBDII code B1C48 Mitsubishi at a repair shop?

The cost of fixing OBDII code B1C48 can vary depending on the specific issue, parts needed for replacement, labor costs, and your location. It's best to get a quote from a reputable repair shop.

9. Can OBDII code B1C48 Mitsubishi affect the overall airbag system's functionality?

Yes, OBDII code B1C48 related to the passenger seatbelt retractor or tensioner can impact the overall airbag system's functionality, potentially affecting the deployment of airbags in the event of a collision.

10. How often should I have the airbag system checked to prevent OBDII code B1C48 Mitsubishi from occurring?

Regular maintenance checks, including inspections of the airbag system and related components, can help prevent issues like OBDII code B1C48. It's recommended to follow the manufacturer's maintenance schedule for optimal safety.