B2745 2018 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 2018 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.
Code B2745 2018 GMC Sierra Description
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.
What are the Possible Causes of the DTC B2745 2018 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 2018 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 2018 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.
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Frequently Asked Questions about B2745 2018 GMC Sierra Code
1. What does OBDII code B2745 for a 2018 GMC Sierra mean?
The code B2745 indicates a problem with the Traction Control Switch Circuit in a 2018 GMC Sierra.
2. What are common symptoms of OBDII code B2745 in a 2018 GMC Sierra?
Common symptoms of this code may include the traction control system not functioning properly, the traction control light staying illuminated, or the inability to engage/disengage the traction control system.
3. What are possible causes of OBDII code B2745 in a 2018 GMC Sierra?
Potential causes of this code include a faulty traction control switch, damaged wiring or connectors in the traction control circuit, or a malfunctioning traction control module.
4. How can I diagnose the issue related to OBDII code B2745 in my 2018 GMC Sierra?
Diagnosing the problem may involve visually inspecting the traction control switch and its wiring, checking for loose connections, testing the switch for continuity, and using an OBDII scanner to retrieve specific diagnostic trouble codes.
5. Can I still drive my 2018 GMC Sierra with OBDII code B2745 present?
It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to ensure the traction control system functions properly.
6. How can I repair OBDII code B2745 in my 2018 GMC Sierra?
Repairing this code may involve replacing the traction control switch if it is faulty, repairing any damaged wiring or connectors, or reprogramming the traction control module if needed.
7. Is it possible to reset OBDII code B2745 in a 2018 GMC Sierra without repairing the issue?
While you can clear the code with an OBDII scanner, it is important to address the underlying problem to prevent future issues with the traction control system.
8. Are there any DIY tips for fixing OBDII code B2745 in a 2018 GMC Sierra?
DIY tips may include checking for loose connections, inspecting the switch for physical damage, and consulting the vehicle's service manual for specific repair procedures.
9. How much does it cost to repair OBDII code B2745 in a 2018 GMC Sierra?
The cost of repairing this code can vary depending on the exact cause of the issue, but it may involve expenses for parts and labor at a dealership or automotive repair shop.
10. Can weather conditions or driving habits trigger OBDII code B2745 in a 2018 GMC Sierra?
Extreme weather conditions or aggressive driving habits may not directly trigger this specific code, but they can potentially exacerbate existing issues with the traction control system, leading to the code being stored.
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