AutoCodes – Scion – B1243 Scion

B1243 Scion Code - GSW Terminal Circuit Malfunction

Quick Answer

If the collision door lock release function does not operate normally, or an open or short in the GSW input circuit of the Main Body ECU is detected, Diagnostic Trouble Code (DTC) B1243 will be stored. Common causes include Faulty Airbag Sensor Assembly, Airbag Sensor Assembly harness is open or shorted, Airbag Sensor Assembly 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: B1243 Scion indicates GSW Terminal Circuit Malfunction.
Common causes: Common causes include Faulty Airbag Sensor Assembly, Airbag Sensor Assembly harness is open or shorted, Airbag Sensor Assembly 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 1,542

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Nov 19, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1243 Scion Description

OBDII Code B1243 Scion - GSW Terminal Circuit Malfunction - AutoCodes.com — B1243 Scion Code - GSW Terminal Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC B1243 Scion?

Faulty Airbag Sensor Assembly
Airbag Sensor Assembly harness is open or shorted
Airbag Sensor Assembly circuit poor electrical connection
Faulty Main Body ECU

How to Fix the DTC B1243 Scion?

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 B1243 Scion 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 B1243 Scion code?

Need more information on how to fix the B1243 Scion code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1243 Scion 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 B1243 Scion Code

1. What are common symptoms of OBDII code B1243 Scion GSW Terminal Circuit Malfunction?

The common symptoms include issues with the vehicle's start-up, performance, and electrical systems, such as difficulty starting the engine, poor acceleration, or erratic behavior of dashboard lights.

2. What can cause the OBDII code B1243 Scion GSW Terminal Circuit Malfunction?

Possible causes of this code include damaged wiring, loose connections, faulty GSW terminal circuit components, or issues with the vehicle's electronic control module.

3. How serious is the OBDII code B1243 Scion GSW Terminal Circuit Malfunction?

While the severity of this code can vary, it is important to address it promptly to prevent potential damage to the vehicle's electrical system and ensure proper functionality.

4. How can I diagnose the OBDII code B1243 Scion GSW Terminal Circuit Malfunction?

Diagnosing this code typically involves using an OBDII scanner to retrieve the specific fault code, conducting a visual inspection of wiring and connections, and performing circuit tests to pinpoint the issue.

5. Can I repair the OBDII code B1243 Scion GSW Terminal Circuit Malfunction myself?

Depending on your automotive repair skills and access to tools, you may be able to address this code yourself by checking and repairing any damaged wiring, securing loose connections, or replacing faulty components.

6. Will driving with the OBDII code B1243 Scion GSW Terminal Circuit Malfunction damage my vehicle?

Continuously driving with this code can potentially lead to further electrical issues and impact the overall performance of the vehicle, so it is advisable to address the problem as soon as possible.

7. How much does it cost to repair the OBDII code B1243 Scion GSW Terminal Circuit Malfunction?

The repair cost for this code can vary depending on the specific cause of the issue, the labor rates in your area, and whether you choose to fix the problem yourself or seek professional assistance.

8. Are there any preventive measures to avoid the OBDII code B1243 Scion GSW Terminal Circuit Malfunction?

Regularly inspecting the vehicle's wiring and connections, ensuring proper maintenance of the electrical system, and addressing any issues promptly can help prevent the occurrence of this code.

9. Can resetting the OBDII system clear the B1243 Scion GSW Terminal Circuit Malfunction code?

Resetting the OBDII system may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear once the system detects the fault again.

10. How long does it typically take to repair the OBDII code B1243 Scion GSW Terminal Circuit Malfunction?

The repair time for this code can vary depending on the complexity of the issue, the availability of parts, and whether you choose to repair the vehicle yourself or take it to a professional mechanic.