B1900 Code - Short in Front Pretensioner Squib Right Circuit
Quick Answer
The Front Pretensioner Squib Right (RH) Circuit consists of the Center Airbag Sensor Assembly and Front Seat Outer Belt Assembly Right (RH). Common causes include Faulty Front Seat Outer Belt Assembly Right (RH) (Front Pretensioner Squib Right), Front Seat Outer Belt Assembly Right harness is open or shorted, Front Seat Outer Belt Assembly Right 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
- B1900 indicates Short in Front Pretensioner Squib Right Circuit.
- Common causes
- Common causes include Faulty Front Seat Outer Belt Assembly Right (RH) (Front Pretensioner Squib Right), Front Seat Outer Belt Assembly Right harness is open or shorted, Front Seat Outer Belt Assembly Right 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 B1900 Description
What are the Possible Causes of the DTC B1900?
- Faulty Front Seat Outer Belt Assembly Right (RH) (Front Pretensioner Squib Right)
- Front Seat Outer Belt Assembly Right harness is open or shorted
- Front Seat Outer Belt Assembly Right circuit poor electrical connection
- Faulty Center Airbag Sensor Assembly
How to Fix the DTC B1900?
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 B1900 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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Information for Specific Makes
- B1900 Acura — Communication Bus Line Error
- B1900 Honda — Communication Bus Line Error
- B1900 Lexus — Short in Front Pretensioner Squib Right Circuit
- B1900 Scion — Short in Front Pretensioner Squib Right Circuit
- B1900 Toyota — Short in Front Pretensioner Squib Right Circuit
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 B1900 Code
1. What are the common symptoms of OBDII code B1900 (Short in Front Pretensioner Squib Right Circuit)?
The common symptoms include the airbag warning light illuminating on the dashboard and potential non-deployment of the front right airbag during a collision.
2. What could cause the OBDII code B1900 to trigger?
The code B1900 is typically triggered by a short circuit in the wiring or connector of the front pretensioner squib on the right side.
3. How can I diagnose the issue related to OBDII code B1900?
Diagnosing the issue involves checking the wiring and connector of the front pretensioner squib on the right side for any damage, shorts, or loose connections using a multimeter.
4. Can I drive my vehicle with OBDII code B1900 present?
It is not recommended to drive the vehicle with the B1900 code present as it indicates a potential issue with the front right airbag system, which could compromise safety in the event of a collision.
5. What are the repair options for OBDII code B1900?
Repair options include repairing or replacing damaged wiring or connectors in the front pretensioner squib right circuit to resolve the short circuit issue.
6. Are there any safety concerns associated with OBDII code B1900?
Yes, there are safety concerns as the code B1900 indicates a fault in the front right airbag system, which could lead to the airbag not deploying properly in a collision.
7. Can I reset the OBDII code B1900 on my own?
While you can clear the code with an OBDII scanner, it is important to diagnose and repair the underlying issue causing the B1900 code to prevent it from reoccurring.
8. How much does it typically cost to repair OBDII code B1900?
The cost of repairing the B1900 code can vary depending on the extent of the damage and whether you choose to repair the wiring yourself or seek professional help from a mechanic.
9. Is the repair for OBDII code B1900 covered by warranty?
It depends on the warranty coverage of your vehicle. Some warranties may cover repairs related to airbag systems, but it's best to check with your manufacturer or warranty provider for specific details.
10. What are the long-term implications of ignoring OBDII code B1900?
Ignoring the B1900 code could pose serious safety risks in the event of a collision, as the front right airbag may not deploy correctly, potentially leading to increased injury risk for the occupants.
Discuss the causes and fixes for B1900 OBDII Code
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Every time there is a problem with the airbag system of your vehicle, the air bag warning light will come ON and a code(s) will be store in the air bag system control module. The warning light will stay ON until the problem is fixed. The first thing you need to do is having your dealer or an independent shop with a scanner read the code (s). With the code you will be able to have an idea what the problem is, and then you can continue by fixing the problem. Once the problem is fixed, you can just erase the light with a scanner or disconnecting the car battery.
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