Not getting 12v at AC compressor
- Thread starter quietfly
- Start date
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retorq
Full Access Member
All the wiring in between ...
SunlitComet
OBS Jedi-Do Good
Weather or not you have a charge in the system and weather or not the PCM sees it that way. What year so I can pull up diagrams please?
Sweet, shes a 95 5.7tbi....
---------- Post added at 02:19 PM ---------- Previous post was at 02:15 PM ----------
it literally just stopped working after blowing cold air.
sunlit comet do you have AIM or Msg of any sort?
---------- Post added at 02:19 PM ---------- Previous post was at 02:15 PM ----------
it literally just stopped working after blowing cold air.
sunlit comet do you have AIM or Msg of any sort?
retorq
Full Access Member
It's probably low ... my 95 TBI needs a lil recharge every summer before it will kick on
SunlitComet
OBS Jedi-Do Good
Lets start at top of compressor. should be a switch with light green wire and a dark green/white. disconnect that connector and probe the light green for voltage with the negative lead of Dmm to battery ground. with head unit a/c controls on, no volts mean head unit is not requesting a/c engagement from computer. Next try applying batt volts to dark green/white wire. Does system engage(only do this for a few seconds)? If you have volts on light green and volts on the other initiates the system. You should be able to jumper wire the connector and system should operate. if it does not operate when plugged back in to switch you have a defective switch or a very low charge.
---------- Post added at 06:49 PM ---------- Previous post was at 06:46 PM ----------
missed the second part of message no instant message thingy for me. Lets start with what I just posted first despite it just happened suddenly.
---------- Post added at 06:50 PM ---------- Previous post was at 06:49 PM ----------
has it started again at all since it quite?
---------- Post added at 07:13 PM ---------- Previous post was at 06:50 PM ----------
has it started again at all since it quite?
---------- Post added at 06:49 PM ---------- Previous post was at 06:46 PM ----------
missed the second part of message no instant message thingy for me. Lets start with what I just posted first despite it just happened suddenly.
---------- Post added at 06:50 PM ---------- Previous post was at 06:49 PM ----------
has it started again at all since it quite?
---------- Post added at 07:13 PM ---------- Previous post was at 06:50 PM ----------
has it started again at all since it quite?
thanks for the help, but i had to give up and take it to the AC guy, they just installed 90% of the system and hopefully whatever is broken is under warranty. last i got to was metering the clutch engage wiring, and not seeing 12v passing there where previously it was ( i used this to engage the AC fan override so the second fan would turn on when ever the compressor ran)
