VW Beetle Forum banner

Throttle Body Adaptation - 1999 VW 2.0L 5 Speed Beetle

6986 Views 2 Replies 3 Participants Last post by  Jeff2

Recently I had to get my alternator replaced and a new battery. After having both replaced, I have had difficulty getting my car to start up. When I turn the key, the car will start but stall immediately. A mechanic read me a code of P1543 using his OBD-II. After a little bit of research, it appears that the issue is the throttle body and it needs to go through a throttle body adaptation process. Is this the likely scenario?

If so, how do I go about fixing this? What VAG-COM/tool would be the best to use that isn't too expensive and would allow me to do a throttle body adaptation as well? I have seen multiple kinds (dongles, vagcom unit, bluetooth) but am not sure which would be the best to go for.

How would I find out how to use it properly to do a throttle body adaption since it'll be my first time using a tool like this. Is there a way to know if my car is a cable throttle or DBW (saw a few things talking about this)?

Sorry for all the questions and thank you for any help you can provide me. I'm hoping to get this fixed as soon as possible, I miss my bug!
1 - 3 of 3 Posts
It's absolutely a "likely scenario". The computer lost its memory when the battery was disconnected. After you perform the adaptation, the car should run much better. If you want the "check engine" light to go away quickly, you would likely need to use an OBD-II scanner to clear the codes. If not, I believe the light will go out on its own, eventually.
1 - 3 of 3 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.