Ross tech VCDS mods (vag com) for mk4 VW
difficulty: 2/5
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(2004-2005) DIY index
Introduction
This article shows VCDS mods for 98-2006 mk4 VW like door autolocking, horn confirmation, and more.
The Jetta became mk5 (5th generation) in 2005.5. For vagcom mods for the newer style mk5 or mk6 Jetta and Golf, see 1000q: mk5 DIY list.
The one behavior that cannot be changed with the vcds is the auto re-lock after 30 seconds of not opening the door. This is to prevent leaving the car unlocked if you accidentally press the key fob. If the door auto re-locks after about 30 seconds even if you did open the door or the overhead light doesn't come on even though it should be on, the door module is broken. See 1000q: door module replacement for the repair.
Parts
1 VCDS cable and software from Ross tech
VCDS tweaks and mods procedure for mk4 Jetta, Golf, Passat, and Beetle
For all procedures, first plug in your VCDS cable. The green LED should
turn on. Start the software and click "Select" to enter the
modules.
Click on "46 - Central Conv" to enter the comfort convenience
module (CCM).
The options are either in Coding or Adaptation. The current code is
shown under "Soft coding". The VW part number of your version of
CCM is shown under VAG number. There were a number of different CCM used
across the mk4 generation.
Unlock all doors with one press of the unlock button on the remote vs. unlock driver's door-first press, unlock all doors-second press
Click Coding and put the mouse over the first box highlighted below.
The following codes will set the following options. For example, if you
have a 4 door car and 4 power windows and want all-door-unlocking, enter
00259. Click "Do it!" to save and then "Close Controller,
Go Back" to safely close the module.
How to disable the doors automatically locking above 10 mph
Enter the Adaptation menu. Go to channel 3 by hitting up.
If the stored value in channel 3 is 0, the doors won't lock above 10
mph. If the value is 1, the doors lock above a certain speed. Click
Save when done.
How to set the doors to automatically unlock when you pull the key out of the ignition slot
Go to channel 4. The default state is 0. Enter 1 and save to enable this.
Disable the horn when you unlock the doors
CCM Adaptation channel 6 will turn the horn confirmation on or off when you
unlock the doors.
Disable the horn when you lock the doors
Channel 7 adjusts the horn confirmation when you lock the doors.
Channel 8 in the CCM - lights flash when you unlock the doors
Channel 8 in the CCM module adaptation lets you turn off the lights flash
when you unlock the doors. There's another channel to adjust the function
when you lock the doors but I didn't take a picture. This should be far
enough for you to learn how to use VCDS sofware. If you have any more
questions, feel free to ask in the VW Jetta TDI
forum and Audi A3 TDI forum at myturbodiesel.com.
Do you have more tips on using VCDS or have a request for a vag com mod? Please ask in the volkswagen diesel forum and help sections: myturbodiesel.com TDI forum or use the search bar below.