2003-up Silverado AC request type
Not sure if this is possible with the green/blue PCM or not but it would be a nice feature to have.
On several swaps I have run into the problem of the AC request signal being provided by the serial link from the HVAC controller. In order to let the PCM retain control over the AC clutch it would be nice to have the option to switch from serial input to a 12v signal like the 0411 PCMs had. Similar to the option for the performance switch to be operated by serial or by switches.