Scan tool ate my TPMS

[LS1M]

The dealer was re-mounting my tire (after they forgot a chunk of rubber in it) and re-programming the tire pressure system, when the service manager came out holding my obd2 Bluetooth adapter. Said every time they plug it in, the flat-tire light comes on. So for about an hour, there are a half-dozen guys hovering around my car & the service manager says the TPMS module is dead, and he thinks my scan tool broke it but can't prove it. They ordered me a new one & installed it, but is that possible? I was wondering if there was a pin dedicated to the tire pressure system, and if so, then I guess it's feasible that the scan tool might have tried to talk on that pin when testing for the right protocol. So... I decided to avoid the problem. I made an extension cable that just carries pins 4, 5, 6, 14 & 16 (two grounds, canbus high & low, plus power)




So far so good. And at least I can see the lights on the BT without standing on my head


btw, I have part numbers if anyone is interested
Red shell: Delphi 12110252
Retaining clip: Delphi 12110254
Cap: CaPlugs VRF-500x1250-16
Male pins: Delphi 12047581
Female pins: Delphi 12129373-L
Black (female) connector: Delphi 12110250
Cable was a euthanized cat5

[LS1M]

It happened again. I bought an Android tablet and a holder, put it in the car this morning. Went to start up after work and 3 or 4 lights were on - ABS, traction, engine - and the a/c wouldn't get cold. Turned the car off, unplugged the BT adapter, started it back up & everything is fine. Cleared the code with Torque - said something about network failure. Sounds like the BT adapter is messing up the CAN bus.


Anybody else ever seen this happen??

[cjd]

I've seen something like this before, but not this specifically. Sucks. Got warranty on the adapter?

[LS1M]

Yes. You think the adapter is bad?

[cjd]

Originally Posted by LS1M

Yes. You think the adapter is bad?

Well, if it doesn't seem to actually cause permanent damage, try it on another car for a bit? (loan it to someone or something?) Who knows exactly what's up with it, possibly nothing. But, I can say that I've seen odder things over the years working with electronics and computers. I've seen a monitor that worked everywhere but an electrician's home, peripherals or hardware that, when plugged in, caused random stupid-ness or outright failures (even brand-new stuff!)

Otherwise, reach out to the company and inquire. It looks like it's not a cheap knock-off so hopefully they're actually responsive and whatnot.

C