AutoCodes – Buick – B2747 Buick

B2747 Buick Code - Traction Control Circuit Switch Low

Quick Answer

The Traction Off indicator is controlled by the instrument cluster via serial data messages from the Electronic Brake Control Module (EBCM). Common causes include Faulty Traction Control Circuit Switch, Traction Control Circuit Switch harness is open or shorted, Traction Control Circuit 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
B2747 Buick indicates Traction Control Circuit Switch Low.
Common causes
Common causes include Faulty Traction Control Circuit Switch, Traction Control Circuit Switch harness is open or shorted, Traction Control Circuit 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 484
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jan 26, 2020
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Code B2747 Buick Description

The Traction Off indicator is controlled by the instrument cluster via serial data messages from the Electronic Brake Control Module (EBCM). When the Body Control Module (BCM) sees the traction control switch input grounded through the momentary traction control switch, it sends a serial data message to the EBCM that tells the EBCM that the traction control switch has been pressed. The EBCM then disables traction control and sends a serial data message to the instrument cluster to turn the Traction Off indicator ON. Each time the ignition is cycled from OFF to ON, the traction control system is enabled. The Diagnostic Trouble Code (DTC) sets when the BCM detects a ground on the traction control switch signal circuit for longer than 60 seconds.
OBDII Code B2747 Buick - Traction Control Circuit Switch Low - AutoCodes.com
B2747 Buick Code - Traction Control Circuit Switch Low

What are the Possible Causes of the DTC B2747 Buick?

  • Faulty Traction Control Circuit Switch
  • Traction Control Circuit Switch harness is open or shorted
  • Traction Control Circuit Switch circuit poor electrical connection
  • Faulty Body Control Module (BCM)

How to Fix the DTC B2747 Buick?

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 B2747 Buick 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 B2747 Buick code?

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Need Help with the Code?

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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 B2747 Buick Code

1. What are the common symptoms of OBDII code B2747 Buick (Traction Control Circuit Switch Low)?

- Common symptoms include the traction control warning light illuminating on the dashboard, reduced traction control functionality, and potential issues with the ABS system.

2. What can cause the OBDII code B2747 Buick to trigger?

- The code B2747 Buick (Traction Control Circuit Switch Low) can be triggered by a faulty traction control switch, damaged wiring or connectors in the traction control circuit, or a malfunctioning traction control module.

3. How can I diagnose the cause of OBDII code B2747 Buick?

- To diagnose the cause of the code B2747 Buick, you can start by checking the condition of the traction control switch, inspecting the wiring and connectors for any damage, and using a diagnostic scanner to read the trouble codes stored in the vehicle's computer.

4. What are the possible repair options for OBDII code B2747 Buick?

- Repair options for the code B2747 Buick may include replacing the traction control switch, repairing or replacing damaged wiring or connectors, or resetting the traction control module using a diagnostic scanner.

5. Can I continue driving my Buick with the OBDII code B2747 (Traction Control Circuit Switch Low) present?

- It is not recommended to continue driving your Buick with the code B2747 present, as it can affect the proper functioning of the traction control system and potentially compromise your vehicle's safety on the road.

6. How much does it typically cost to repair OBDII code B2747 Buick?

- The cost of repairing the OBDII code B2747 Buick can vary depending on the underlying cause of the issue, but it may range from $100 to $300 for parts and labor.

7. Can I reset the OBDII code B2747 Buick myself?

- You can attempt to reset the OBDII code B2747 Buick using a diagnostic scanner, but it is recommended to first diagnose and address the root cause of the issue to prevent the code from reoccurring.

8. Will the OBDII code B2747 Buick cause my vehicle to fail an emissions test?

- The OBDII code B2747 Buick itself may not directly cause your vehicle to fail an emissions test, but it is important to address the underlying issue to ensure proper functioning of the traction control system, which can indirectly impact emissions performance.

9. Is OBDII code B2747 Buick a common issue in Buick vehicles?

- The OBDII code B2747 Buick (Traction Control Circuit Switch Low) can be a relatively common issue in Buick vehicles, especially in models equipped with traction control systems.

10. Can a DIY enthusiast repair OBDII code B2747 Buick at home?

- Depending on the DIY enthusiast's skill level and access to tools, repairing the OBDII code B2747 Buick at home may be possible, especially for tasks like replacing the traction control switch or repairing damaged wiring.

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