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2009 Cadillac CTS won’t turn over.

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Old Feb 28, 2025 | 04:07 PM
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Default 2009 Cadillac won’t turn over

Sorry for the delay response been really busy. So I just checked voltage on those fuses and each fuse read the same one both sides 11.6VDC except the ecm fuse and the ecm/tcm ign fuse read 0VDC on both sides. Took readings with key out of ignition switch.
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Old Mar 1, 2025 | 12:20 AM
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Originally Posted by Jdd
Sorry for the delay response been really busy. So I just checked voltage on those fuses and each fuse read the same one both sides 11.6VDC except the ecm fuse and the ecm/tcm ign fuse read 0VDC on both sides. Took readings with key out of ignition switch.
How about with the ignition turned on?
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Old Apr 7, 2025 | 04:14 PM
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Default 2009 Cadillac no start

with key on all fuses read 12v on both sides. I noticed that the idle control motor is making noise, sounds like it’* finding the home position. This happens when I hit any button on remote or open the door using the door handle. Does this sound like something anyone has experienced? I’m still trying to figure out why I have a no crank no start situation.
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Old Apr 7, 2025 | 11:44 PM
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Does it ever stop making noise?

Are there any codes stored?
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Old Apr 8, 2025 | 11:21 AM
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It stops making noise after a few times but will do it again as soon as I open a door or try to turn anything electrical on. No codes either
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Old Apr 8, 2025 | 01:32 PM
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Where are we at on the no start? Have we verified the PCM is awake and seeing a start request?
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Old Apr 8, 2025 | 07:02 PM
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Default PCM

I’m not sure how to do that. If you could help me out I would greatly appreciate it.
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Old Apr 8, 2025 | 11:06 PM
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If you don't have a scan tool you can trace it with a DVOM.
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