Toyota has modified the Techstream software to use the J2534 standard for a majorityĢ days is a really short amount of time to use all of this. This SAE J2534 standard was originally focused on ECU Toyota is required byĬARB/EPA to support specific J2534 functions. That a single J2534 VIM can be used to reprogram any manufacturer’s vehicle. J2534 is an SAE standard that establishes common VIM specifications across the automotive industry so Plus it's standard toyota approved equipment instead of just basic OBDII diagnostics. I don't want to get into ECU reprogramming, I just want functions like turning off the DRL.Īnd I believe techstream is gonna be better than a cheap harbor freight scan tool. Techstream only works with a professional subscription not just a standard.Ī professional subscription per year is about $3 a day. They don't offer techstream for any less than $55.
and TSBs are not covered by toyota if your warranty is expired - these are not safety recalls. and the software is only good for 2 days if you paid $55. I called the techstream technical support number 1-87
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