Air conditioner compressor not turning on

PACHYAUTO63

MEMBER
2004 TOYOTA SIENNA
3.3L
V6
2WD
AUTOMATIC
125,000 MILES

I have replaced the compressor but it still will not kick on to pull in the Freon to make it blow cold. Fuses look good. What could be causing the new compressor to not kick on like the old one did?

Wednesday, April 18th, 2018 AT 3:00 PM

3 Replies

MHPAUTOS

MECHANIC
31,938 POSTS

It sounds like the compressor is defective but to be sure lets test for power at the compressor. This guide will show you how wit the AC wiring diagrams below so you can see how the system works. Also check all fuses

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

Check out the diagrams (Below). Please let us know what happens.

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Thursday, April 19th, 2018 AT 5:41 AM

PACHYAUTO63

MEMBER
40 POSTS
2006 TOYOTA SIENNA
3.3L
V6
2WD
AUTOMATIC
125,000 MILES

I have replaced the compressor, the resistor switch. All fuses and relays good. Compressor holding 70-80 pressure but yet the compressor still will not kick on. Cleaned out air flow and sensor replaced but still will not kick on. I am at out of ideas. Please help.

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Tuesday, April 24th, 2018 AT 5:13 PM (Merged)

ASEMASTER6371

MECHANIC
52,797 POSTS

Good evening

Did you check the fuses to be sure there is no blown fuse?

Did you check for power at the compressor? Check the 10 amp heater fuse in the fuse block.

Roy

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