B1902 Scion Code - Short to Ground 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
- B1902 Scion indicates Short to Ground 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 B1902 Scion Description
What are the Possible Causes of the DTC B1902 Scion?
- 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 B1902 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 B1902 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 B1902 Scion Code
1. What does OBDII code B1902 mean on a Scion?
Code B1902 indicates a "Short to Ground in Front Pretensioner Squib Right Circuit," meaning there is an electrical issue in the passenger-side seatbelt pretensioner circuit.
2. What are the symptoms of code B1902 in a Scion?
Common symptoms include the airbag warning light illuminating on the dashboard and the potential failure of the passenger-side seatbelt pretensioner during a crash.
3. What causes the B1902 code to appear?
This code is typically caused by damaged wiring, a short to ground in the pretensioner circuit, a faulty seatbelt pretensioner, or a defective airbag control module.
4. Can I still drive my vehicle with the B1902 code active?
While the vehicle may still drive normally, it is unsafe as the airbag system and seatbelt pretensioner might not function properly in an accident.
5. How do I diagnose the B1902 code in my Scion?
Diagnosis involves inspecting the wiring and connectors for damage or shorts, testing the seatbelt pretensioner resistance, and verifying the airbag control module functionality.
6. What tools are needed to repair the B1902 code?
You may need an OBDII scanner, a multimeter for electrical testing, and possibly specialized tools to access and replace the seatbelt pretensioner if necessary.
7. How much does it cost to fix code B1902 on a Scion?
Repairs could range from $50 to $400 or more, depending on whether wiring needs repair or the seatbelt pretensioner or airbag module requires replacement.
8. Can clearing the B1902 code fix the problem?
Clearing the code without addressing the underlying issue will not fix the problem; the code will likely reappear if the fault persists.
9. Is the B1902 code covered under warranty?
Depending on your Scion's age and mileage, the seatbelt system might be covered under a federally mandated safety warranty. Check with your dealer for details.
10. How do I prevent the B1902 code from reoccurring?
Regularly inspect seatbelt pretensioner wiring and connectors for wear or damage, and address any airbag system issues promptly to prevent future faults.
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