AutoCodes – Chevrolet – B2745 Chevrolet

B2745 Chevrolet 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 Chevrolet 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 12,153

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 Jun 01, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2745 Chevrolet 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 Chevrolet - Traction Control Switch Circuit - AutoCodes.com — B2745 Chevrolet Code - Traction Control Switch Circuit

What does this mean?

What are the Possible Causes of the DTC B2745 Chevrolet?

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 Chevrolet?

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 Chevrolet 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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Get the B2745 Chevrolet code diagnosed by a professional: Find a repair shop in your area

Information for Specific Chevrolet Models

B2745 2014 Chevrolet Silverado — Traction Control Switch Circuit
B2745 2015 Chevrolet Silverado — Traction Control Switch Circuit
B2745 2016 Chevrolet Silverado — Traction Control Switch Circuit
B2745 2017 Chevrolet Silverado — Traction Control Switch Circuit
B2745 2018 Chevrolet Silverado — Traction Control Switch Circuit

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 Chevrolet Code

1. What are common symptoms of OBDII code B2745 (Chevrolet) related to the Traction Control Switch Circuit?

Symptoms may include the traction control system not functioning properly, the traction control light illuminating on the dashboard, and possible issues with stability control.

2. What can cause OBDII code B2745 (Chevrolet) to trigger in relation to the Traction Control Switch Circuit?

Potential causes may include a faulty traction control switch, damaged wiring or connectors in the circuit, a malfunctioning traction control module, or issues with the vehicle's internal communication network.

3. How can I diagnose OBDII code B2745 (Chevrolet) for the Traction Control Switch Circuit?

Diagnosis typically involves using an OBDII scanner to retrieve the specific trouble code, inspecting the traction control switch and its connections, checking for any visible damage to wiring, and conducting further electrical testing if needed.

4. Can I still drive my vehicle with OBDII code B2745 (Chevrolet) affecting the Traction Control Switch Circuit?

While it may be possible to drive the vehicle with this code present, it is not recommended as it can impact the effectiveness of the traction control system, potentially compromising safety and vehicle handling.

5. How can I repair OBDII code B2745 (Chevrolet) related to the Traction Control Switch Circuit?

Repair options may include replacing the faulty traction control switch, repairing damaged wiring or connectors, resetting the traction control module, or seeking professional assistance for further diagnosis and repair.

6. Is it safe to continue driving if the traction control light is on due to OBDII code B2745 (Chevrolet)?

Driving with the traction control light on can be risky, as it indicates a potential issue with the system that affects vehicle stability and control. It is recommended to have the problem diagnosed and repaired as soon as possible.

7. Can a DIY enthusiast fix OBDII code B2745 (Chevrolet) linked to the Traction Control Switch Circuit?

Depending on the specific issue causing the code, some DIY repairs may be possible, such as replacing the traction control switch or repairing simple wiring problems. However, complex electrical or module issues may require professional intervention.

8. How does the Traction Control Switch Circuit impact the vehicle's performance?

The Traction Control Switch Circuit is crucial for controlling the traction and stability of the vehicle, especially in challenging road conditions. When this circuit is compromised, it can lead to reduced traction control effectiveness and potential handling issues.

9. Are there any preventative measures to avoid OBDII code B2745 (Chevrolet) affecting the Traction Control Switch Circuit?

To prevent this code, it is advisable to regularly inspect the traction control switch, maintain proper electrical connections, and promptly address any warning lights related to the traction control system.

10. How much does it typically cost to repair OBDII code B2745 (Chevrolet) related to the Traction Control Switch Circuit?

Repair costs can vary depending on the specific cause of the issue, the extent of the damage, and whether professional services are required. It's recommended to obtain estimates from reputable mechanics or service centers for an accurate cost assessment.