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      02-07-2021, 07:25 AM   #10
BigCJLZ4
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Drives: Z4
Join Date: Feb 2021
Location: Coventry UK

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I've seen a guy get detailed CTM / roof sensor info with a SNAP-ON diagnostic device, but they are several $$$ grand I think. But it does show that the codes are present "somewhere" on the system.
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