Jeff,
Does your ac ON input go to the GM computer so it idles up and such? How does it work for you? I got my A/C kickin, but man I'm wondering about the a/c input. I'm testing that today. I also have three wires to hook up today and I'll go test the cruise control.
I cut the three wires on the steering column for the factory cruise switch. See, Toyota uses a "ground" type system, and GM uses an "12v" on system. Meaning when the system sees 12v it activates, and for toyota when it sees ground, it activates through the cruise control ecu. I hooked up the upper brake switch and man alive how it changes things with converter lock up etc. I've also changed my shift points and lock up times etc. I firmed up the shifts etc, and I REALLLLLY like it.
Yours is looking real good!
*EDIT*
This is taken directly from the HVAC description section of the manuals. I have access to ALLDATA Pro, so I have every wiring diagram available.
"The manual HVAC system is a dual temperature zone system. There are 2 separate air temperature levers. Moving the air temperature levers to the upward position diverts most of the airflow through the heater core, which increases the outlet air temperature. Moving the air temperature levers to the most downward position diverts most of the airflow around the heater core, which decreases the outlet air temperature. The air temperature offset can be as much as 16.7°C (30°F) .
Pressing the A/C button enables the HVAC control module to request A/C compressor engagement and turn ON the A/C button LED. The HVAC control module sends a class 2 message to the powertrain control module (PCM) for A/C compressor engagement. The PCM will provide a ground for the A/C compressor relay enabling it to close its internal contacts to send battery voltage to the A/C compressor clutch coil. The A/C compressor diode will prevent a voltage spike, resulting from the collapse of the magnetic field of the coil, from entering the vehicle electrical system when the compressor is disengaged. Defrost and Defog mode selections will request A/C operation but not turn ON the A/C LED.
The following conditions must be met in order for the A/C compressor clutch to turn ON:
The ambient air temperature is above 4°C (40°F) .
The A/C low pressure switch signal circuit is grounded.
The A/C refrigerant pressure sensor parameter is less than 2957 kPa (429 psi) .
The PCM receives an A/C request from the HVAC control module.
The engine coolant temperature (ECT) is less than 121°C (250°F) .
The engine RPM is more than 550 RPM .
The throttle position is less than 100 percent ."
Wayne