AutoCodes – Generic – B1805

B1805 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 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 10,973

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 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 - Short in Front Passenger Side Squib Circuit - AutoCodes.com — B1805 Code - Short in Front Passenger Side Squib Circuit

What does this mean?

What are the Possible Causes of the DTC B1805?

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?

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 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 code?

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

Need Help with the Code?

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

Information for Specific Makes

B1805 Buick — Driver Seat Motor Side Bolster Circuit
B1805 Cadillac — Driver Seat Motor Side Bolster Circuit
B1805 Chevrolet — Driver Seat Motor Side Bolster Circuit
B1805 Chrysler — Passenger Door Lock/Unlock Switch Circuit Performance Cluster
B1805 Dodge — Passenger Door Lock/Unlock Switch Circuit Performance Cluster
B1805 GMC — Driver Seat Motor Side Bolster Circuit
B1805 Jeep — Passenger Door Lock/Unlock Switch Circuit Performance Cluster
B1805 Lexus — Short In Front Passenger Side Squib Circuit
B1805 Pontiac — Driver Seat Motor Side Bolster Circuit
B1805 RAM — Passenger Door Lock/Unlock Switch Circuit Performance Cluster
B1805 Saturn — Driver Seat Motor Side Bolster Circuit
B1805 Scion — Short In Front Passenger Side Squib Circuit
B1805 Toyota — 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 Code

1. What are the common symptoms of OBDII code B1805 (Short in Front Passenger Side Squib Circuit)?

The common symptoms include an illuminated airbag warning light on the dashboard and a potential loss of functionality of the front passenger airbag.

2. What are the possible causes of OBDII code B1805?

Possible causes of this code include a short circuit in the front passenger side airbag system, damaged wiring or connectors, faulty airbag module, or a defective front passenger airbag.

3. How can I diagnose the issue related to OBDII code B1805?

Diagnosing the issue involves using a diagnostic scanner to retrieve the specific fault codes, inspecting the wiring and connectors in the front passenger side airbag circuit, and testing the components like the airbag module and front passenger airbag for proper functionality.

4. Can I continue driving my vehicle with OBDII code B1805?

It is not recommended to drive the vehicle with an active airbag fault code like B1805, as it indicates a potential safety risk due to the front passenger airbag system being compromised.

5. How can I repair OBDII code B1805 (Short in Front Passenger Side Squib Circuit)?

The repair process involves identifying and fixing the root cause of the short circuit, replacing any damaged wiring or connectors, repairing or replacing the faulty airbag module, and ensuring proper reconnection and testing of the front passenger airbag system.

6. Is it safe to reset or clear the B1805 fault code without addressing the underlying issue?

Clearing the fault code without fixing the underlying problem will only temporarily remove the warning light, but the safety risk associated with the compromised front passenger airbag system will remain. It is crucial to address the root cause of the code.

7. Can a DIY enthusiast repair OBDII code B1805 at home?

While some basic troubleshooting steps can be performed by a DIY enthusiast, dealing with airbag systems requires specialized knowledge and tools. It is recommended to consult a professional technician for proper diagnosis and repair of OBDII code B1805.

8. How long does it typically take to repair OBDII code B1805?

The repair time for OBDII code B1805 can vary depending on the exact cause of the issue and the availability of parts. In general, it may take a few hours to a day to diagnose and fix the problem related to the short in the front passenger side squib circuit.

9. Are there any safety precautions to consider when working on the front passenger side airbag system?

When working on the front passenger side airbag system, it is crucial to disconnect the vehicle's battery to prevent accidental deployment of the airbag. Additionally, following manufacturer's safety procedures and wearing appropriate protective gear is recommended.

10. Will fixing OBDII code B1805 require resetting the airbag system?

After repairing the issue related to OBDII code B1805, it may be necessary to reset the airbag system using a diagnostic scanner to clear the fault code and ensure proper functionality of the front passenger airbag system.