09-26-2019, 09:18 PM
OK, I'm confused here. The Erase button on my $20 reader turns off the check engine light and deletes all codes, as in, the ODB reader says "no codes." Now, the I/M pass indicator is NOT cleared, because it will not reset itself until it runs for X time after a code erase, so there is that. But when I take it to the garage after clearing the codes (for my own troubleshooting that failed), and try to tell them "It was showing code X before", they say "No codes there, sorry, can't help you, bring it back when the light comes back on."
That does not suggest to me that the codes are protected in some sanctuary.
(We're talking several ca. 2000-2010 Toyotas.)
That does not suggest to me that the codes are protected in some sanctuary.
(We're talking several ca. 2000-2010 Toyotas.)