B1860 2018 Toyota RAV4 Code - Short 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
- B1860 2018 Toyota RAV4 indicates Short 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.
Code B1860 2018 Toyota RAV4 Description
What are the Possible Causes of the DTC B1860 2018 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 B1860 2018 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 B1860 2018 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 B1860 2018 Toyota RAV4 code?
Need more information on how to fix the B1860 2018 Toyota RAV4 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B1860 2018 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 B1860 2018 Toyota RAV4 Code
1. What does the OBDII code B1860 mean on a 2018 Toyota RAV4?
The code B1860 indicates a short circuit in the driver-side knee airbag squib circuit, which is part of the Supplemental Restraint System (SRS).
2. What are the common symptoms of code B1860 in a 2018 Toyota RAV4?
Symptoms include the airbag warning light staying illuminated and potential deactivation of the driver-side knee airbag.
3. What causes the B1860 code to appear?
Common causes include damaged or shorted wiring, a faulty driver-side knee airbag squib, a malfunctioning clock spring, or a defective SRS control module.
4. Is it safe to drive with the B1860 code active?
No, it is not safe because the airbag system may not deploy properly in an accident, compromising safety.
5. How is the B1860 code diagnosed?
Technicians diagnose this code by using an OBDII scanner, inspecting the airbag system wiring, checking the clock spring, and testing the knee airbag squib for shorts or damage.
6. Can I reset the B1860 code without repairs?
Clearing the code without addressing the underlying issue is not recommended, as the airbag system will remain compromised.
7. How do you fix the B1860 code on a 2018 Toyota RAV4?
Repairs may involve replacing damaged wiring, repairing the clock spring, or replacing the driver-side knee airbag squib or SRS control module.
8. How much does it cost to repair the B1860 code?
Repair costs vary depending on the issue but can range from $100 for wiring repairs to over $1,000 for component replacements like the airbag squib or SRS control module.
9. Can a faulty clock spring cause the B1860 code?
Yes, a faulty clock spring can disrupt the electrical connection to the airbag squib, triggering the B1860 code.
10. Do I need professional help to fix the B1860 code?
Yes, due to the complexity and safety-critical nature of the airbag system, it is recommended to have a certified technician handle the repairs.
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