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A/c control access

Old Jun 21, 2015 | 12:49 PM
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Default A/c control access

My A/C clutch won't engage. There is no voltage going to the clutch. I have checked the clutch by activating it with direct voltage and it works ok. Now I need to see if it is in the control unit in the Console. Can anyone tell me if you can access the A/C, Heater, control unit for testing by just taking the gauge cluster out?
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Old Jun 21, 2015 | 02:49 PM
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You can check for voltage on the light green wire in the engine compartment. You must have pressure in the system for the clutch to engage.




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Old Jun 21, 2015 | 07:20 PM
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Originally Posted by bruiser
You can check for voltage on the light green wire in the engine compartment. You must have pressure in the system for the clutch to engage.






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Old Jun 21, 2015 | 07:24 PM
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Thanks DUB and Bruiser. I will have the refrigerant pressure tested before I go pulling things apart. Your tip is very much appreciated. I have the Service Manual and Assembly Manual on their way, but don't like to wait to get things working. This Site is outstanding. :-)
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Old Jul 22, 2015 | 01:48 PM
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I took the advice you guys gave me and had the system tested. It was an R12 system and had to be converted to R134, so I did that. Then it was charged and it now works. However, it isn't as cold as I would like and that may be the condenser, but I am going to leave it for a while and see if it improves on its own.
Cheers and thanks again.
Don
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