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Join Date: Jan 2017
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Not where I come from...................the TB if not working right posts TB codes almost instantly. A safety thing, ask Toyota.
'If I delete the codes the 1001 and 1564 come up immediately when I re read them.'
The 'immediately' is telling you those are HARD faults that need to be fixed first, they may well cure the last one too. You have a device to device communication issue there it appears.
Yours and do as you will. Based on the TB logic though, you have a lot more parts to switch out yet since it had nothing to do with your codes.
Last edited by amc49; 10-04-2018 at 01:43 PM.