Navigator climate control not working, blower does not turn off

This sounds like you have a blower fan relay stuck on or the speed control module had gone bad. Here is a guide to help you check the relay and the location of the relay and speed control module as well. Also, I have included the blower fan wiring diagrams so you can see how the system works.

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

and

https://www.2carpros.com/articles/blower-fan-motor-works-on-high-speed-only

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

Cheers

Anything is possible if it got wet. That dash is full of electronic modules and relays and water getting into any of them can lead to expensive failures. If all the fuses are good, then it may be too late. I would try disconnecting the battery for 15 minutes and see if that helps.

Hello,

Yes the climate controller sounds like it is bad but to be sure here is a guide and some diagrams (Below) to help you confirm the problem and get it fixed.

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

Please let us know what happens so it will help others.

Cheers, Ken

Hello,

Did you test your fuses with a test light or just a visual test? I uploaded the wire diagram for the climate control for you. Test the fuses listed on it with a light. The system is controlled by a module so we'll need to verify that it's getting power. It does seem like a fuse issue if your getting nothing at all from the system, but it could be the module itself. What happened when it failed? Anything out of the ordinary? Review the diagrams and test it with a light and let me know what you find.

Tom

Terry,

Yes, it's hard to tell from the pic where it runs to and from but correct it's a vacuum line. Yes, you can use a multi meter on the 12 volt setting. A loss of vacuum can cause the A/C system to not work properly if at all. A vacuum leak would trigger a check engine light usually. Do you have a engine light on?

If you look on the hood there should be a sticker that will be a diagram of the vacuum lines. See if you can find it and look to see that they are all good. Look to see the one that burnt and which components it coming from and going too. Having a line burn is interesting, does anything else look burnt and can you tell what by this line caused it to burn. What was it touching that melted it, Can you tell?

Tom

I added a link for using a Volt meter for this type of test"

https://www.2carpros.com/articles/how-to-use-a-voltmeter

The wiring could have fallen down by the exhaust mamafold at one time. So does the system work correctly now?

Good morning Terry,

I have attached the steps to take to check out your Navi screen operation. See if this helps and let me know if it has what you need. There are several different diagnostic tables depending on the issues but we wont know until the screen turns on if that's the only thing.
Tom

4DRTOM is one of our best! Use 2CarPros anytime, we are here to help. Please tell a friend.

You're welcome my friend it is a pleasure helping out. Cars these days and the expense of shops can really put a monkey wrench into a families budget. Keeping folks on the road without going broke is what what like to do. If anything arises be sure to let us know.
Tom