All of our Current Interfaces have Activation built-in, so
VCDS should always be Fully Activated once it has been tested on a car.
If you have an older Interface without built-in Activation, or have purchased an Interface somewhere other than Ross-Tech, click here for Activation instructions for VCDS-Lite.
All of our Current Interfaces have Activation built-in, so VCDS will always be Fully Registered/Activated. If you have an older Interface without built-in Activation, or have purchased an Interface somewhere other than Ross-Tech, VCDS-Lite will operate in Shareware mode until it is Activated. The differences between Shareware and fully registered/activated versions are listed near the bottom of each function page in the Online Demo / Manual and in the Function Chart.2.3 Is Product Support included in the price?
Absolutely. If you have a question or problem, please post it in the Ross-Tech Foum, mail it to us directly, or give us a call. However, please understand that we don't know everything about every VW/Audi/SEAT/Skoda ever made. Information about telephone tech support for diagnostic questions can be found here.2.4 Why can't I get VCDS to communicate at all?
Check the following:
Note: If you test the COM port, but an hourglass appears, you may have an IRQ conflict. This may not show up in Device Manager as a conflict. But, try this:
If all else fails, feel free to call or email us, making sure to provide the brand and model of vehicle, brand and model of PC, and version of VCDS.2.5 VCDS communicates, but it's "flaky".
The diagnostic protocols require a degree of real-time response from the diagnostic tool. Certain other programs and services can prevent VCDS from responding in the timely fashion that the protocols require. Some control modules are fussier about this than others. Fixes:
Make sure you are using the latest version of VCDS. If you have any other programs running, close them. If you have any of the followingactive on your computer, turn them off:
If all else fails, feel free to call or email us, making sure to provide the brand and model of vehicle, brand and model of PC, and version of VCDS.2.6 Why does my dash BEEP when I access my ABS controller?
In many vehicles, there will be a series of BEEPs from the dash when you access the ABS controller (and the ABS light will be ON while you are talking to it). This perfectly normal and is done to notify the driver that the ABS is non-functional while in diagnostic mode.2.7 Are there any Fault-Codes that can and should be ignored?
Yes. Most 1995 and earlier Bosch ECU's will show you a DTC 00513 - Engine Speed Sensor (G28) if you scan them when the engine
is not running. This fault code goes away by itself once you start the engine. If this sensor were truly defective, the
engine would not run at all! Please ignore this code.
In addition, many Automatic Transmission Control Modules will show a DTC 00526 or 17087 that indicates a faulty brake light switch. This can also be ignored and will not appear if you press the brakes once before checking for Fault Codes.
Every VW/Audi dealer in the world is assigned a unique Work Shop Code (WSC). Whenever certain changes
are made to a control module (such as Coding or
Adaptation), the factory scan tool sends its WSC information to
the control module and the control module records it for posterity.
VCDS will accept a WSC once on the Options Screen and it is not easily changed (contact Ross-Tech if you have entered it in error). If you enter a WSC there, VCDS will send that fixed WSC to the control modules exactly how the factory scan tools do. If you leave the WSC on the Options Screen at its default of 00000, VCDS will operate in "stealth mode". Instead of sending a fixed WSC, it will put back whatever was already in the control module.
When a brand new control module is installed, it may not have any previous WSC info stored, so the default setting of VCDS of 00000 may cause the control module to reject the coding. In these cases you should enter any non-zero number with the correct number of digits (such as 12345) in the WSC field on the Coding screen.
VCDS uses these to record a lot of the data being exchanged between the car and your PC. Having these can be very useful if there is some sort of unexpected problem communicating with a controller in your car.By default, the Debug Level is set to 0. If you're having a problem, we may ask you to set the Debug level to something other than zero, and to send us a specific Debug file. The best way to send Debug files is to ZIP them first. Contact Ross-Tech if you need assistance doing this.