per L-58-0127-12 There is an ECU reflash to correct 1-2 and 2-1 shifts on the 08-11 LC and LX. Does anyone have the file for reflash? The calibration file is 36008200. If not I will join TIS to get the file. Anyone Ever done a reflash? It mentions a specific battery charger model but I'm guessing this is just to insure no power loss during reflash and that other chargers would work. I'm a little disappointed that Toyota didn't issue a recall. I've been chasing this issue and it seems like the TSB wasn't even well known. Thanks for the help.
Transmission software access? Techstream, TIS questions and request (1 Viewer)
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If I was trying to do an ECU reflash, I’d definitely want a legit version of registered Techstream and a real OBD2 cable, whether from a dealer or good shop. (Just saying that because most of what people use around here is not that).
I agree with @lx200inAR. The complete procedure is at this link. It mentions only factory certified techs can access the reflash files and the procedure is complex. The voltage is specified at 13.5, so just any charger may cause over voltage which according to the procedure can damage the ECU. Recalls are for safety issues. If there are any 10+ year old vehicles that have not had this done, a dealer would probably only charge an hour’s time. We’ll worth it IMHO to avoid the hassle and possible damage.
Watching with interest, since Techstream always flags this (highlights) in my system health check screen.
That being said, according to this doc (here, and image below), my TS shows that I have 360C2600, which appears to be the most recent for my 2008.
Where in TS did you go to find the reference to '36008200'? I cannot find any reference to an ID of that length without the fourth character as a letter. Could it be that you are running a 2010 and you are looking for the 360D8200? It's firmware, and these little nuances tend to be the difference between pure joy and boat anchor.
UPDATE: if you are 100% cowboy with a truck to spare, you can always get the file off of the highly trustworthy open internet. (de-fanging link because this is probably a bad idea in at least 19 ways, including everything from browser-based exploits to firmware that will turn your LC into a Prius) hxxps://ecu.design/toyota-lexus-scion-reprogramming/360d8200-ii-cuw-calibration-update-file/
That being said, according to this doc (here, and image below), my TS shows that I have 360C2600, which appears to be the most recent for my 2008.
Where in TS did you go to find the reference to '36008200'? I cannot find any reference to an ID of that length without the fourth character as a letter. Could it be that you are running a 2010 and you are looking for the 360D8200? It's firmware, and these little nuances tend to be the difference between pure joy and boat anchor.
UPDATE: if you are 100% cowboy with a truck to spare, you can always get the file off of the highly trustworthy open internet. (de-fanging link because this is probably a bad idea in at least 19 ways, including everything from browser-based exploits to firmware that will turn your LC into a Prius) hxxps://ecu.design/toyota-lexus-scion-reprogramming/360d8200-ii-cuw-calibration-update-file/
Many of the cables do not support full function, including ECU reflash, heck, the majority won't program TPMS sensors. The $500ish Mongoose cable is probably the best option, followed by the $90ish VX Diag cable (better than the cheap cables, but still limited). Then spend $65 for access to the TIS files and ECU files from Toyota.
Best case scenario, it flashes properly, or the cable won't support flashing and nothing happens.
Worst case is it causes issues and you damage the ECU and you have to replace at $1000 for the part.
There may be a non-dealer Toyota repair shop that has capability with lower shop rates.
I have the VX Diag and their version of Techstream, and it does not seem to support most ECU flashing. I recently replaced parking sensors, and can't calibrate the new ones. I haven't tried with the official Techstream software, but I am guessing it would make no difference, as the hacked software is "real" with a security bypass file.
Best case scenario, it flashes properly, or the cable won't support flashing and nothing happens.
Worst case is it causes issues and you damage the ECU and you have to replace at $1000 for the part.
There may be a non-dealer Toyota repair shop that has capability with lower shop rates.
I have the VX Diag and their version of Techstream, and it does not seem to support most ECU flashing. I recently replaced parking sensors, and can't calibrate the new ones. I haven't tried with the official Techstream software, but I am guessing it would make no difference, as the hacked software is "real" with a security bypass file.
The mongoose cable is the official. You can locate it through the ordering packages on Techstream. All “serial” cables certainly not created equal. There are tons of protocols and also the cables have to be pinned to the right receivers so the protocols will work. That’s before you even start talking about the quality of the connects and chips being used as receivers. If you want to risk that on a $20 Amazon cable, be my guest, but it’s not something I’d ever recommend someone doing.
This sounds like a great way to brick the transmission ECU.
