B1246 DTC Code: Troubleshooting and Solutions


In this comprehensive article, we will delve into the intricacies of the B1246 Diagnostic Trouble Code (DTC) and uncover the potential causes and solutions for this particular code. Whether you are a seasoned mechanic or an automotive enthusiast, understanding this code is essential to efficiently diagnose and resolve the underlying issue. In the following sections, we will discuss the meaning of the B1246 DTC, its possible triggers, step-by-step troubleshooting procedures, and frequently asked questions related to this code.

Understanding the B1246 DTC Code

The B1246 DTC code is specific to automotive systems and refers to a fault associated with the Electronic Vehicle Information Center (EVIC). This particular code signifies a malfunction within the EVIC module, which controls various functions such as displaying essential information on the instrument cluster, providing access to vehicle settings, and managing alerts and warnings. When the B1246 code is triggered, it indicates that the EVIC module has detected a problem and requires attention.

Possible Causes of the B1246 DTC Code

Several factors can contribute to the triggering of the B1246 DTC code. Here are some potential causes to consider when encountering this code:

  1. Faulty EVIC module: One of the primary culprits for the B1246 code is a malfunctioning EVIC module. Over time, electronic modules can deteriorate due to component failures or electrical issues, leading to the code being triggered.

  2. Wiring or connector problems: Damaged or loose wiring connections between the EVIC module and its associated components can disrupt the proper functioning of the module, potentially triggering the B1246 code. It is essential to inspect the wiring and connectors for any signs of wear, corrosion, or disconnections.

  3. Software or firmware glitches: In rare cases, the B1246 DTC code may be a result of software or firmware glitches within the EVIC module. These glitches can arise due to incompatible software updates, software bugs, or programming errors.

Troubleshooting the B1246 DTC Code

Now, let’s explore the step-by-step troubleshooting process to identify and resolve the issue related to the B1246 DTC code:

Step 1: Inspecting the EVIC Module

  • Start by locating the EVIC module in your vehicle. Refer to the vehicle’s service manual or OEM documentation for specific instructions.
  • Remove the necessary panels or components to gain access to the EVIC module.
  • Inspect the module for physical damage, such as water ingress, burnt circuitry, or loose connections. If any issues are detected, repair or replace the module accordingly.

Step 2: Checking Wiring and Connectors

  • Carefully examine the wiring harness connected to the EVIC module. Look for any signs of frayed or damaged wires, loose connections, or corrosion.
  • If any wiring issues are found, repair or replace the affected wiring harness.
  • Similarly, inspect the connectors between the module and other associated components. Clean the connectors if any corrosion is present, ensuring a good electrical connection.

Step 3: Scan for Diagnostic Trouble Codes

  • Connect a compatible diagnostic scanner to the OBD-II port of your vehicle.
  • Retrieve and analyze any additional DTCs present in the system.
  • Address and resolve any other DTCs before retesting the B1246 code.

Step 4: Perform Software/Firmware Updates

  • Check with the vehicle manufacturer or authorized service center for any available software or firmware updates for the EVIC module.
  • Download and install the appropriate updates following the provided instructions.
  • Clear the DTCs and test the vehicle to verify if the B1246 code reoccurs.

Frequently Asked Questions (FAQs)

Q1: Can I continue driving my vehicle if the B1246 DTC code is triggered? A1: In most cases, the B1246 code does not pose an immediate risk to the drivability or safety of the vehicle. However, it is recommended to address the issue promptly to avoid any potential underlying problems that may impact the overall performance or functionality of the EVIC module.

Q2: Can I reset the B1246 DTC code without fixing the underlying cause? A2: While it is possible to clear the DTC code using a diagnostic scanner, it is not advisable to do so without addressing the underlying cause. Resetting the code without resolving the issue can lead to recurring problems and potentially mask other existing or future faults.

Q3: Can a DIY enthusiast troubleshoot and fix the B1246 DTC code themselves? A3: Depending on your mechanical knowledge, experience, and available tools, it may be feasible to perform basic troubleshooting steps such as inspecting wiring connections and modules. However, more complex issues may require professional expertise and specialized equipment to accurately diagnose and repair the fault associated with the B1246 code.


The B1246 DTC code can be a perplexing problem for vehicle owners, but with the right understanding and knowledge, you can successfully diagnose and resolve the underlying issue. By following the step-by-step troubleshooting procedures outlined in this article, you can identify the potential causes and take appropriate actions to rectify the fault in the EVIC module. Remember to consult the vehicle’s service manual or seek professional assistance if needed. Safeguard the performance and functionality of your vehicle by addressing the B1246 DTC code promptly and effectively.

About author


Meet Sam Mitchell, your experienced and reliable guide in the complex world of car fault codes. With a robust career spanning over 15 years as a professional car mechanic, John has the skills, knowledge, and practical experience to help you navigate car fault issues with confidence.


Leave a Reply