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George H.
George H., ASE Certified Technician
Category: Saturn
Satisfied Customers: 807
Experience:  ASE Master Tech 15+ Years
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Saturn ION: I have a 06 saturn ion and no crank. No turn i

Customer Question

I have a 06 saturn ion and no crank. No turn i have code u0100 I changed
ECM, BCM and Ign. Switch and is no power on purple wire to the starter and i remove the starter relay and jump from 87 to 35 and is no power to the starter with ign. Key on. I check sraeter and is good
Gauges and power locks, power windowsis good, but if i use engine starter spray and jump a wire from batery to starter with Ign. Key on. The car run for one secund and died, so please help me to find the problem with your answer and thank you very much
Submitted: 1 year ago.
Category: Saturn
Expert:  Gary replied 1 year ago.
Hi there,
Whichever module had the U0100 is working normally.
EG: If the code was in the BCM, it's saying "I can't talk to ECM".
So whichever module is not communicating either has a CAN-BUS issue or a power or ground issue.
It's not always a module.
Have you got a vehicle schematic?
Gary

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