I am a mechanic who recently had a mesh implant in my chest,so i could not do my own repair on my loved 2000 durango. I ask them to change out my brake switch which went bad and asked them to perform an ABS coding and when the abs light kept coming on they said bring the durango back to reread the codes aand they found a code 63 abs. the their very good mechanic told me to flush the brake fluid to the abs sensor block to rear w2heels and the brakes were not engaging as they should .i released the brake line to rear brakes and started the vehicle and pumped the brake 6 times which flushed the sensor block and vale in the block cleared the valve within. no more ABS light and vehicle rear brakes engaged properly. thanks for your great assistance!