B1943 Scion Code - Short to Positive in Selectable Force Limiter Squib Right Circuit
Quick Answer
The Selectable Force Limiter 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) (Selectable Force Limiter 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
- B1943 Scion indicates Short to Positive in Selectable Force Limiter Squib Right Circuit.
- Common causes
- Common causes include Faulty Front Seat Outer Belt Assembly Right (RH) (Selectable Force Limiter 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 B1943 Scion Description
What are the Possible Causes of the DTC B1943 Scion?
- Faulty Front Seat Outer Belt Assembly Right (RH) (Selectable Force Limiter 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 B1943 Scion?
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 B1943 Scion 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 B1943 Scion Code
1. What does the OBDII code B1943 mean on a Scion?
B1943 indicates a "Short to Positive in Selectable Force Limiter Squib Right Circuit," which relates to a fault in the airbag system, specifically with the passenger-side seatbelt force limiter circuit.
2. What are the common symptoms of code B1943 in a Scion?
The most common symptoms include an illuminated airbag warning light on the dashboard and the airbag system being disabled until the issue is resolved.
3. What causes the B1943 code to appear?
Potential causes include damaged wiring, a short to positive in the force limiter circuit, a faulty seatbelt pretensioner, or a malfunctioning airbag control module.
4. Is it safe to drive with the B1943 code active?
It is not recommended to drive with this code active, as it indicates an issue with the airbag system, which may fail to deploy properly in an accident.
5. How do you diagnose the B1943 code in a Scion?
Diagnosis involves using a scan tool to confirm the code, visually inspecting the wiring and connectors for damage, and testing the seatbelt pretensioner and airbag control module for faults.
6. Can a loose connector cause the B1943 code to trigger?
Yes, a loose or corroded connector in the force limiter squib circuit can cause the code to trigger.
7. How do you fix the B1943 code in a Scion?
Repairs may include repairing or replacing damaged wiring, securing loose connections, replacing the seatbelt pretensioner, or, in some cases, replacing the airbag control module.
8. What tools are needed to troubleshoot the B1943 code?
A scan tool capable of reading airbag codes, a multimeter for testing electrical components, and basic hand tools for accessing connectors and wiring are typically needed.
9. Can the B1943 code be cleared without repairs?
Clearing the code without addressing the underlying issue will not permanently resolve the problem and the code is likely to reappear.
10. How much does it cost to repair the B1943 code in a Scion?
Repair costs vary depending on the specific issue, but they may range from $100 for simple wiring fixes to over $500 if the seatbelt pretensioner or airbag control module needs replacement.
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