mixedgas=hauledass
Well-known member
Hey all,
So, I just went through a pretty weird situation that I ended up getting figured out, so I thought I would post it on here in the off chance that if someone else had this happen, they might stumble across this post. The following are some posts I made and copied from a Beetle forum I am apart of;
Hey everyone,
So, I went to go somewhere yesterday and I tripped into limp mode. Went and got my Blue Scanner (I have previously used it on this vehicle and it worked great) and plugged it into the port but it would not communicate. Tried my scanner in a few other vehicles and it communicates with them, so the issue is not the scanner. Since I last used my scanner on my Beetle, I have installed and aftermarket stereo, so I'm pretty sure the problem with the communication is due to this install. From what I have read online, the problem is usually due to the K Line. I saw the Ross-Tech article (Ross-Tech: VCDS: Afterrmarket Radio Problem) and I check the volts between 4-7 and it was 11.23v ... so I than cut the K-line loop in the radio harness (https://www.youtube.com/watch?v=NUTbp8adeeo) at still no communication. I watched another video that showed that simply unplugging one of the aftermarket radio jacks (https://www.youtube.com/watch?v=SEKUOCKs3no) No communication. I have checked fuses 12,29,32,34,37,41,42, and 43 and they are all good (Fuse chart 2003 beetle).
I have undone both battery terminals, held them together for 10sec, than apart for 10sec, than reattached...Nothing.
I don't mention it in this post, but the first thing I did was try and diagnose that there wasn't a problem with either of my two scanners I was try to connect with. The vehicles I was able to connect to were Ford and GM products. The following is an update explaining how I got the problem solved;
So, after ripping apart more modules and sensors one at a time, I got no further ahead. I called up a local VW specialist, I explained what I had done, and he told me to bring it over to him. I dropped off the vehicle to him, only to get a call back from him an hour later telling me his Vag-Com connected to the vehicle with no problems Pretty sure this all stems from the K-line fault with the aftermarket radio. When I hooked up both of my scanners, I fried only their ability to read from Pin 7. When I started this job I looked to rule out a problem with my scanners, so I plugged them into 2 GM products and 2 Ford products and the scanners worked fine. Ford and GM do not send diagnostics threw pin 7. The car gods got me.
I got on the phone with manufacturer of my scanner, Lemur, and after trouble shooting with a tech for a while, we were pretty certain that the issue was as mentioned above. They replaced one of the scanners under warranty and Fed/Ex'd it to my house....along with a free T-shirt. I can honestly say, the customer support I have received from this company was totally beyond the norm. I know you can get cheaper bluetooth readers, but I can't see how they could match this service...The new scanner connected immediately BTW.
Now, on to trying to solve the problem that sent my vehicle into limp mode to begin with. Underboost code, and a MAF code. But I'll save that for another thread. Thanks to everyone that tried to help anyway.
Maybe this will help someone out some day.
Cheers,
Brandon
So, I just went through a pretty weird situation that I ended up getting figured out, so I thought I would post it on here in the off chance that if someone else had this happen, they might stumble across this post. The following are some posts I made and copied from a Beetle forum I am apart of;
Hey everyone,
So, I went to go somewhere yesterday and I tripped into limp mode. Went and got my Blue Scanner (I have previously used it on this vehicle and it worked great) and plugged it into the port but it would not communicate. Tried my scanner in a few other vehicles and it communicates with them, so the issue is not the scanner. Since I last used my scanner on my Beetle, I have installed and aftermarket stereo, so I'm pretty sure the problem with the communication is due to this install. From what I have read online, the problem is usually due to the K Line. I saw the Ross-Tech article (Ross-Tech: VCDS: Afterrmarket Radio Problem) and I check the volts between 4-7 and it was 11.23v ... so I than cut the K-line loop in the radio harness (https://www.youtube.com/watch?v=NUTbp8adeeo) at still no communication. I watched another video that showed that simply unplugging one of the aftermarket radio jacks (https://www.youtube.com/watch?v=SEKUOCKs3no) No communication. I have checked fuses 12,29,32,34,37,41,42, and 43 and they are all good (Fuse chart 2003 beetle).
I have undone both battery terminals, held them together for 10sec, than apart for 10sec, than reattached...Nothing.
I don't mention it in this post, but the first thing I did was try and diagnose that there wasn't a problem with either of my two scanners I was try to connect with. The vehicles I was able to connect to were Ford and GM products. The following is an update explaining how I got the problem solved;
So, after ripping apart more modules and sensors one at a time, I got no further ahead. I called up a local VW specialist, I explained what I had done, and he told me to bring it over to him. I dropped off the vehicle to him, only to get a call back from him an hour later telling me his Vag-Com connected to the vehicle with no problems Pretty sure this all stems from the K-line fault with the aftermarket radio. When I hooked up both of my scanners, I fried only their ability to read from Pin 7. When I started this job I looked to rule out a problem with my scanners, so I plugged them into 2 GM products and 2 Ford products and the scanners worked fine. Ford and GM do not send diagnostics threw pin 7. The car gods got me.
I got on the phone with manufacturer of my scanner, Lemur, and after trouble shooting with a tech for a while, we were pretty certain that the issue was as mentioned above. They replaced one of the scanners under warranty and Fed/Ex'd it to my house....along with a free T-shirt. I can honestly say, the customer support I have received from this company was totally beyond the norm. I know you can get cheaper bluetooth readers, but I can't see how they could match this service...The new scanner connected immediately BTW.
Now, on to trying to solve the problem that sent my vehicle into limp mode to begin with. Underboost code, and a MAF code. But I'll save that for another thread. Thanks to everyone that tried to help anyway.
Maybe this will help someone out some day.
Cheers,
Brandon