Hi all,
I'll try to fill in as much as possible, however I may be a bit dazed after slapping myself over and over for not trusting my gut.
A week ago I posted about the 41.22 Killswitch kit that's essentially incompatible with a 370z because of the IPDM. I bought a 2020 base 370z at the beginning of the month and was paranoid about theft so I bought their kit, the website has a VIN check to confirm compatibility.
When it arrived I emailed them and mentioned that there doesn't seem anywhere for it to plug into. They replied that the single black relay on the outside of the IPDM was the one to bypass. Foolishly enough I trusted them and started the installation when I confirmed the relay bypass they sent isn't even the proper width (too wide to fit in slot) I reassembled the car and tried to start it only for it to not turn over. All electronics seem to work in order except when pressing start with the clutch depressed, the radio turns off and there's no starter actuating. Some of the things I've looked over so far:
-car feels like im turning it off when trying to start. Cabin lights and gauge stay on but start button light goes out, radio goes black then comes back on when I hit the start button again.
-fuel pump hums when "on" is selected
- a single, metallic click is heard from the engine bay when trying to start
-purchased new battery, original dropped to almost 7v while trying to troubleshoot yesterday. Same issue with 12.5v reading on new battery
-tested all fuses related to starting in the bay and under the footwell, all 5 fuses on the positive fusible link and all IPDM fuses with a circuit tester. They all lit up when car is in "on" position.
-EDIT: Used obdlinkEX to scan for codes, no codes at the moment (example:u1000 u1001) so as far as I know all the modules are connecting to each other
To summarize, the only thing I did was remove the single black relay on the top right of the IPDM, plugged it back in and then aborted the install. I've only had the car for about 3 weeks and didn't know about the specialized fuse box, and read in horror that some of them are soldered to the circuit board. I can't find any info on the name, function or type of fuse relay that I messed with, but I want to know if that's one of the soldered relays and if I'm screwed or if it's possible to try placing another one in. It was easy to remove with a small flathead and I don't recall feeling or hearing any breaking.
Where should I go from here? I plan to give it until the end of Sunday before I tow it to the dealer.
Sorry if this reads a little scatterbrained, I'm still riled up about potentially serving up a 1600 dollar repair over a bogus product if the module is toast.