First, sorry for the 'hijack', but since the topic is the same and the date current, why are you upset?

Anyway, what you suggest I have read before and tried repeatedly before posting, and no blinking at all. As I said, the service docs say that FIRST the check engine light must be off. THAT is what I find confusing, so my question - to re-phrase - does the light actually need to be off first, or am I misinterpreting that? If not, is there a way to turn it off without disconnecting the battery and thus re-setting the codes. Or, am I dealing with a mal-functioning LED diagnostic circuit?

If anyone has the answer or other useful suggestions, I would much appreciate. Thank-you.

Steve

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'91 MB 190E 2.3
'08 RAV4 Ltd 3.5
'83 Lazy Daze m'home 5.7