How to code and program when BMW tail light replacement?

Coding and reprogramming when BMW Tail light replacement is essential. This will help the new BMW tail light to work in sync with the vehicle. Because not every new part added will work in sync and be compatible with the vehicle. Follow the step-by-step instructions of experts from Eurocartool to learn how to use the ISTA software to program and code the BMW tail light.

Reasons to code and reprogram the BMW tail light

Car taillight is an important lighting device that helps to increase visibility and ensure safety when operating. However, for some reasons such as the lamp does not work or is broken or damaged, it must be replaced.

At times, fitting new taillights to your BMW can be difficult due to compatibility issues between new parts and vehicle models. In many cases, programming or coding is necessary to ensure that your vehicle’s system is synchronized with the newly installed taillights. This can be solved using software like ISTA for programming and coding purposes.

Another major reason is compatibility issues that arise due to differences in the region where the product is designed. Compatibility between car parts may vary depending on the region where your BMW vehicle was manufactured. For example, if you purchased a taillight designed for the European market, you will need to program or code it to match the European setting of your BMW.

It is important to note that there are many functional and hardware differences between the American and European taillights. It is therefore important to understand these differences specific to your BMW model before making a decision to install new taillights.

How to coding when BMW tail light replacement?

Following step-by-step instructions from experts from Eurocartool, you will be able to successfully code and reprogram your BMW taillights in no time.

Equipment that needs to be prepared needs to be prepared
In order to make the encryption process go smoothly, we recommend that you have the following software and equipment:

Steps to coding BMW tail light replacement

Before you coding when BMW tail light replacement, keep in mind that this coding process makes the new lights compatible with the vehicle’s control box.

Step 1: Park the car in a cool place, make sure that the lights are installed properly, connections such as cables, fuses must have a solid connection and remove any adapters connected to the car such as chargers, bluetooth …

Step 2: Connect the ICOM Next to the computer and car via a dedicated OBD II cable.
Step 3: Start ISTA program to check vehicle information, “Vehicle information” → “Control unit tree”

Step 2: Complete vehicle check, fault module will show yellow or red.
Yellow means wrong memory, red means no response, all green means no problem.


Step 3: Go to “Vehicle management” → “Troubleshooting” → “Fault memory”.
You can check the error illustration with the error code and double click on each item and display the corresponding detailed description.
In the description of the error code, you will see the text: “Control unit is not encoded, this is a newly installed lamp error that has not been coded to be compatible with the vehicle.



Step 4: “Vehicle Management” → “Control unit exchange”→ “Frontal Light Electronics Left (FLEL)” and “Frontal Light Electronics Right (FLER)” → “Display action plan”.


Step 5: Modules related to FLEL and FLER are displayed on the screen, click “Calculate action plan” to proceed with coding.


Step 6: Before performing encryption, a small screen will appear and ask you to confirm the action. Press “continue” to continue

Step 7: Encryption can take several hours. Once finished, the status of the previously failed modules will turn green.

Above are the steps for coding when BMW tail light replacement shared by experts from Eurocartool. With detailed steps, you can completely fix the error yourself immediately. If you have difficulties in the process, contact us via WhatsApp: +13155472355 for a free consultation.

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