B1920 Toyota Code - Short In Rear Pretensioner Squib RH Circuit
Quick Answer
The Rear Pretensioner Squib Right (RH) Circuit consists of the Center Airbag Sensor Assembly and the Rear Seat Outer Belt Assembly Right (RH). Common causes include Faulty Rear Seat Outer Belt Assembly Right (RH) (Rear Pretensioner Squib RH), Rear Seat Outer Belt Assembly Right (RH) harness is open or shorted, Rear Seat Outer Belt Assembly Right (RH) 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
- B1920 Toyota indicates Short In Rear Pretensioner Squib RH Circuit.
- Common causes
- Common causes include Faulty Rear Seat Outer Belt Assembly Right (RH) (Rear Pretensioner Squib RH), Rear Seat Outer Belt Assembly Right (RH) harness is open or shorted, Rear Seat Outer Belt Assembly Right (RH) 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 B1920 Toyota Description
What are the Possible Causes of the DTC B1920 Toyota?
- Faulty Rear Seat Outer Belt Assembly Right (RH) (Rear Pretensioner Squib RH)
- Rear Seat Outer Belt Assembly Right (RH) harness is open or shorted
- Rear Seat Outer Belt Assembly Right (RH) circuit poor electrical connection
- Faulty Center Airbag Sensor Assembly
How to Fix the DTC B1920 Toyota?
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 B1920 Toyota 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 B1920 Toyota Code
1. What are the common symptoms of OBDII code B1920 in a Toyota related to a Short In Rear Pretensioner Squib RH Circuit?
The common symptoms include an illuminated airbag warning light on the dashboard and potential issues with the vehicle's airbag system.
2. What causes the OBDII code B1920 to appear in a Toyota indicating a Short In Rear Pretensioner Squib RH Circuit?
The code B1920 typically appears due to a wiring fault or a short circuit in the rear pretensioner squib RH circuit of the airbag system.
3. How can I diagnose the OBDII code B1920 in my Toyota indicating a Short In Rear Pretensioner Squib RH Circuit?
Diagnosing this code usually involves inspecting the wiring harness, connectors, and components related to the rear pretensioner squib RH circuit for any visible damage or issues.
4. Is it safe to drive my Toyota with the OBDII code B1920 related to a Short In Rear Pretensioner Squib RH Circuit?
It is not recommended to drive the vehicle with this code present, as it may indicate a potential safety risk with the airbag system not functioning properly.
5. How can I repair the OBDII code B1920 in my Toyota indicating a Short In Rear Pretensioner Squib RH Circuit?
Repairing this code typically involves fixing the wiring fault or short circuit in the rear pretensioner squib RH circuit, which may require professional assistance.
6. Can I reset the OBDII code B1920 in my Toyota related to a Short In Rear Pretensioner Squib RH Circuit myself?
While you may be able to clear the code with an OBDII scanner, it is crucial to address the underlying issue causing the fault to ensure the safety of the airbag system.
7. Are there any common DIY tips for troubleshooting the OBDII code B1920 in a Toyota indicating a Short In Rear Pretensioner Squib RH Circuit?
DIY tips may include visually inspecting the wiring and connectors for any visible damage, checking for loose connections, and ensuring proper grounding of the components.
8. How can a professional mechanic help me with the OBDII code B1920 in my Toyota related to a Short In Rear Pretensioner Squib RH Circuit?
A professional mechanic can conduct a thorough diagnosis using specialized tools, repair the wiring fault or short circuit, and ensure the airbag system is functioning correctly.
9. What are the potential risks of ignoring the OBDII code B1920 indicating a Short In Rear Pretensioner Squib RH Circuit in my Toyota?
Ignoring this code may result in the airbag system not deploying properly in the event of a collision, potentially compromising the safety of the vehicle occupants.
10. Is it necessary to replace any components when dealing with the OBDII code B1920 related to a Short In Rear Pretensioner Squib RH Circuit in a Toyota?
In some cases, damaged wiring or components may need to be replaced to resolve the issue and ensure the proper functioning of the airbag system.
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