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Wiring Question (A/C Amplifier Assembly)

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Hello all,

I am trying very hard to fix my A/C and I have found several forums linked to this exact problem.
Can anyone out there read wiring diagrams?
I have a 2012 Scion IQ (North American) and I am trying to determine the 3 wires (live, ground, flow sensor signal) that are coming from the Flow Sensor atop the A/C compressor going to the wiring loom that plugs into the A/C ECU.

On Page 2 I see SOL+ (Red PIN 13), FLOQ (Sky Blue PIN 4) and SG-1 (Violet PIN 23). Which I believe are the 5v live, the flow sensor signal and the ground in that order but I am unsure.

Hope someone can help!

EWD IQ.pdf

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Here is a complete guide to fixing my A/C. It is a bit overkill. 
(175mb compressed)

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