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multiple electrical issues occurred simultaneously
2008 Avalon XLS w/208,000 miles. Been a great car. BUT.......
Suddenly I have various electrical issues that occurred simultaneously a week ago. Here they are:
1.Outside Temp reads "E"
2.Headlights dont work on auto, and only low beams work when switching lights to ON (versus Auto)
3.no "beep" when locking/unlocking car using remote (locks do activate, just no beep)
4.wipers dont work in any mode other than HIGH (fast) and windshield wash doesnt work
5.AC seems to be warm, even though it functioned great prior to this episode
6.Car seemed to overheat when idling for a while in park....like the radiator fan was not running when it should have been.
QUESTION TO READERS: what could be causing this????
After a week of this, I went to get in the car and noticed the "beep" was back when I unlocked the doors using remote fob. YES!! Sure enough all was back to normal, with all the above symptoms gone. Well that lasted about 10 minutes and suddenly all the above issues came back.
I searched the internet and thought maybe my "Power Supply Control Module" was to blame. Some folks referred to it as the "Body Control Module", "Power Source Module", etc.... I found a Toyota part number of 8967041010, which is also referred to as 89618A on diagrams showing the location of modules in the car. This module purportedly powers lots of functions in the car, like the ones I was having issues with. This part is ~$1000 from Toyota, but you can find working used ones on EBay for $50 or so.
I decided I would replace it with a used one and see if that did the trick. But, I cannot find this part in the car. A diagram showed it as being in/under the dash, near the right side of the center console. I removed the glove box, kick panel, radio, etc... and could not find this module up in the area where the diagram showed. There were a couple "modules" up behind the glove box, but neither was this part number.
QUESTIONS to experienced Avalon Mechanics: is this module the likely culprit? Any other things I should be looking at? and, Where the heck is this thing located? How do I get to it?
Thanks in advance for any replies.