help: code B1795 occupant detection ECU corrupted software
Thread Starter
Driver School Candidate
Joined: Mar 2011
Posts: 6
Likes: 0
From: MA
help: code B1795 occupant detection ECU corrupted software
Hi, I have 2007 Lexus IS 350
First I got the code B1795 (which is strange as the car was never in collision nor water)
then I bought another occupant detection ECU 89952-0W060 plugged it in cleared the DTCs, all codes gone but abnormal calibration showed up B1797, then I started the zero calibration but got the wire error. (Not even sure what that means and I checked the wires and there is no breaks nor shorts)
Then went back to the service manuals and it said that you have to copy the memory from old ECU to the new one when you replace this ECU (probably makes sense)
(Not thinking much ) I did that.
Then guess what the code B1795 showed up again. (back to original issue)
Now I'm thinking that it might be just the software corrupted issue. I'm wondering if there is someone close by (Boston MA) and I should just download the from the good working memory and upload it to mine.
unless there is a way to do this via techstream and send it over the internet
What do you think?
First I got the code B1795 (which is strange as the car was never in collision nor water)
then I bought another occupant detection ECU 89952-0W060 plugged it in cleared the DTCs, all codes gone but abnormal calibration showed up B1797, then I started the zero calibration but got the wire error. (Not even sure what that means and I checked the wires and there is no breaks nor shorts)
Then went back to the service manuals and it said that you have to copy the memory from old ECU to the new one when you replace this ECU (probably makes sense)
(Not thinking much ) I did that.
Then guess what the code B1795 showed up again. (back to original issue)
Now I'm thinking that it might be just the software corrupted issue. I'm wondering if there is someone close by (Boston MA) and I should just download the from the good working memory and upload it to mine.
unless there is a way to do this via techstream and send it over the internet
What do you think?
Last edited by is2fast; Dec 11, 2019 at 07:42 AM.
Thread Starter
Driver School Candidate
Joined: Mar 2011
Posts: 6
Likes: 0
From: MA
Yes it was transfer data, at that time I borrowed the Autel MS906 MaxiSys tool but I currently have the Techstream and a Mongoose cable this one
Thread Starter
Driver School Candidate
Joined: Mar 2011
Posts: 6
Likes: 0
From: MA
I'm about to give up, I replaced this ECU, tested another gel mat, tested for any shorts in the wire harness between this ECU and the main SRS one. I'm running out of options to try out here. Unless I omitted something.
BTW here is the current live data output (measured with no one on the seat) B1795 present
also when I manage to temporarily clear B1795 (still having B1797) this is what I see
Maybe someone will notice something I didn't
BTW here is the current live data output (measured with no one on the seat) B1795 present
also when I manage to temporarily clear B1795 (still having B1797) this is what I see
Maybe someone will notice something I didn't
WAG here, but did you actually have anyone in the seat? I would assume that if you updated the ecu, and ran calibration. What do the instructions state? It probably has to register a value of some sort. Again WAG from me here.
Thread
Thread Starter
Forum
Replies
Last Post
1WILLY1
SC - 1st Gen (1992-2000)
4
Jul 27, 2010 08:51 PM
