I am in search for a method of scanning the CAN on my car using a cheap ELM327 chip.
I can query the ECU (made by Denso) without issue, however when I attempt to set the ELM327 scanner into promiscuous mode (via ATMA), I am not presented with any information back - that is, I am required to send commands to get a response.
I have confirmed with a dealer that many things in my car can be queried, using their dealer level scan tool (A DS-II made by Denso, which is very similar to the Toyota Intelligent Tester), such as unlocking the boot / trunk by plugging in their dealer level scan tool to the OBD-II port and talking to the boot's computer.
What I am wondering is, where do I start? Is there a software package for Windows / Linux / OSX that I can? What about hardware (Will my ELM 327 OBD-II device work)?