Part 4 of a 6 part series. Go here to access the full set. WHO USES IT: ISO15765-4, dual-wire CAN, is mandatory on ALL North American vehicles sold from Model Year 2008 and forward for Powertrain communications. It was phased in by OEMs starting in MY2004, so refer the specific wiring...
Providing airbag info is frowned upon here because of liability issues I am sure of.
The squib network is resistance based.
It doesnt take much to set off a 2004 airbag.
So, remember, before probing any circuits, make sure the battery has been disconnected for at least 10minutes to remove any residual.
Cuz I actually saw a deployment on a 2004 chysler concorde. Dudes face was pretty mashed up, to say the least.
I was a tech for mopar back then, from 1998 I think to 2005. Major recalls back then for squibs on minivans. Since the PT cruiser was not a hot seller as much as the caravans, mopar didnt include those. But trust, its the same controller.
oh btw I am french so sometimes, I may write english wrong or misunderstand so I may have read wrong 2006 and later. Does that mean 2006 an older, or does that mean 2006 and up cuz that is not clear in my head.
Thank you for all of this feeback, Nickb2. No worries; no way you sound condescending; I'll be first to admit that I'm mostly clueless on data bus stuff, although that 60 ohm thing does remind me that I believe that that test was the final piece of info telling me that my brother's '98 Caravan had a bad BCM. Again, I had none of the recommended tools for that job, and still nailed it with a basic multimeter. It didn't happen overnight...Re: CRP123, this was my first and still only OBDII scanner, bought in 2015 based on recommend from my friend the stud mechanic who had it in his collection. I am not averse to looking at other scanners, if they are good value for how I roll. I buy strategically when possible.
Yes, I will disconnect the battery for sure. I will look closely at the driver's seatbelt wiring, as this has 206K miles on it. As long as I keep the airbags from deploying I don't see why I can't search for opens the usual way. There's only so many wires, even on an airbag system. If push comes to shove, I have no issue getting another controller in there.
So using the factory service manual, I only see 1 SCI connection to the ORC, and no CAN bus. It goes to the warning light at the cluster, and then winds up at pin 2 of the DLC. I think I'll test for continuity between the cluster and the connector at the ORC. I removed the center console to expose the ORC, and there is a static ground under a bolt, so I'll clean that up. Also the radio is on the SCI bus, and I'll probably unplug that to see if changes anything.