You did it. The way to test supply voltage is to unhook the connector at the component and check for voltage on that pin to a known good ground.
So when you are not getting no voltage with this key on then that control module is not sending it and has failed.
This applies to any supply voltage including a 5 volt supply.
Sounds like the driver in the module has failed and needs replaced. The ASD and other relays would not effect this as the PCM controls these relays through the ground side but would not effect the supply voltage.
Take a look at the info below but sounds like you don't need it. In case others in the future this includes the wiring diagram on the wire you are referring to.
Please let us know what questions you have. Thanks
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Thursday, September 23rd, 2021 AT 6:22 PM