AutoCodesToyota – B1861 2013 Toyota RAV4

B1861 2013 Toyota RAV4 Code - Open in Driver Side Knee Airbag Squib Circuit

Quick Answer

The Driver Side Knee Airbag Squib Circuit consists of the Center Airbag Sensor Assembly and the Driver Side Knee Airbag Assembly. Common causes include Faulty Driver Side Knee Airbag Assembly (Driver Side Knee Squib), Driver Side Knee Airbag Assembly harness is open or shorted, Driver Side Knee Airbag Assembly 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
B1861 2013 Toyota RAV4 indicates Open in Driver Side Knee Airbag Squib Circuit.
Common causes
Common causes include Faulty Driver Side Knee Airbag Assembly (Driver Side Knee Squib), Driver Side Knee Airbag Assembly harness is open or shorted, Driver Side Knee Airbag Assembly 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.
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Code Popularity 286
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Dec 02, 2022
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Code B1861 2013 Toyota RAV4 Description

The Driver Side Knee Airbag Squib Circuit consists of the Center Airbag Sensor Assembly and the Driver Side Knee Airbag Assembly. This circuit instructs the Supplemental Restraint System (SRS) to deploy when deployment conditions are met. The Diagnostic Trouble Code (DTC) is stored when a malfunction is detected in the Driver Side Knee Airbag Squib Circuit.
OBDII Code B1861 2013 Toyota RAV4 - Open in Driver Side Knee Airbag Squib Circuit - AutoCodes.com
B1861 2013 Toyota RAV4 Code - Open in Driver Side Knee Airbag Squib Circuit

What are the Possible Causes of the DTC B1861 2013 Toyota RAV4?

  • Faulty Driver Side Knee Airbag Assembly (Driver Side Knee Squib)
  • Driver Side Knee Airbag Assembly harness is open or shorted
  • Driver Side Knee Airbag Assembly circuit poor electrical connection
  • Faulty Center Airbag Sensor Assembly

How to Fix the DTC B1861 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 B1861 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 B1861 2013 Toyota RAV4 code?

Need more information on how to fix the B1861 2013 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1861 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.

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B1861 2013 Toyota RAV4 Code

1. What does OBDII code B1861 mean on a 2013 Toyota RAV4?

Code B1861 indicates an open circuit in the driver side knee airbag squib, which is part of the Supplemental Restraint System (SRS).

2. What are the symptoms of code B1861 in a 2013 Toyota RAV4?

The main symptom is the illumination of the airbag warning light on the dashboard, along with possible deactivation of the SRS system.

3. What causes code B1861 to appear in a Toyota RAV4?

Common causes include damaged wiring or connectors, a faulty knee airbag module, or a malfunctioning spiral cable (clockspring) in the steering column.

4. Is it safe to drive a 2013 Toyota RAV4 with code B1861?

It’s not recommended, as the SRS system may not function properly in the event of a collision, compromising occupant safety.

5. How do you diagnose the cause of code B1861?

A technician will inspect the wiring and connectors for damage, check the knee airbag module, and use a diagnostic tool to test the squib circuit's resistance.

6. Can a faulty clockspring cause code B1861?

Yes, a damaged or worn clockspring can disrupt the electrical connection to the airbag circuit, triggering this code.

7. How do you fix code B1861 on a 2013 Toyota RAV4?

Repairs typically involve repairing or replacing damaged wiring, connectors, the knee airbag module, or the clockspring, depending on the diagnosis.

8. How much does it cost to fix code B1861 on a Toyota RAV4?

Repair costs vary but can range from $100 to $500 or more, depending on the part that needs replacement and labor charges.

9. Can I reset code B1861 without fixing the issue?

Resetting the code without addressing the underlying problem is not advised, as the airbag system may remain nonfunctional.

10. What tools are needed to diagnose and repair code B1861?

A multimeter, an OBDII scanner with SRS capabilities, and basic automotive tools are needed for diagnosis and repair.

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