AutoCodes – Toyota – B1805 Toyota

B1805 Toyota 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 Toyota 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 12,383

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 25, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1805 Toyota 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 Toyota - Short In Front Passenger Side Squib Circuit - AutoCodes.com — B1805 Toyota Code - Short In Front Passenger Side Squib Circuit

What does this mean?

What are the Possible Causes of the DTC B1805 Toyota?

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 Toyota?

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 Toyota 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 Toyota code?

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

Need Help with the Code?

Get the B1805 Toyota code diagnosed by a professional: Find a repair shop in your area

Information for Specific Toyota Models

B1805 2013 Toyota RAV4 — Short In Front Passenger Side Squib Circuit
B1805 2014 Toyota RAV4 — Short In Front Passenger Side Squib Circuit
B1805 2015 Toyota RAV4 — Short In Front Passenger Side Squib Circuit
B1805 2016 Toyota RAV4 — Short In Front Passenger Side Squib Circuit
B1805 2017 Toyota RAV4 — Short In Front Passenger Side Squib Circuit
B1805 2018 Toyota RAV4 — Short In Front Passenger Side Squib Circuit

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 Toyota Code

1. What are common symptoms of OBDII code B1805 in a Toyota related to a short in the front passenger side squib circuit?

- Common symptoms include an illuminated airbag warning light on the dashboard and potential non-deployment of the passenger side airbag in case of an accident.

2. What can cause the OBDII code B1805 in a Toyota indicating a short in the front passenger side squib circuit?

- The code can be triggered by a short circuit in the wiring harness, a faulty squib (airbag) unit, or a poor connection in the passenger side airbag system.

3. How can I diagnose the source of the short in the front passenger side squib circuit triggering OBDII code B1805 in my Toyota?

- To diagnose the issue, you can perform a visual inspection of the wiring harness, check the connections to the squib unit, and use a multimeter to test for continuity and resistance in the circuit.

4. Is it safe to drive my Toyota with OBDII code B1805 related to a short in the front passenger side squib circuit?

- It is not recommended to drive the vehicle with this code present, as it indicates a potential issue with the passenger side airbag system, which could affect its functionality in case of an accident.

5. Can I reset the OBDII code B1805 related to a short in the front passenger side squib circuit in my Toyota without fixing the underlying issue?

- While you can clear the code using an OBDII scanner, it is crucial to address the root cause of the problem to ensure the proper functioning of the passenger side airbag system.

6. What are some repair tips for fixing OBDII code B1805 due to a short in the front passenger side squib circuit in a Toyota?

- Repair tips include checking and repairing any damaged wiring, replacing the faulty squib unit if necessary, and ensuring all connections in the airbag system are secure.

7. How much does it typically cost to repair OBDII code B1805 related to a short in the front passenger side squib circuit in a Toyota?

- The cost of repair can vary depending on the extent of the damage and the parts that need to be replaced, but it is advisable to consult a professional for an accurate estimate.

8. Can I fix OBDII code B1805 indicating a short in the front passenger side squib circuit in my Toyota myself, or should I seek professional help?

- While some basic troubleshooting and repairs can be done by DIY enthusiasts, addressing issues related to the airbag system may require specialized knowledge and tools, so it is recommended to seek professional help.

9. Will fixing OBDII code B1805 in my Toyota related to a short in the front passenger side squib circuit affect the overall safety of the vehicle?

- Yes, addressing this code is crucial for maintaining the safety features of your vehicle, particularly the proper functioning of the passenger side airbag in case of a collision.

10. How long does it typically take to repair OBDII code B1805 due to a short in the front passenger side squib circuit in a Toyota?

- The repair time can vary depending on the complexity of the issue and the availability of parts, but it is advisable to consult with a professional technician for a more accurate timeframe.