bawhite09 Posted December 26, 2014 Share Posted December 26, 2014 I am having a problem with my 2007 IS 250. My car will not start. It is not the battery. I have had it tested, I have disconnected it, I have tried jumping it. Headlights come on, brake lights come on when pedal depressed, and interior lights come on. It is not the key FOB battery either. The car is still able to be unlocked, locked, alarm activated and trunk opened with it with no issues. When I depress the brake pedal the green indicator light on the start button does not come on, however "ENGINE START/STOP" on the button is illuminated. Dashboard light do not come on. Accessory mode does not come on. Engine doesn't turn over, no clicking noises, nothing at all. The door open indicator light on the dash constantly stays on (NOW, not before the problem). Any clue?? I am really trying to avoid the dealship trip!! Quote Link to comment Share on other sites More sharing options...
bawhite09 Posted January 16, 2015 Author Share Posted January 16, 2015 To those who have viewed this or to anyone else who experiences this problem, here's the latest. After checking EVERYTHING I could think of....I had it towed into a dealer to try reprogramming the remote to the car. After running diagnostics, turns out the power source control ECU took a dump. Part number for reference.... 89670-53010 Quote Link to comment Share on other sites More sharing options...
LEX-SV Posted January 17, 2015 Share Posted January 17, 2015 Beth - Welcome to LOC. Thanks for reporting back on fix, this may be helpful to other owners here. How many miles on your IS? Was the charge for fix expensive? Quote Link to comment Share on other sites More sharing options...
VBdenny Posted January 17, 2015 Share Posted January 17, 2015 ECU taking a dump? Was there any explanation as to how or why? Dealership answers like that translate to f&-:5()&@@))("?@. Pay $$$ to me Quote Link to comment Share on other sites More sharing options...
DARK GRAY RX350 Posted April 17, 2015 Share Posted April 17, 2015 Thanks for uploading your final fix Quote Link to comment Share on other sites More sharing options...
LEX-SV Posted April 20, 2015 Share Posted April 20, 2015 $820 list price for the part alone... Quote Link to comment Share on other sites More sharing options...
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