My CANtieCAR won't connect to my 2007 Chrysler Town & Country in ELM327 mode. I'm using the "Car Scanner" Android app.
I believe the Town & Country uses J1850 VPW. I can connect to my 1997 F150 just fine, which uses J1850 PWM.
A cheap handheld OBD reader connects to my Town & Country without any issues.