AutoCodes – Generic – B1426

B1426 Code - Lamp Seat Belt Circuit Short To Battery

Quick Answer

The Body Control Module (BCM) monitors the Lamp Seat Belt. Common causes include Faulty Lamp Seat Belt, Lamp Seat Belt harness is open or shorted, Lamp Seat Belt 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: B1426 indicates Lamp Seat Belt Circuit Short To Battery.
Common causes: Common causes include Faulty Lamp Seat Belt, Lamp Seat Belt harness is open or shorted, Lamp Seat Belt 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 7,734

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 Apr 09, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1426 Description

The Body Control Module (BCM) monitors the Lamp Seat Belt. The BCM sets the OBDII code when the Lamp Seat Belt is not to factory specifications.

OBDII Code B1426 - Lamp Seat Belt Circuit Short To Battery - AutoCodes.com — B1426 Code - Lamp Seat Belt Circuit Short To Battery

What does this mean?

What are the Possible Causes of the DTC B1426?

Faulty Lamp Seat Belt
Lamp Seat Belt harness is open or shorted
Lamp Seat Belt circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B1426?

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 B1426 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 B1426 code?

Need more information on how to fix the B1426 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1426 code diagnosed by a professional: Find a repair shop in your area

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 B1426 Code

1. What are the common symptoms of OBDII code B1426 (Lamp Seat Belt Circuit Short To Battery)?

- The common symptoms include the airbag warning light staying on, the seat belt reminder light not functioning properly, and potential issues with the airbag system.

2. What are the possible causes of OBDII code B1426?

- The code B1426 can be caused by a short circuit in the seat belt lamp circuit, a faulty seat belt switch, damaged wiring in the seat belt circuit, or a malfunctioning airbag control module.

3. How can I diagnose the OBDII code B1426?

- Diagnosis involves using a diagnostic scanner to retrieve the fault code, inspecting the seat belt circuit wiring for any visible damage, testing the seat belt switch, and checking the airbag control module for faults.

4. Can I still drive my vehicle with OBDII code B1426 present?

- It is not recommended to drive the vehicle with the B1426 code present, as it indicates a potential issue with the airbag system or seat belt circuit, which are crucial for safety in the event of a collision.

5. How can I repair OBDII code B1426?

- Repairing the B1426 code involves fixing the short circuit in the seat belt circuit, replacing the faulty seat belt switch, repairing any damaged wiring, or addressing any issues with the airbag control module.

6. Is it safe to reset the OBDII code B1426 without fixing the underlying issue?

- It is not recommended to reset the B1426 code without addressing the underlying problem, as it could compromise the safety features of the airbag system and seat belt circuit.

7. Can OBDII code B1426 be triggered by a loose seat belt?

- A loose seat belt itself is unlikely to trigger the B1426 code. However, if the seat belt switch is faulty or damaged, it may contribute to the code being set.

8. How long does it typically take to repair OBDII code B1426?

- The repair time for the B1426 code varies depending on the specific cause of the issue. It can range from a quick fix for a wiring issue to a more involved repair for a faulty airbag control module.

9. Will OBDII code B1426 cause my airbags to deploy unexpectedly?

- The B1426 code itself does not cause airbags to deploy unexpectedly. However, it indicates a fault in the airbag system that should be addressed to ensure proper deployment in the event of a collision.

10. Can I reset OBDII code B1426 at home, or do I need to visit a mechanic?

- While you can reset the B1426 code at home using an OBDII scanner, it is important to have the underlying issue diagnosed and repaired by a professional mechanic to ensure the safety of your vehicle.