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Old 01-26-2018, 09:16 PM
vannatta20 vannatta20 is offline
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A 5th gen camaro e38 os will not support pwm. But a truck e38 os will. Also the e92 silverado controller will only support pwm at 100hertz. No discrete on the new stuff factory os.. The gmpp e92 controller will support discrete only. Its all super confusing and testing is the only way to know for sure. Lot of misinformation out there. I use an oscilloscope at work to see the signals. To get ac control the computer needs to get a serial on request from the bcm. We have a module the sends that signal along with tap shift commands for gen iv and gen v. This control the fan based on ac pressure as well. Works perfectly.

Last edited by vannatta20; 01-26-2018 at 09:21 PM.
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