Kiko_Jones
Newbie
Need help with the AC in my LS Swap. I installed a '99 Corvette LS1 into a 1996 GMC C1500 4.3. The PCM is from the 99 Vette. I'm running dual eFans.
I'm just not getting GND at A/C Clutch Relay Control (C2-43) which would energize the relay and engage the clutch.
PCM inputs:
A 51k resistor between 5v A/C Pressure Signal Ref (C1-45) and the A/C Press Sens Signal (C2-14) to bypass the 3 pin A/C Refrigerant Pressure sensor. I'm reading 2.5vdc.
From the OBS A/C controller, I'm applying 12vdc to A/C Request (C2-17).
The BIN says the type of AC is "3=Analog Cycling"
What am I missing??
I'm just not getting GND at A/C Clutch Relay Control (C2-43) which would energize the relay and engage the clutch.
PCM inputs:
A 51k resistor between 5v A/C Pressure Signal Ref (C1-45) and the A/C Press Sens Signal (C2-14) to bypass the 3 pin A/C Refrigerant Pressure sensor. I'm reading 2.5vdc.
From the OBS A/C controller, I'm applying 12vdc to A/C Request (C2-17).
The BIN says the type of AC is "3=Analog Cycling"
What am I missing??
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