AutoCodes – Lexus – B1185 Lexus

B1185 Lexus Code - Short In Passenger Side Air Bag Second Stage Squib Circuit

Quick Answer

The Passenger Side Air Bag Second Stage Squib Circuit consists of the Air Bag Sensor Assembly and Passenger Side Air Bag Module. Common causes include Faulty Passenger Side Air Bag Second Stage Squib, Passenger Side Air Bag Second Stage Squib harness is open or shorted, Passenger Side Air Bag Second Stage Squib 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: B1185 Lexus indicates Short In Passenger Side Air Bag Second Stage Squib Circuit.
Common causes: Common causes include Faulty Passenger Side Air Bag Second Stage Squib, Passenger Side Air Bag Second Stage Squib harness is open or shorted, Passenger Side Air Bag Second Stage Squib 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 2,109

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 Feb 26, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1185 Lexus Description

The Passenger Side Air Bag Second Stage Squib Circuit consists of the Air Bag Sensor Assembly and Passenger Side Air Bag Module. The squib circuit causes the Passenger Side Air Bag to deploy when deployment conditions are satisfied.

OBDII Code B1185 Lexus - Short In Passenger Side Air Bag Second Stage Squib Circuit - AutoCodes.com — B1185 Lexus Code - Short In Passenger Side Air Bag Second Stage Squib Circuit

What does this mean?

What are the Possible Causes of the DTC B1185 Lexus?

Faulty Passenger Side Air Bag Second Stage Squib
Passenger Side Air Bag Second Stage Squib harness is open or shorted
Passenger Side Air Bag Second Stage Squib circuit poor electrical connection
Faulty Air Bag Sensor Assembly

How to Fix the DTC B1185 Lexus?

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 B1185 Lexus 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 B1185 Lexus code?

Need more information on how to fix the B1185 Lexus code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1185 Lexus 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 B1185 Lexus Code

1. What are the common symptoms of OBDII code B1185 in a Lexus related to a short in the passenger side air bag second stage squib circuit?

The common symptoms include the airbag warning light illuminating on the dashboard and a potential loss of functionality in the passenger side airbag system.

2. What are some possible causes of the B1185 code indicating a short in the passenger side air bag second stage squib circuit in a Lexus?

Potential causes include damaged wiring or connectors in the airbag system, a faulty airbag squib, or issues with the airbag control module.

3. How can I diagnose the source of the short in the passenger side air bag second stage squib circuit in my Lexus triggering the B1185 code?

A thorough inspection of the wiring, connectors, and components in the passenger side airbag system will be necessary. Using a multimeter to test for continuity and resistance can help pinpoint the location of the short.

4. Is it safe to drive my Lexus with the B1185 code indicating a short in the passenger side air bag second stage squib circuit?

It is not recommended to drive the vehicle with unresolved airbag issues, as the safety of the passengers may be compromised in the event of a collision.

5. How can I clear the B1185 OBDII code related to a short in the passenger side air bag second stage squib circuit in my Lexus after repairing the issue?

After repairing the short and addressing the underlying cause, the OBDII code can be cleared using a compatible scan tool or by disconnecting the vehicle's battery for a few minutes.

6. Can I repair the short in the passenger side air bag second stage squib circuit causing the B1185 code in my Lexus myself, or should I seek professional assistance?

Repairing airbag system issues can be complex and dangerous due to the sensitive nature of these components. It is recommended to seek professional assistance to ensure the repair is done correctly and safely.

7. Are there any safety precautions I should take when working on the passenger side air bag second stage squib circuit in my Lexus to resolve the B1185 code?

Before working on the airbag system, it is crucial to disconnect the vehicle's battery and wait for at least 10 minutes to allow the system to discharge completely. This helps prevent accidental airbag deployment.

8. Will fixing the short in the passenger side air bag second stage squib circuit causing the B1185 code require replacing any components in my Lexus?

Depending on the root cause of the short, components such as wiring, connectors, or the airbag squib may need to be replaced to resolve the issue and clear the OBDII code.

9. How long does it typically take to repair a short in the passenger side air bag second stage squib circuit leading to the B1185 code in a Lexus?

The repair time can vary based on the complexity of the issue and the availability of parts. It is advisable to consult with a professional technician to get an estimate of the repair duration.

10. Can the B1185 OBDII code related to a short in the passenger side air bag second stage squib circuit in a Lexus affect the functionality of other vehicle systems?

While the primary concern is the proper operation of the airbag system, unresolved airbag issues can sometimes trigger warning lights or codes in other vehicle systems. Regular maintenance and timely repairs are essential to ensure overall vehicle safety and performance.