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Trying to flash a tune but trouble accessing diagnostic mode

420 Views 2 Replies 2 Participants Last post by  TrillHTX
I'm having a little issues, I'm trying to enter the diagnostic mode in my car to flash/write a tune.
But for some reason it's not letting me enter diagnostic mode. (Which is done by pressing and holding the start button but in this case it’s just powering on as usual without enter the diagnostic mode)
Am I doing something wrong or is a internal issues?
any help will be greatly appreciated.

Thank you.
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hold the start/stop button down until it turns green
still nothing. The car just powers on as normal. Doesn’t enter diagnostic mode as it used to.
1 - 3 of 3 Posts
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