Question about 2009 Saturn Aura

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How do i fix error code u0100 on my 2009 saturn aura xe?

I had been getting several different error codes for months but not consistent ones. Then one day it died - no crank/no start. I replaced starter, battery, battery cables, battery connections, checked fuses, checked wires, replaced ignition switch and when boyfriend tried to hotwire car it cranked but did not start. Now anti-theft deterrent light is on and my key fob hasnt worked for years and when boyfriend took out the ignition lock he accidentally broke a few copper wires that were behind the ignition lock housing. My dash also says powersteering and service esc, but scanner says u0100. why wont it start? how do I fix it?

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That sounds an awful lot like the ECM is having trouble. Since the model year is nearly 7 years old, it is possible that the ECM is toast or that a wire or two has a corroded connection. Have a look at this information: http://engine-codes.com/u0100_saturn.html

Hope this helps.

Posted on Jun 29, 2015

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Posted on Jan 02, 2017

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