Subaru dealership "cannot communicate with my car's ECU"

[morswestford]

the parking garage who lost my key fob had 3 locksmiths come. only 1 seemed capable of doing it. but his software did not work with subaru brz or something. not sure why not.

luckily i was able to uber home and get my only backup fob which im using now.

Originally Posted by Decep

That does sound like quite a mess. I'd try an indie locksmith, i had one copy my current key to an aftermarket key (obviously doesnt help your AC issues)

[morswestford]

do you think i should replace my OBD2 port? Mike at Xero-Limit suggested that. But i was then able to use my OBD2 port and software (Carista) just fine to connect. Maybe the dealership requires a better connection? Who knows. Maybe I should replace it?

Originally Posted by ls1ac

Back to really simple. Had a friend that my "good" reader would not work, but the cheep one would. It seems that the connecter in the car is not great. I used an extender cord with the good reader and all worked well.


Just a thought.

[misterfly]

Just for fun do you have tried to read your ecu with techstream ?

Originally Posted by morswestford

do you think i should replace my OBD2 port? Mike at Xero-Limit suggested that. But i was then able to use my OBD2 port and software (Carista) just fine to connect. Maybe the dealership requires a better connection? Who knows. Maybe I should replace it?

[morswestford]

no, no idea what techstream is, please inform

Originally Posted by misterfly

Just for fun do you have tried to read your ecu with techstream ?

[Ragin Gti]

Not that is helpful due to the problems you currently have, but every Subaru will have a code for the AC Sunload sensor if you scan it inside a building. This is not a problem. If you put the car outside and scan it the code won’t be there. Do not try to “fix” this code.


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[misterfly]

Techstream is the software toyota use for all is model, you can do anything with this like programming key etc, the only thing you cannot do is play with the odometer, im sure it's will work with the brz, if it's work with the 86 it's will work with your car,



For the cable with a copy of the sotware here : https://www.amazon.com/capital_auto-...=fsclp_pl_dp_9



You can find more recent software problably on this forum or on the web

Originally Posted by morswestford

no, no idea what techstream is, please inform

[morswestford]

my check engine light has been on for months due to the sunload sensor and my car is always parked outside. my car is never inside. not sure what your talking about. i scanned it using my own tool outside, it shows the ac sunload sensor. how does that have anything to do with being inside then?

Originally Posted by Ragin Gti

Not that is helpful due to the problems you currently have, but every Subaru will have a code for the AC Sunload sensor if you scan it inside a building. This is not a problem. If you put the car outside and scan it the code won’t be there. Do not try to “fix” this code.


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[morswestford]

thanks but i would have absolutely no clue on how to use that tool to reprogram my key and i would be hesitant in using it because who knows if i mess something up in using it, but thx tho.

Originally Posted by misterfly

Techstream is the software toyota use for all is model, you can do anything with this like programming key etc, the only thing you cannot do is play with the odometer, im sure it's will work with the brz, if it's work with the 86 it's will work with your car,



For the cable with a copy of the sotware here : https://www.amazon.com/capital_auto-...=fsclp_pl_dp_9



You can find more recent software problably on this forum or on the web

[Ragin Gti]

That code will not turn the check engine light on. There’s something else causing it.


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[Dave-ROR]

Originally Posted by morswestford

my check engine light has been on for months due to the sunload sensor and my car is always parked outside. my car is never inside. not sure what your talking about. i scanned it using my own tool outside, it shows the ac sunload sensor. how does that have anything to do with being inside then?

To be fair you never mentioned where you scanned it but did mention your local shop tried to fix it. *They* would have scanned it indoors, so it's not unreasonable for him to assume it was scanned indoors.

[Dave-ROR]

Originally Posted by morswestford

thanks but i would have absolutely no clue on how to use that tool to reprogram my key and i would be hesitant in using it because who knows if i mess something up in using it, but thx tho.

Outside of getting it running the first time, it's an easy tool to use. You won't mess anything up by going through the key programming. Granted I haven't used it for that since I haven't needed to. I think @Opie might have though. We've used it to troubleshoot other stuff on these cars though...

[morswestford]

well when i run the diagnostics for the check engine light. thats what the code returns. Code B14A1. Sunload sensor circuit. No other codes are shown except that.

Originally Posted by Ragin Gti

That code will not turn the check engine light on. There’s something else causing it.


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[morswestford]

true my mistake,i did run the diagnostics using my car and its always outside, but when the dealership ran it using their software they are inside.

Originally Posted by Dave-ROR

To be fair you never mentioned where you scanned it but did mention your local shop tried to fix it. *They* would have scanned it indoors, so it's not unreasonable for him to assume it was scanned indoors.

[morswestford]

ok thx ill consider it

Originally Posted by Dave-ROR

Outside of getting it running the first time, it's an easy tool to use. You won't mess anything up by going through the key programming. Granted I haven't used it for that since I haven't needed to. I think @Opie might have though. We've used it to troubleshoot other stuff on these cars though...