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10-05-2015, 02:36 AM
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#9 |
 Drives: 2013 Yaris 4d Join Date: Jul 2015
Location: Florida
Posts: 7
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ECM frozen
The U0100 error codes from the combination meter says the ECM is not communicating. Thought about an immobilizer issue but when I interrogate it, I get immobilizer 'SET' condition then when I turn the key off and back on, it goes to 'UNSET' and still can't talk to ECM. This is the third ECM. The pins of the ECM don't agree with any docs I have. This car had a shorted CAN bus before I changed several modules and no one knows why. I am suspicious of a wiring or connector pin problem.
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