| Audi 2002 A4 stereo |
|
| [Trunk Liner Removal/Pictures] [Stereo Removal/Pictures] [Clear Corner Mod/Pictures] [Keyfob Anatomy] |
Keyfob Anatomy:
When my key broke, I went to the dealer and they refused to fix it under warranty, so I bought one off of eBay and swapped all the parts around:
|
Transmitter circuit board, battery side. Chip marking: T023 M44C890C IM211054 The chip is an Atmel MARC4 4-bit microcontroller. |
|
Transmitter circuit board, button side. Chip marking: T148 U2741B 61118-3 The chip is an Atmel UHF FSK/ASK remote control transmitter. |
| Notice the Immobilizer chip glued in the left cavity. |
| Remove the Audi logo to reveal the screw beneath. |
All the pictures:
| ||||||||||||||||||||||||||||||||||||||||||||||||||
)
)
)
)
)
)
)
)
)
)
)
)
)
)