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Hi,
I don’t know what the issue is with the codes not clearing out but you might consider this.
I want to say this though that on most newer computers in newer cars it is recommended to not only disconnect the battery cables but to touch them each together.
I had read about this earlier and finally got to see it work on a 2001 Ford pickup of a neighborhood friend.
His light did the same thing and wouldn’t clear despite they had exchanged in a new battery because it wasn’t holding a charge.
His Dad used to run a garage and I had to talk the Dad into trying it. He is old school, so not a dummy!
I pull the negative terminal off the battery “first” anyways, so everything stops!
I now lay it over to the top of the positive terminal for about a half minute or less has worked!
This creates a grounding circuit throughout the whole supply system side of the car and drains all the things everywhere having integrated memory chips that can run on near nothing for power.
Car Computers don’t like running on a low voltage system and for some reason, they remember it!
This causes the need for a “hard” reset! The above is a hard reset!
Worth trying if it does come back.
Good luck!
Phil
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