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Hello, I have looked at the the wiring diagram.
Are you able to perform a few continuity test?
Ok. I need you to check continuity between a couple of connectors.
Can you get to the connector at the a/c control module?
Check continuity between the black/yellow wire that is supposed to be in pin #11 to the connector of the blower motor resistor that is black/yellow pin #2.
Then check between the black/yellow wire #2 at the resistor to the black/yellow wire #2 at the blower motor.
Ok. So when you turn on the system do you have ground at the ecm pin #11?