B1790 2017 Toyota RAV4 Code - Center Airbag Sensor Assembly Communication Circuit Malfunction
Quick Answer
The Center Airbag Sensor Assembly Communication Circuit consists of the Occupant Detection ECU and the Center Airbag Sensor Assembly. Common causes include Faulty Occupant Detection ECU, Occupant Detection ECU harness is open or shorted, Occupant Detection ECU 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
- B1790 2017 Toyota RAV4 indicates Center Airbag Sensor Assembly Communication Circuit Malfunction.
- Common causes
- Common causes include Faulty Occupant Detection ECU, Occupant Detection ECU harness is open or shorted, Occupant Detection ECU 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 B1790 2017 Toyota RAV4 Description
What are the Possible Causes of the DTC B1790 2017 Toyota RAV4?
- Faulty Occupant Detection ECU
- Occupant Detection ECU harness is open or shorted
- Occupant Detection ECU circuit poor electrical connection
- Faulty Center Airbag Sensor Assembly
How to Fix the DTC B1790 2017 Toyota RAV4?
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 B1790 2017 Toyota RAV4 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.
Need more information about the B1790 2017 Toyota RAV4 code?
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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 B1790 2017 Toyota RAV4 Code
1. What are the common symptoms of OBDII code B1790 in a 2017 Toyota RAV4?
- Common symptoms include the airbag warning light staying illuminated on the dashboard and potential issues with the airbag system's functionality.
2. What can cause the Center Airbag Sensor Assembly Communication Circuit Malfunction in a 2017 Toyota RAV4?
- Possible causes for this code may include damaged wiring, a faulty center airbag sensor assembly, or a communication error within the airbag system.
3. How serious is the B1790 OBDII code in a 2017 Toyota RAV4?
- This code indicates a malfunction in the communication circuit of the center airbag sensor assembly, which is a critical component of the vehicle's safety system. It should be addressed promptly to ensure proper airbag functionality in case of an accident.
4. Can I still drive my 2017 Toyota RAV4 with the B1790 code present?
- It is not recommended to drive the vehicle with the B1790 code active, as it indicates a potential issue with the airbag system's communication circuit, compromising its effectiveness in the event of a collision.
5. How can I diagnose and repair the B1790 code in my 2017 Toyota RAV4?
- Diagnosing and repairing the B1790 code typically involves inspecting the wiring for damage, checking the center airbag sensor assembly for faults, and addressing any communication errors within the airbag system.
6. Is it possible to reset the B1790 code in a 2017 Toyota RAV4 without fixing the underlying issue?
- Resetting the code without addressing the root cause, such as a faulty sensor or wiring problem, will likely result in the code reappearing once the system detects the ongoing issue.
7. Are there any DIY repair tips for fixing the B1790 code in a 2017 Toyota RAV4?
- DIY repair for the B1790 code may be challenging due to the complex nature of the airbag system. It's recommended to consult a professional technician with experience in diagnosing and repairing airbag-related issues.
8. How much does it typically cost to repair the B1790 code in a 2017 Toyota RAV4?
- The cost of repairing the B1790 code can vary depending on the underlying issue, parts needed for replacement, and labor costs. It's advisable to get a diagnosis from a qualified mechanic for an accurate estimate.
9. Can the B1790 code in a 2017 Toyota RAV4 be intermittent?
- Yes, the B1790 code can sometimes be intermittent, appearing and disappearing sporadically. However, it's crucial to address the issue promptly to ensure the airbag system's reliability.
10. Will fixing the B1790 code in my 2017 Toyota RAV4 require resetting the airbag system?
- Yes, after repairing the issue causing the B1790 code, the airbag system may need to be reset using a compatible diagnostic tool to clear the code and ensure proper functionality.
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