A/C controls do not work

Tiny
BELTFED
  • MEMBER
  • 2005 TOYOTA SEQUOIA
  • 4.8L
  • V8
  • 2WD
  • AUTOMATIC
  • 66,000 MILES
No power to A/C panel.
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Tuesday, July 11th, 2017 AT 7:13 PM

7 Replies

Tiny
KEN
  • ADMIN
Hello,

Is sounds like a fuse or the MG circuit control relay. Here are some guides and diagrams (below) to help you do some testing and get the problem fixed.

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

and

https://www.2carpros.com/articles/how-to-check-a-car-fuse

and

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Please run some tests and get back to us we are interested to see what it is.

Cheers, Ken
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Wednesday, July 12th, 2017 AT 11:15 AM
Tiny
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  • MEMBER
Checked fuses and MG relay. All good so far
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Friday, July 14th, 2017 AT 7:04 AM
Tiny
KEN
  • ADMIN
Does the system have power?
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Friday, July 14th, 2017 AT 9:36 AM
Tiny
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Checked connection at compressor. No power
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Friday, July 14th, 2017 AT 11:42 AM
Tiny
KEN
  • ADMIN
If the fuses are good and the relay is good, then you will need to check the wiring.

https://www.2carpros.com/articles/how-to-check-wiring

If this checks out then the controller is bad and needs to be replaced.

Please run some tests and get back to us we are interested to see what it is.

Cheers, Ken
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Monday, July 17th, 2017 AT 9:30 AM
Tiny
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  • MEMBER
Is this referred to as the a/c integrated control panel? The a/c went out at the same time as the coolant temp gauge. After researching, it appears the coolant temp info is also sent through the same a/c integrated control panel. Does this make sense?
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Monday, July 17th, 2017 AT 11:51 AM
Tiny
KEN
  • ADMIN
Yes it sure does, it sounds like the control panel is bad.

Please let us know what happens.

Cheers, Ken
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Tuesday, July 18th, 2017 AT 9:32 AM

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