2016 Buick regal hvac system not working
2016 Buick regal hvac system not working
A few days ago my hvac controls went completely black and haven't came back on. I'm looking for advice on where to start so I can fix problem
Re: 2016 Buick regal hvac system not working
the first thing I would do is look for a blown fuse. The HVAC module is powered up by fuse #17 in the instrument panel fuse block in the lower left side of the dash. Should be a 10 amp fuse.
here is a picture of where the fuse #17 should be. By the book anyways. Sometimes the book is not correct.
If the fuse is good and has power with the ignition key in the run position, then you have to remove the hvac controls and check the powers and grounds. If all the powers and grounds are good you will probably have to replace the hvac control module.
Have the vehicle scanned. They should be able to scan the hvac module. I'm thinking that there won't be any communication with that module because if nothing lights up or turns on there probably won't be any computer communication. Scanning for all codes may turn up a clue before the module went completely out. It's an easy check.
here is a picture of where the fuse #17 should be. By the book anyways. Sometimes the book is not correct.
If the fuse is good and has power with the ignition key in the run position, then you have to remove the hvac controls and check the powers and grounds. If all the powers and grounds are good you will probably have to replace the hvac control module.
Have the vehicle scanned. They should be able to scan the hvac module. I'm thinking that there won't be any communication with that module because if nothing lights up or turns on there probably won't be any computer communication. Scanning for all codes may turn up a clue before the module went completely out. It's an easy check.
Re: 2016 Buick regal hvac system not working
If there are no blown fuses, try tapping on the front face of the controls. If it flickers, then the control head needs to be replaced.Iketomtom wrote: ↑Fri May 31, 2019 7:12 pmA few days ago my hvac controls went completely black and haven't came back on. I'm looking for advice on where to start so I can fix problem
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