In the third week of June I took my car in for routine dealer maintenance. They changed the rear sway bar links and also fixed my air conditioning. After about 4-5 days, my car would not start. I got a jump start and it ran ok that day. Then the very next day and the day after that, it was the same issue. I then took it to the dealer. They said they performed a series of tests and found no electrical issues, but the battery was bad. I then got a new battery ~ July 6th 2010. The car then ran fine - I drive lightly - maybe an average of 30 - 40 miles in a week. Then, 3 weeks ago, it again did not start. I got it jump started and it ran well until Sep 28th when again it did not start. I took it to the dealer and they now say that the problem is with a Power Control Unit which is keeping the blower always on - it never shuts down even after the ignition is turned off. I was told earlier by them (before this diagnosis) that it was common for the blower to be on even after I shut down the car. They have quoted the labor and parts for around $900
I am wondering if there is anything else which might be going on here? I find it suspicious that the problems started after the maintenance performed in June - would the rear sway bar links' change have affected the battery? Could it be something else going on? I am also intrigued that when the battery if drained, while manually using the key, I can enter the car normally sometimes while at other times the car alarm would sound. Could it be a problem with the alarm or the key less entry?