A/C not blowing cold air, compressor is not turning on

KAITLYNDVOORHEES

MEMBER
2003 ACURA MDX
V6
4WD
AUTOMATIC
200,000 MILES

My A/C won't cool. The compressor isn't kicking on. The compressor is still good and full on Freon. I have checked all the relays and they are all good. I can't figure out what's wrong. The blower works great. The A/C just won't cool.

4 Replies

RASMATAZ

MECHANIC
75,992 POSTS

Could be the pressure switch-Try to power the compressor direct and see what happens

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Sunday, August 3rd, 2014 AT 1:43 PM

KAITLYNDVOORHEES

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3 POSTS

How do I power the compressor directly?

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Sunday, August 3rd, 2014 AT 5:31 PM

KAITLYNDVOORHEES

MEMBER
3 POSTS

My husband hooked the compressor straight to the battery and nothing came on.

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Sunday, August 3rd, 2014 AT 5:45 PM

KASEKENNY

MECHANIC
18,907 POSTS

We need to confirm that the compressor will not come on. We do this by taking a jumper wire and connect it the battery and then connecting the other end to the power wire of the compressor. I attached the wiring diagram for you to see what this is. There is only one wire going to this clutch so it should be straight forward.

You could also check for voltage at the clutch to see if it has it and if so this would be the same result.

If the clutch does not come on then we need to replace the compressor as this is the cause.

Let me know what you find and we will determine next steps but I suspect the compressor is the issue.

https://www.2carpros.com/articles/car-air-conditioner-not-working-or-is-weak

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