A/C wiring confusion
A/C wiring confusion I am trying to get my 411 PCM with 2002 LS6 OS to run all the a/c functions in my LS6 Miata. I am using the three wire pressure sensor and using the wiring diagram from the book GM Gen 3 Powertrain control systems. Everything is making sense except the black wire off the pressure sensor. My diagram calls for it in Red 57 (low reference). Red 57 is already taken up by a purple wire for IAT sensor ground. This jibes with the pinout diagram I am using. Blue 57 is taken up by orange (battery positive) so that's not it.
Anyone know where I pick up my low reference for the pressure sensor? Thanks.
Anyone know where I pick up my low reference for the pressure sensor? Thanks.
TECH Addict
Joined: Aug 2005
Posts: 2,305
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From: Monroe,NY
http://lt1swap.com/2001_PCM_CONN_PINOUT.htm Check this out
http://lt1swap.com/pictures/18_ac_comp_controls.gif It looks like here it is spliced in with the iat sensor Red 57
http://lt1swap.com/pictures/18_ac_comp_controls.gif It looks like here it is spliced in with the iat sensor Red 57
Last edited by gagliano7; Feb 20, 2015 at 10:11 AM.
