AutoCodes – Toyota – B1927 Toyota

B1927 Toyota Code - Short To Ground In Rear Pretensioner Squib LH Circuit

Quick Answer

The Rear Pretensioner Squib Left (LH) Circuit consists of the Center Airbag Sensor Assembly and the Seat Outer Belt Assembly Left (LH). Common causes include Faulty Seat Outer Belt Assembly Left (LH) (Rear Pretensioner Squib LH), Seat Outer Belt Assembly Left (LH) harness is open or shorted, Seat Outer Belt Assembly Left (LH) 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: B1927 Toyota indicates Short To Ground In Rear Pretensioner Squib LH Circuit.
Common causes: Common causes include Faulty Seat Outer Belt Assembly Left (LH) (Rear Pretensioner Squib LH), Seat Outer Belt Assembly Left (LH) harness is open or shorted, Seat Outer Belt Assembly Left (LH) 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 8,691

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 Jul 29, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1927 Toyota Description

The Rear Pretensioner Squib Left (LH) Circuit consists of the Center Airbag Sensor Assembly and the Seat Outer Belt Assembly Left (LH). This circuit instructs the Supplemental Restraint System (SRS) to deploy when deployment conditions are met. The Diagnostic Trouble Code (DTC) is stored when a malfunction is detected in the Rear Pretensioner Squib LH Circuit.

OBDII Code B1927 Toyota - Short To Ground In Rear Pretensioner Squib LH Circuit - AutoCodes.com — B1927 Toyota Code - Short To Ground In Rear Pretensioner Squib LH Circuit

What does this mean?

What are the Possible Causes of the DTC B1927 Toyota?

Faulty Seat Outer Belt Assembly Left (LH) (Rear Pretensioner Squib LH)
Seat Outer Belt Assembly Left (LH) harness is open or shorted
Seat Outer Belt Assembly Left (LH) circuit poor electrical connection
Faulty Center Airbag Sensor Assembly

How to Fix the DTC B1927 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 B1927 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 B1927 Toyota code?

Need more information on how to fix the B1927 Toyota code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1927 Toyota 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 B1927 Toyota Code

1. What are the common symptoms of OBDII code B1927 in a Toyota related to a Short To Ground In Rear Pretensioner Squib LH Circuit?

Symptoms may include the airbag warning light illuminating on the dashboard, and potential issues with the rear seatbelt pretensioner system.

2. What are the possible causes of OBDII code B1927 in a Toyota indicating a Short To Ground In Rear Pretensioner Squib LH Circuit?

Possible causes include damaged wiring or connectors in the rear pretensioner squib LH circuit, issues with the rear seatbelt pretensioner itself, or a faulty airbag control module.

3. How can I diagnose the issue causing OBDII code B1927 in a Toyota related to a Short To Ground In Rear Pretensioner Squib LH Circuit?

Diagnosis typically involves inspecting the wiring and connectors in the rear pretensioner squib LH circuit, testing the rear seatbelt pretensioner for continuity, and using a diagnostic scan tool to check for fault codes.

4. Can I continue driving my Toyota with OBDII code B1927 indicating a Short To Ground In Rear Pretensioner Squib LH Circuit?

It is not recommended to drive the vehicle with this code present, as it indicates a potential safety issue with the airbag system. Prompt attention and repair are advised.

5. Are there any DIY repair tips for addressing OBDII code B1927 in a Toyota related to a Short To Ground In Rear Pretensioner Squib LH Circuit?

DIY repair for this code can be challenging due to the safety implications involved. It is recommended to seek assistance from a qualified mechanic or dealership for proper diagnosis and repair.

6. Will resetting the OBDII code B1927 in a Toyota resolve the issue with the Short To Ground In Rear Pretensioner Squib LH Circuit?

Simply resetting the code will not fix the underlying problem causing the Short To Ground In Rear Pretensioner Squib LH Circuit issue. Proper diagnosis and repair are necessary to address the root cause.

7. How much does it typically cost to repair OBDII code B1927 in a Toyota indicating a Short To Ground In Rear Pretensioner Squib LH Circuit?

Repair costs can vary depending on the exact cause of the issue and labor rates in your area. It is advisable to obtain quotes from different repair shops or dealerships.

8. Is the repair for OBDII code B1927 covered under Toyota's warranty?

Warranty coverage for this specific issue will depend on the vehicle's age, mileage, and warranty status. Check with your local Toyota dealership to determine if the repair is covered under warranty.

9. Can OBDII code B1927 in a Toyota be a recurring problem even after repair?

If the root cause of the issue is not properly diagnosed and repaired, there is a possibility that the code may reoccur. Ensure that the repair is done correctly to prevent future issues.

10. Are there any safety precautions to take if OBDII code B1927 appears in a Toyota related to a Short To Ground In Rear Pretensioner Squib LH Circuit?

It is important to prioritize safety by avoiding any DIY attempts to repair the issue and seeking professional help. Refrain from driving the vehicle until the airbag system concern is resolved to prevent any potential safety hazards.