Enabling Dynamic Light Assist (DLA) with VCDS can sometimes result in frustrating error codes. This article addresses a common issue: “Incorrectly Coded” errors in the power output modules for the headlamps after attempting to activate DLA. We’ll analyze a specific case and offer potential solutions.
A user reported receiving the following error codes after attempting to enable DLA using VCDS and OBD Eleven:
5276145 - Power Output Module for Left Headlamp C1081 F1 [137] - Incorrectly Coded
5276401 - Power Output Module for Right Headlamp C1082 F1 [137] - Incorrectly CodedThese errors, logged in module 4B (Multifunction Module), indicate a coding mismatch within the headlamp control modules. The user followed these steps:
Module 09 – Central Electrics (using OBD Eleven):
- Activated “Fernlicht_Assistent”
- Set “Erweiterte Fernlichtsteuerung” to AFS FLA Fernlicht (GLW:MDF)
- Enabled “Menusteuerung Fernlichtassistent” and “Menusteuerung Fernlichtassistent Worksteinstellung”
Module A5 – Front Sensor (using OBD Eleven):
- Set Byte 19 – Bit 0-3 to 00
- Set Byte 19 – Bit 4-7 to 30
- Set Byte 21 to Hex value 40
Module 4B – Multifunction Module (using VCDS):
- Set Byte 9 to Hex value 10
- Enabled Bit 6 in Byte 10 (and ensured Bit 5 was disabled)
- Enabled Bit 2 in Byte 11
While the user successfully enabled the “Dynamic Light Assist” option in the infotainment system, the “Dynamic Cornering” option disappeared. This raises the question of correct coding procedures and potential compatibility issues.
Several factors can contribute to “Incorrectly Coded” errors when activating Vcds Dynamic Light Assist:
- Incorrect Coding Values: Double-check each coding value entered in modules 09, A5, and 4B. A single incorrect digit can trigger these errors. Refer to reliable coding documentation specific to your vehicle model and year. Resources like the official Ross-Tech VCDS website or reputable online forums dedicated to your car model can provide accurate coding information.
- Incompatible Hardware/Software: DLA functionality depends on specific hardware (headlight modules, front camera) and software versions. Verify that your vehicle’s components support DLA. Using VCDS to scan for installed hardware and software versions in each relevant module is crucial for compatibility confirmation.
- Coding Sequence: The order in which coding changes are applied might be important. Consult official documentation for the recommended coding sequence. Some procedures require specific steps to be performed before others to ensure proper communication and functionality between modules.
- OBD Eleven Compatibility: While OBD Eleven is a popular tool, potential compatibility issues with specific vehicle models or coding procedures might exist. Consider verifying the coding changes using VCDS to rule out OBD Eleven as the source of the error.
To resolve the issue, consider the following:
- Review Coding Documentation: Thoroughly review the official coding documentation for your specific vehicle model and year. Compare your applied coding with the recommended values.
- Verify Hardware and Software Compatibility: Confirm that your vehicle possesses the necessary hardware and software versions to support DLA.
- Perform a Full System Scan: Use VCDS to perform a full system scan to identify any other underlying errors that might be contributing to the problem. Addressing these issues could resolve the “Incorrectly Coded” errors.
- Consult with Ross-Tech Support: If the problem persists, contact Ross-Tech directly for expert assistance. They can provide specific guidance based on your vehicle and error codes.
Successfully enabling VCDS dynamic light assist requires precise coding and a thorough understanding of your vehicle’s systems. By meticulously checking coding values, ensuring hardware/software compatibility, and systematically troubleshooting, you can overcome “Incorrectly Coded” errors and enjoy the benefits of DLA. Remember to always back up your original coding before making any changes.
