B1BB4 Mitsubishi Code - Passenger Air Bag Disable Switch Circuit High
Quick Answer
When the ignition is on, the Passenger Airbag MUX Switch Sense circuit supplies a 3 to 10 ms pulse every 100 ms across the On or Off switch resister to the Passenger Airbag MUX switch return circuit. Common causes include Faulty Passenger Air Bag Disable Switch, Passenger Air Bag Disable Switch harness is open or shorted, Passenger Air Bag Disable Switch 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
- B1BB4 Mitsubishi indicates Passenger Air Bag Disable Switch Circuit High.
- Common causes
- Common causes include Faulty Passenger Air Bag Disable Switch, Passenger Air Bag Disable Switch harness is open or shorted, Passenger Air Bag Disable Switch 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.
Code B1BB4 Mitsubishi Description
What are the Possible Causes of the DTC B1BB4 Mitsubishi?
- Faulty Passenger Air Bag Disable Switch
- Passenger Air Bag Disable Switch harness is open or shorted
- Passenger Air Bag Disable Switch circuit poor electrical connection
- Faulty Occupant Restraint Controller (ORC)
How to Fix the DTC B1BB4 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 B1BB4 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.
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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.
Frequently Asked Questions about B1BB4 Mitsubishi Code
1. What are the common symptoms of OBDII code B1BB4 in a Mitsubishi related to the Passenger Air Bag Disable Switch Circuit High?
- The common symptoms include the airbag warning light staying illuminated on the dashboard and the passenger airbag being disabled.
2. What are the possible causes of OBDII code B1BB4 in a Mitsubishi?
- Possible causes can be a faulty passenger air bag disable switch, damaged wiring in the circuit, or a problem with the airbag control module.
3. How can I diagnose the Passenger Air Bag Disable Switch Circuit High issue in my Mitsubishi?
- A diagnostic scan tool can help identify the specific fault code B1BB4. Additionally, visual inspection of the wiring and the disable switch can help pinpoint the issue.
4. Can I still drive my Mitsubishi safely with the OBDII code B1BB4 related to the Passenger Air Bag Disable Switch Circuit High?
- It is not advisable to continue driving the vehicle with this issue as the passenger airbag may not deploy in the event of an accident, affecting the safety of the occupants.
5. What is the typical repair process for fixing OBDII code B1BB4 in a Mitsubishi?
- The repair process usually involves checking and repairing any damaged wiring, replacing the faulty passenger airbag disable switch, or addressing any issues with the airbag control module.
6. Is it possible to reset the OBDII code B1BB4 in a Mitsubishi without fixing the underlying issue?
- While you can clear the fault code temporarily, the issue will likely persist until the root cause is identified and addressed.
7. How much does it cost to repair the Passenger Air Bag Disable Switch Circuit High problem in a Mitsubishi?
- The cost of repair can vary depending on the specific cause of the issue, but it may involve parts replacement and labor costs, which could range from moderate to significant.
8. Can I fix the OBDII code B1BB4 issue in my Mitsubishi at home, or do I need to take it to a professional mechanic?
- If you have experience working with automotive electrical systems and airbag components, you may be able to tackle the repair at home. Otherwise, it is recommended to seek assistance from a qualified mechanic.
9. Are there any safety precautions I should take when working on the Passenger Air Bag Disable Switch Circuit High issue in my Mitsubishi?
- It is crucial to disconnect the vehicle's battery before working on any airbag-related components to prevent accidental deployment and ensure personal safety.
10. Will fixing the OBDII code B1BB4 in my Mitsubishi require reprogramming or recalibration of any systems?
- Depending on the repair performed, recalibration or reprogramming of the airbag control module may be necessary to ensure proper functionality and system integrity.
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