When attempting to reprogram a non-functional key fob on an Audi A3 using VCDS (HEX-V2), accessing module 46 (Central Convenience) revealed an issue within Measuring Blocks. While Group 10 showed no response from the key, indicating it wasn’t recognized, Group 11 displayed a “Not OK” status despite acknowledging button presses. Group 12 confirmed the immobilizer recognized the key in the ignition, aligning with the car’s ability to start.
Following the key reprogramming procedure within module 46, Channel 00 was read and saved. Channel 01 was then selected, the number of keys was set to “1”, and the change was saved. Holding the unlock button on the fob triggered flashing hazard lights, seemingly confirming successful programming.
However, the key fob remained non-operational after exiting VCDS. Returning to Measuring Blocks, Group 11 persistently displayed the “Not OK” status for the key fob. The key fob’s red LED illuminated with button presses, and new batteries were installed, eliminating those as potential causes.
The provided Auto-Scan from VCDS reveals several fault codes across various modules, including a malfunction within module 46 (Central Convenience). While the Auto-Scan doesn’t directly pinpoint the key fob issue, it highlights potential underlying problems within the car’s electrical system that could be contributing to the persistent “Not OK” status in Group 11. Further diagnosis is required to determine the root cause and resolve the key fob programming problem. The complete Auto-Scan is included below for detailed analysis.
Friday,14,February,2020,09:04:32:39323 VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64 VCDS Version: 19.6.2.0 (x64) HEX-V2 CB: 0.4508.4 Data version: 20190930 DS308.0 www.Ross-Tech.com VIN: WAUMF78P16A171124 License Plate: Mileage: 295180km-183416mi Repair Order: -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Chassis Type: 8P (1K0) Scan: 01 02 03 08 09 15 16 17 19 25 42 44 46 47 52 56 62 72 VIN: WAUMF78P16A171124 Mileage: 295180km-183416miles 00-Steering Angle Sensor -- Status: OK 0000 01-Engine -- Status: Malfunction 0010 02-Auto Trans -- Status: OK 0000 03-ABS Brakes -- Status: OK 0000 08-Auto HVAC -- Status: Sporadic communication error 1000 09-Cent. Elect. -- Status: Malfunction 0010 15-Airbags -- Status: OK 0000 16-Steering wheel -- Status: Malfunction 0010 17-Instruments -- Status: Malfunction 0010 19-CAN Gateway -- Status: Malfunction 0010 25-Immobilizer -- Status: OK 0000 42-Door Elect, Driver -- Status: OK 0000 44-Steering Assist -- Status: OK 0000 46-Central Conv. -- Status: Malfunction 0010 47-Sound System -- Status: OK 0000 52-Door Elect, Pass. -- Status: OK 0000 56-Radio -- Status: Cannot be reached 1100 62-Door, Rear Left -- Status: OK 0000 72-Door, Rear Right -- Status: OK 0000 ...(truncated for brevity)...