Symptoms of a Bad or Failing ECM-Power Relay. The ECM, or electronic control module, is the computer responsible for controlling all of the engine management functions. It is the central control unit of most vehicles and controls a variety of functions, such as electrical system power distribution, emissions, ignition, and fuel systems.
1 Replace the tire if the top of Abe's head becomes uncovered by any of the grooves.  If your tires are only partially worn, find out how much. Stick a tread-depth gauge (about $5 at auto-parts stores) into each of the grooves on all four tires, as shown in the photo below. Then check how many inches of usable tread remain and match your driving to the tread wear.
Panic Stopping: How Much Tread Depth Do You Need? (03:42) Category: Tires. Facebook; Twitter; Google+; Pinterest; Mail; Tires are usually considered legally worn out when they reach 2/32 of remaining tread depth. Concerned that nearly worn out tires sacrifice too much wet traction, we compared the stopping distances of new tires to those with 4/32 and 2/32 tread depth. The Tire Rack's test results might...