AutoCodesToyota – B1805 2018 Toyota RAV4

B1805 2018 Toyota RAV4 Code - Short In Front Passenger Side Squib Circuit

Quick Answer

The Front Passenger Side Squib Circuit consists of the Center Airbag Sensor Assembly and the Front Passenger Airbag Assembly. Common causes include Instrument panel wire, Faulty Front Passenger Airbag Assembly (Front Passenger Side Squib), Front Passenger Airbag Assembly harness is open or shorted. 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
B1805 2018 Toyota RAV4 indicates Short In Front Passenger Side Squib Circuit.
Common causes
Common causes include Instrument panel wire, Faulty Front Passenger Airbag Assembly (Front Passenger Side Squib), Front Passenger Airbag Assembly harness is open or shorted.
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 293
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Nov 25, 2022
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Code B1805 2018 Toyota RAV4 Description

The Front Passenger Side Squib Circuit consists of the Center Airbag Sensor Assembly and the Front Passenger Airbag Assembly. The circuit signals the Supplemental Restraint System (SRS) to deploy when deployment conditions are met. The Diagnostic Trouble Code (DTC) is recorded when the airbag sensor assembly detects a line short circuit signal 5 times in the Front Passenger Side Squib Circuit during the primary check.
OBDII Code B1805 2018 Toyota RAV4 - Short In Front Passenger Side Squib Circuit - AutoCodes.com
B1805 2018 Toyota RAV4 Code - Short In Front Passenger Side Squib Circuit

What are the Possible Causes of the DTC B1805 2018 Toyota RAV4?

  • Instrument panel wire
  • Faulty Front Passenger Airbag Assembly (Front Passenger Side Squib)
  • Front Passenger Airbag Assembly harness is open or shorted
  • Front Passenger Airbag Assembly circuit poor electrical connection
  • Faulty Center Airbag Sensor Assembly

How to Fix the DTC B1805 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 B1805 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 B1805 2018 Toyota RAV4 code?

Need more information on how to fix the B1805 2018 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1805 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.

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 B1805 2018 Toyota RAV4 Code

What does the OBDII code B1805 mean for a 2018 Toyota RAV4?

B1805 indicates a short circuit in the front passenger side squib circuit, which is part of the airbag system.

What symptoms might I experience if my RAV4 has the B1805 code?

Symptoms can include the airbag warning light being illuminated on the dashboard and potential malfunction of the passenger airbag.

What could cause the B1805 code to trigger?

Common causes include damaged wiring, a faulty airbag module, a short circuit in the squib circuit, or a defective passenger airbag.

Is it safe to drive my RAV4 with the B1805 code?

It is not recommended to drive with this code, as the airbag system may not function properly in the event of a collision.

How can I diagnose the B1805 code in my RAV4?

Use an OBDII scanner to confirm the code, and then inspect the wiring and connectors related to the front passenger airbag for damage or corrosion.

What repairs are typically needed to fix the B1805 code?

Repairs may include repairing or replacing damaged wiring, replacing the airbag module, or replacing the passenger airbag if it is faulty.

Can I reset the B1805 code myself?

While you can clear the code with an OBDII scanner, it is essential to address the underlying issue to prevent the code from reappearing.

How much might it cost to repair the issue associated with the B1805 code?

Repair costs can vary widely depending on the specific issue but may range from $100 to $1,000 or more if parts need to be replaced.

Should I take my RAV4 to a dealership for B1805 code repairs?

While you can take it to a dealership, many independent mechanics can also diagnose and repair airbag system issues effectively, often at a lower cost.

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