AutoCodes – Cadillac – B2747 Cadillac

B2747 Cadillac 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 Cadillac 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.

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Code Popularity 603

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 Jan 26, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2747 Cadillac 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 Cadillac - Traction Control Circuit Switch Low - AutoCodes.com — B2747 Cadillac Code - Traction Control Circuit Switch Low

What does this mean?

What are the Possible Causes of the DTC B2747 Cadillac?

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 Cadillac?

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 Cadillac 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 B2747 Cadillac Code

1. What does the OBDII code B2747 mean on a Cadillac?

B2747 indicates a "Traction Control Circuit Switch Low" fault, meaning the traction control switch or its circuit is reporting a low voltage or failing to operate correctly.

2. What are the common symptoms of code B2747 in a Cadillac?

Symptoms may include the traction control system being disabled, the traction control warning light illuminated, or reduced stability and handling in slippery conditions.

3. What causes the B2747 code to trigger on a Cadillac?

Common causes include a faulty traction control switch, damaged wiring or connectors in the circuit, or a malfunctioning traction control module.

4. Can I still drive my Cadillac with the B2747 code?

Yes, but driving without a functioning traction control system can be dangerous, especially in poor weather or slippery road conditions.

5. How do I diagnose the B2747 code on my Cadillac?

Diagnosis typically involves inspecting the traction control switch and its wiring, checking for loose or corroded connectors, and testing the switch's voltage output using a multimeter.

6. What repairs are recommended for the B2747 code?

Repairs may include replacing the traction control switch, repairing or replacing damaged wiring, or recalibrating/replacing the traction control module if needed.

7. How much does it cost to fix the B2747 code on a Cadillac?

Repair costs vary but typically range from $100 to $300 depending on whether the issue is with the switch, wiring, or module.

8. Can a faulty traction control switch cause other issues in my Cadillac?

Yes, it can indirectly affect the vehicleâ€™s stability and lead to additional wear on tires or suspension components due to reduced traction management.

9. Will clearing the code B2747 fix the issue permanently?

No, clearing the code without addressing the underlying problem will only temporarily turn off the warning light, and the code will likely return.

10. Can a DIY fix solve the B2747 code on my Cadillac?

If the issue is a loose connector or minor wiring damage, a DIY fix may work. However, diagnosing and replacing the switch or module may require professional tools and expertise.