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Used to describe installing an updated software program in one or more of the onboard computers. The jargon term reflash is also used.

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2004 Toyota Sequoia Limited with seperate immobilizer ecu and key programming

I am a locksmith and regularly make keys for Sequoia's. Your immobilizer ecu is indeed behind the instrument cluster. Its a black box about 2inch x 2inch with a white label on it. There is NO obd2 acc …
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1 vote

How can I know if a control unit is reprogrammable?

I assume this is a MS42 ECU. If yes then there are several methods for tuning it. If you can do it yourself or not, I have no clue. It takes some specialized tools and knowledge in a few different thi …
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