Did you check if the ABS wire is connected. There is no reason for the person doing the tire change to do anything to the brake caliper or pads except to spread the pads a little to make it easier to put the caliper back on the bike. To spread the pads there is no need to pull the cover off the brake fluid reservoir either, you may want to pull the back calipers and check everything including the brake pads which may be worn out and the pistons on the calipers are extended to the max.
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08 FLTR candy red sunglo,with 2015 103 HO, V&H Dresser Duals with Monster Rounds, Power Vision tuner, Willy Shiny Wheels and Forks and a bunch of other stuff.