You replace them. It's quite simple and involves only removing the brake caliper and caliper mounting.
Possible cause thermostat bad stuck open
Duct tape
Bad switch. Easy fix- cheap part!
1998 Dodge Caravan Speedometer Has a second connector attached with a white pigtail. What is that used for and will it operate without it?
Usually you replace the egr valve.
There's a TSB on this problem.
You need to BClear. What is wrong with it?
Replace the cam sensor
Fix the cause, or keep adding fluid.
Go to a Car Repair Shop
you fix whatever is making it come on :-)
There is no repair procedure, it is a replacement only item.