kaluce Posted February 3, 2020 Share Posted February 3, 2020 Does anyone have a pinout diagram for the 2005 - 2009 USDM dual zone HVAC system without navi? I'm talking about the two connectors not relating to audio. I think they're i17 and i88? I have a dumb 'because I can' project. I have my old head unit from my OBXT, and I was thinking of tacking it to an arduino or RPI to use the head unit as a way of controlling some blower fans, maybe audio output, etc, for my sim rig. It's dumb as hell, but I got parts around that are taking up space and I have no intention of using them again in the car, so why not. I guess it would also work to reverse engineer the HVAC control system, I guess. What I do have already is the audio connector courtesy of David Carter (ae64.com): Audio connector setup: 1: Illumination+ - (+12v ‘switched’) 2: RF speaker + (if using a tweeter, connect in line) 3: LF Speaker + (if using a tweeter, connect in line) 4: RR Speaker + 5: LR Speaker + 6: +12vdc memory (+12v ‘constant’) 7: Illum- (Pot to gnd) 8: RF Speaker – 9: LF Speaker – 10: +12vdc accessory (switched) 11: GND 12: RR Speaker – 13: LR Speaker – 14: power antenna: (No Connect) HVAC setup: i88 connector: ? Link to comment Share on other sites More sharing options...
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