B1790 2013 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 2013 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 2013 Toyota RAV4 Description
What are the Possible Causes of the DTC B1790 2013 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 2013 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 2013 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 2013 Toyota RAV4 code?
Need more information on how to fix the B1790 2013 Toyota RAV4 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B1790 2013 Toyota RAV4 code diagnosed by a professional: Find a repair shop in your area
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 2013 Toyota RAV4 Code
What does the OBDII code B1790 mean for a 2013 Toyota RAV4?
The OBDII code B1790 indicates a malfunction in the communication circuit of the center airbag sensor assembly, which can affect the airbag system's functionality.
What are the common symptoms associated with the B1790 code?
Common symptoms include the airbag warning light illuminated on the dashboard, and in some cases, the airbag system may become disabled, preventing deployment during an accident.
What could cause the B1790 code to trigger?
Possible causes include damaged wiring or connectors in the airbag system, a faulty center airbag sensor assembly, or issues with the vehicle’s electronic control unit (ECU).
How can I diagnose the B1790 code?
To diagnose the B1790 code, use an OBD-II scanner to confirm the code and check for any additional codes. Inspect the wiring and connectors related to the center airbag sensor for damage or corrosion.
Can I drive my 2013 Toyota RAV4 with the B1790 code?
It is not advisable to drive the vehicle with the B1790 code active, as the airbag system may not function correctly in the event of an accident.
What repairs are typically needed to fix the B1790 code?
Repairs may involve replacing damaged wiring or connectors, replacing the center airbag sensor assembly, or reprogramming the ECU if necessary.
Is it safe to reset the B1790 code without fixing the underlying issue?
Resetting the B1790 code without addressing the underlying issue is not safe, as the airbag system may still be compromised, posing a risk in the event of a crash.
How much does it typically cost to repair the B1790 code?
Repair costs can vary widely depending on the specific issue, but they generally range from $100 to $600, depending on whether the problem is with wiring, connectors, or the sensor itself.
Can I fix the B1790 code myself?
If you have experience with automotive electrical systems, you may be able to diagnose and repair wiring issues or replace the sensor. However, due to the importance of the airbag system, professional assistance is recommended for safety.
Will clearing the B1790 code from the ECU solve the problem?
Clearing the code will not solve the problem; it will only remove the warning light temporarily. The underlying issue must be diagnosed and repaired for the airbag system to function properly.
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