i have a 94 z28 i store it winters and no problems until this spring when i noticed my abs ,parkingbrake, and my rad is low lights wont turn off.the rad is full same with over flow tank. it heats up and cools down like normal.ihave been told its the sensor for theblock .as for the abs and brake lights dont no.thanks for any help

sensor most likely corroded.

check your ABS fuse could be blown