The BMW 328i F34 is equipped with an Electronic Power Steering (EPS) system that requires proper coding for it to operate efficiently. In some cases, after an EPS replacement, the steering might not function correctly, and an EPS warning light may appear on the dashboard. This article will guide you on how to use the Launch X431 PAD V to perform EPS coding for the BMW 328i F34.
Trouble Codes:
When diagnosing the EPS issue using the Launch X431 PAD V Link, you may come across the following trouble codes:
1. 4823CB: EPS No Current Coding Data Stored
2. 4823CC: PSC Control Unit is not encoded for the vehicle
Procedures:
After BMW Vehicle identification in Launch X431,select “Coding/Program”à”Coding”
Select “EPS(Electronic Power Steering)”
It will take long time to encode,press “YES”
EPS ECU did not read out the corresponding code configuration.The prossible value by calculating are as follows,select the desired data integrity level
Select “F020-18-11-568”
Coding…please wait
Recoding has been completed
Now back to clear DTCs
Procedures:
To resolve the EPS coding issue, follow the steps below:
Step 1: BMW Vehicle Identification
Connect the Launch X431 PAD V Link to the OBD-II port of the BMW 328i F34. Open the Launch X431 software and select “Coding/Program” followed by “Coding.” Allow the device to establish communication with the vehicle.
Step 2: Select EPS (Electronic Power Steering)
Once the vehicle is identified, navigate to the “EPS (Electronic Power Steering)” section within the coding options. Note that the coding process may take some time, so be patient.
Step 3: Start the Coding Process
After selecting “EPS,” the device will prompt you to start the coding process. Press “YES” to proceed.
Step 4: Code Configuration
In some cases, the EPS Electronic Control Unit (ECU) may not read out the corresponding code configuration automatically. In such instances, you will be presented with a list of possible values to choose from. Select the desired data integrity level, such as “F020-18-11-568,” and proceed with the coding process.
Step 5: Coding in Progress
The Launch X431 PAD V Link will display a message indicating that the coding process is in progress. Please wait until it is completed.
Step 6: Recoding Complete
Once the coding process is finished, a message will appear on the device, stating that the recoding has been completed successfully.
Step 7: Clear Diagnostic Trouble Codes (DTCs)
To ensure that all potential issues are resolved, go back to the main menu and select the option to clear the Diagnostic Trouble Codes (DTCs). This step will reset any stored error codes and allow you to start with a clean slate.
Conclusion:
By following the outlined steps using the Launch X431 PAD V Link, you can successfully perform EPS coding for the BMW 328i F34. Remember to clear any DTCs after the coding process to ensure that the EPS system functions properly. If you encounter any difficulties or persisting issues, it is recommended to consult a professional technician or contact the Launch X431 support team for further assistance.
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