Ac blowing hot air

2004 DODGE NEON
111 MILES • 2.0L
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JONMANIAUL
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  • 1 POST
It has Freon, fuses and relay good. try to jump A/C relay and A/C clutch engage, but when i check the low pressure switch, no power .
Sep 18, 2017 at 8:24 AM
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JDL
  • ✓ASE Certified Mechanic
  • 16,098 POSTS
  • ASE Certified Mechanic
Any applicable trouble codes? The high pressure sensor--low pressure sensor--and A/C/heater control are wired in series, part of the ground. See the PCM, A/C sensor. I believe the PCM sends voltage to the high pressure sensor first and so on. You may need to check voltage at high pressure sensor circuit, first. I am not sure how much voltage is there, use a digital multi-meter.

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Sep 18, 2017 at 11:30 AM
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MHPAUTOS
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  • 31,937 POSTS
  • ASE Certified Mechanic
How do you know that the refrigerant level is correct? can you get high and low side pressure readings posted?
Sep 19, 2017 at 3:53 AM
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