No A/C

2003 KIA SEDONA
132,330 MILES • 3.5L • 6 CYL • 2WD • AUTOMATIC
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905700003787
  • MEMBER
  • 2 POSTS
I have checked all relays and compressor and hi and low
cut outs. I have power into A/C control head at pin 1r.
I just need to know what pin is output at the control head? Also,
the lights come on when A/C button is pushed as does the recirculate.
Jun 26, 2018 at 11:41 AM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
Good morning.

I attached wiring diagrams for you to view of the control head.

Did you verify voltages to the pressure switches?

Roy

https://www.2carpros.com/articles/car-air-conditioner-not-working-or-is-weak
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Jun 26, 2018 at 9:52 PM
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905700003787
  • MEMBER
  • 2 POSTS
Howdy the answer is great, thank you. However, the schematic is blurry and we use
Prodemand as our diagnostics believe if I can find out what pin connector is the output
I can tell if it is the control head or PCM. Note: even the scanner does not show a/c on when
button pushed but light comes on on dash.
Jun 27, 2018 at 4:33 AM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
Pin 6 on the control head. I highlighted it in yellow.

That is for the control side of the AC clutch relay.

Roy
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Jun 27, 2018 at 5:37 AM
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