2004 V10 TDI Touareg dual battery testing

After seeing some odd readings in VCDS I was concerned the 2nd battery on the V10 wasn't working. Good news is some quick tests showed everything is working properly. The electrical system on this truck is quite complex. For a nice overview check out the self study program: http://www.volkspage.net/technik/ssp/... http://www.volkspage.net/technik/ssp/...