A/C compressor stopped working?

RENAV

MEMBER
2004 TOYOTA SIENNA
V6
2WD
AUTOMATIC
360,000 MILES

Mechanic friend checked pressure, which it still has (FYI, it tastes and smells gross!). Not sure if the relay is not working or if there is an issue with the compressor. We are both researching the internet and I came to my go to spot for car questions.

Sunday, June 4th, 2023 AT 10:53 PM

1 Reply

KEN L

MASTER CERTIFIED MECHANIC
51,628 POSTS

Good to hear. The first thing we need to do is see if the compressor clutch is getting power with the system on.

This guide can help you test for power:

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Here are the AC system wiring diagrams so you can see which fuses to check for power as well. Also, it will show which wire to check for the compressor and how the system works.

This guide may help as well:

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

Check out the images (below). Let us know what happens and please upload pictures or videos of the problem so we can see what's going on.

Images (Click to make bigger)