AutoCodes – Scion – C1249 Scion

C1249 Scion Code - Open in Stop Light Switch Circuit

Quick Answer

The skid control ECU detects the brake operating conditions through a signal transmitted by the stop light switch. Common causes include Faulty Stop Light Switch, Stop Light Switch harness is open or shorted, Stop Light Switch 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
C1249 Scion indicates Open in Stop Light Switch Circuit.
Common causes
Common causes include Faulty Stop Light Switch, Stop Light Switch harness is open or shorted, Stop Light Switch 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 3,608
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 30, 2020
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Code C1249 Scion Description

The skid control ECU detects the brake operating conditions through a signal transmitted by the stop light switch. The skid control ECU incorporates an open circuit detection circuit. This DTC is set under either of the following conditions:
- An open is detected in the stop light signal input line when the stop light switch is off.
- An open is detected in the stop light circuit lead to the ground when the stop light switch is off.
OBDII Code C1249 Scion - Open in Stop Light Switch Circuit - AutoCodes.com
C1249 Scion Code - Open in Stop Light Switch Circuit

What are the Possible Causes of the DTC C1249 Scion?

  • Faulty Stop Light Switch
  • Stop Light Switch harness is open or shorted
  • Stop Light Switch circuit poor electrical connection
  • Faulty ABS and Traction Actuator

How to Fix the DTC C1249 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 C1249 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.

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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 C1249 Scion Code

1. What are the common symptoms of OBDII code C1249 in a Scion related to an open in the stop light switch circuit?

The common symptoms include the brake lights not working, the vehicle unable to shift out of park, and the dashboard displaying a warning light related to the brake system.

2. What are the potential causes of OBDII code C1249 in a Scion indicating an open in the stop light switch circuit?

Possible causes include a faulty stop light switch, damaged wiring or connectors in the circuit, a blown fuse, or a problem with the brake light control module.

3. How can I diagnose OBDII code C1249 in a Scion with the open stop light switch circuit?

You can start by checking the stop light switch for proper operation, inspecting the wiring and connectors for any damage, testing the fuse related to the brake lights, and using a multimeter to check for continuity in the circuit.

4. Is it safe to continue driving my Scion with OBDII code C1249 indicating an open in the stop light switch circuit?

It is not recommended to drive the vehicle with this issue, as it can affect the brake lights and potentially lead to unsafe driving conditions. It is best to address the problem promptly.

5. Can I repair OBDII code C1249 in a Scion with the open stop light switch circuit myself?

Depending on your level of expertise, you may be able to repair this issue yourself by replacing the stop light switch, repairing any damaged wiring, or addressing any other identified problems in the circuit. However, if you are unsure, it's best to seek professional help.

6. Will resetting the OBDII code C1249 in my Scion resolve the issue related to the open stop light switch circuit?

Simply clearing the code may not solve the underlying problem causing the open in the stop light switch circuit. It is important to diagnose and repair the issue causing the fault code to prevent it from recurring.

7. How much does it typically cost to repair OBDII code C1249 in a Scion due to an open in the stop light switch circuit?

The cost of repairing this issue can vary depending on the exact cause of the problem, the parts needed for the repair, and whether you do the work yourself or take it to a mechanic. It's best to get a few quotes from different repair shops.

8. Can a malfunctioning stop light switch cause other issues in my Scion besides triggering OBDII code C1249?

Yes, a faulty stop light switch can cause other issues such as the brake lights staying on constantly, the vehicle not starting, or the inability to shift out of park. It is an important component of the vehicle's safety systems.

9. Are there any preventive measures I can take to avoid encountering OBDII code C1249 in my Scion related to an open in the stop light switch circuit?

Regularly inspecting the stop light switch, checking the brake lights for proper operation, and addressing any issues promptly can help prevent this code from occurring. Maintaining a well-functioning brake system is key.

10. How urgent is it to address OBDII code C1249 in a Scion indicating an open in the stop light switch circuit?

It is important to address this issue in a timely manner to ensure the proper operation of the brake lights and overall safety of the vehicle. Ignoring the problem can lead to unsafe driving conditions and potential legal issues due to non-functioning brake lights.

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