AutoCodes – GMC – B2745 2014 GMC Sierra

B2745 2014 GMC Sierra Code - Traction Control Switch Circuit

Quick Answer

The Body Control Module (BCM) monitors the signal circuit from the traction control switch. Common causes include Faulty Multifunction Switch Instrument Panel, Multifunction Switch Instrument Panel harness is open or shorted, Multifunction Switch Instrument Panel 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
B2745 2014 GMC Sierra indicates Traction Control Switch Circuit.
Common causes
Common causes include Faulty Multifunction Switch Instrument Panel, Multifunction Switch Instrument Panel harness is open or shorted, Multifunction Switch Instrument Panel 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 270
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 01, 2023
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Code B2745 2014 GMC Sierra Description

The Body Control Module (BCM) monitors the signal circuit from the traction control switch. When the traction control switch is pressed once, the body control module will request the electronic brake control module via serial data to disable the traction control. The electronic brake control module will request the instrument cluster via serial data to turn the traction control off indicator ON to notify the driver of the deactivation.
When the traction control switch is pressed and held for 5 s, the body control module will request the electronic brake control module to disable the traction control and the electronic stability control. The electronic brake control module will request the instrument cluster via serial data to turn the traction control off and stability control off indicator ON to notify the driver of the deactivation. The Diagnostic Trouble Code (DTC) sets when the BCM detects a problem in the signal circuit.
OBDII Code B2745 2014 GMC Sierra - Traction Control Switch Circuit - AutoCodes.com
B2745 2014 GMC Sierra Code - Traction Control Switch Circuit

What are the Possible Causes of the DTC B2745 2014 GMC Sierra?

  • Faulty Multifunction Switch Instrument Panel
  • Multifunction Switch Instrument Panel harness is open or shorted
  • Multifunction Switch Instrument Panel circuit poor electrical connection
  • Faulty Body Control Module (BCM)

How to Fix the DTC B2745 2014 GMC Sierra?

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 B2745 2014 GMC Sierra 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 B2745 2014 GMC Sierra code?

Need more information on how to fix the B2745 2014 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2745 2014 GMC Sierra 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 B2745 2014 GMC Sierra Code

1. What does OBDII code B2745 for a 2014 GMC Sierra mean?

The code B2745 indicates a fault in the Traction Control Switch Circuit in a 2014 GMC Sierra.

2. What are the common symptoms of OBDII code B2745 in a GMC Sierra?

Common symptoms of OBDII code B2745 may include the traction control system not functioning properly, the traction control light staying illuminated, or the vehicle going into reduced power mode.

3. What are the possible causes of OBDII code B2745 in a 2014 GMC Sierra?

Possible causes of OBDII code B2745 in a 2014 GMC Sierra include a faulty traction control switch, damaged wiring or connectors in the circuit, or a malfunctioning traction control module.

4. How can I diagnose OBDII code B2745 in my GMC Sierra?

Diagnosing OBDII code B2745 involves using a diagnostic scanner to retrieve the code, inspecting the traction control switch and related wiring for damage, and testing the traction control module for proper function.

5. Can I still drive my GMC Sierra with OBDII code B2745 present?

It is not recommended to drive your GMC Sierra with OBDII code B2745 present, as it can affect the operation of the traction control system and potentially compromise vehicle safety.

6. How can I repair OBDII code B2745 in my 2014 GMC Sierra?

Repairing OBDII code B2745 may involve replacing the faulty traction control switch, repairing damaged wiring or connectors, or replacing the traction control module if necessary.

7. Is OBDII code B2745 a serious issue in a 2014 GMC Sierra?

OBDII code B2745 should be addressed promptly, as it can impact the proper functioning of the traction control system, potentially leading to unsafe driving conditions.

8. Can a DIY enthusiast fix OBDII code B2745 in a 2014 GMC Sierra?

Depending on their skill level, a DIY enthusiast may be able to diagnose and repair OBDII code B2745 in a 2014 GMC Sierra by following a repair manual and using the necessary tools.

9. How much does it cost to repair OBDII code B2745 in a GMC Sierra?

The cost to repair OBDII code B2745 in a GMC Sierra can vary depending on the specific issue, parts needed for repair, and whether the work is done at a dealership or an independent repair shop.

10. Will resetting the OBDII code B2745 clear the issue in my GMC Sierra?

Resetting the OBDII code B2745 may temporarily clear the warning light, but it will not fix the underlying issue causing the fault in the traction control switch circuit. It's important to diagnose and repair the problem to prevent it from reoccurring.

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