I have a 2000 Toyota Echo. I went out today to crank my car and nothing happened. I just replaced the battery about 4 days ago, because the car was getting sluggish about cranking. It's been doing fine until today. My inside light comes on, my dashboard lights all come on and the alarm that the key is in the ignition still works great, but I get nothing when I turn the ignition. No clicking, clucking or anything. My brother says it makes a slight whining noise. I've been researching, but it all has my head spinning. I'm praying I just got a bad battery, but I believe the culprit could be much deeper. Waiting to see what your expert opinions are. Thank you for your time.