Dual Climate Control Problem
Thread Starter
Intermediate
Joined: Nov 2010
Posts: 38
Likes: 12
From: Longwood Florida
Dual Climate Control Problem
I have a 1999 Coupe with the dual climate control.
The external temperature displayed is about 20 degrees lower than the actual outside temperature.
I have already replaced the ambient temperature sensor and I have checked the connector for corrosion and voltage (5.1 volts).
Is there anything else I can check or do I need a new control head?
Thanks for your help.
The external temperature displayed is about 20 degrees lower than the actual outside temperature.
I have already replaced the ambient temperature sensor and I have checked the connector for corrosion and voltage (5.1 volts).
Is there anything else I can check or do I need a new control head?
Thanks for your help.
Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
There is a company that sells a DIY repair of the climate control unit---
Typically on the 97-99's the solder connections are bad and re-soldering is needed-- and the instrction kit they sell tells EXACTLY which ones to do---It is a very touchy and delicate job---I did mine myself--and didn't even use new solder--all i did was to heat the connections with a soldering iron and they re-melted the connections and now everything works---OR you can have an electrical shop do the soldering for you---i can't remenber the name of the company---but i think i got it on E-B__Y--or just do a Google search---
Typically on the 97-99's the solder connections are bad and re-soldering is needed-- and the instrction kit they sell tells EXACTLY which ones to do---It is a very touchy and delicate job---I did mine myself--and didn't even use new solder--all i did was to heat the connections with a soldering iron and they re-melted the connections and now everything works---OR you can have an electrical shop do the soldering for you---i can't remenber the name of the company---but i think i got it on E-B__Y--or just do a Google search---
Le Mans Master
Joined: Mar 2004
Posts: 8,700
Likes: 298
From: Ft. Lauderdale Fl
I have a 1999 Coupe with the dual climate control.
The external temperature displayed is about 20 degrees lower than the actual outside temperature.
I have already replaced the ambient temperature sensor and I have checked the connector for corrosion and voltage (5.1 volts).
Is there anything else I can check or do I need a new control head?
Thanks for your help.
The external temperature displayed is about 20 degrees lower than the actual outside temperature.
I have already replaced the ambient temperature sensor and I have checked the connector for corrosion and voltage (5.1 volts).
Is there anything else I can check or do I need a new control head?
Thanks for your help.
Last edited by runner140*; Nov 16, 2010 at 02:06 PM. Reason: add
Intermediate
Joined: May 2003
Posts: 36
Likes: 0
From: Monticello IL
Are you sure you replaced the correct sensor? The one out under the hood near the right headlight is the one you want. I had this same issue and fixed it with changing out this sensor - cost was about $11.
Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
http://cgi.ebay.com/ebaymotors/97-04...item1e5fc9132b
Only $11.99-----also you can email hin with your specific problem and he will tell you IF the repair procedure will fix it or HOW to fix it------
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Melting Slicks
Joined: Sep 2006
Posts: 2,736
Likes: 7
From: Redding CA
That ebay listing is for the dimly lit display which can be easily fixed with a simple solder job...the temp reading an incorrect temp is a separate issue.
Sorry i can't be of more help. There should be a way you can check for the correct voltage/resistance down in the actual connector for the sensor.
Also, try disconnecting the sensor. then turn the car on and see if your display defaults to 69 degrees as it should.
Sorry i can't be of more help. There should be a way you can check for the correct voltage/resistance down in the actual connector for the sensor.
Also, try disconnecting the sensor. then turn the car on and see if your display defaults to 69 degrees as it should.
Thread Starter
Intermediate
Joined: Nov 2010
Posts: 38
Likes: 12
From: Longwood Florida
00Corvette Thanks for the tips.
I disconnected the sensor and the temperature stayed the same (53 degrees).
Pull the fuse for a little while to see if I could reset something.
After I put the fuse back in the temperature read 74 degrees to start with but slowly went back to 53.
This morning I was dirving it and the temperature reading is only a couple degrees off (65 degrees).
So I'm not sure what is going on at this point.
I disconnected the sensor and the temperature stayed the same (53 degrees).
Pull the fuse for a little while to see if I could reset something.
After I put the fuse back in the temperature read 74 degrees to start with but slowly went back to 53.
This morning I was dirving it and the temperature reading is only a couple degrees off (65 degrees).
So I'm not sure what is going on at this point.
Team Owner
Joined: Jul 2006
Posts: 22,202
Likes: 4,187
From: Kannapolis NC
You probably know that it doesn't update immediately when you make a change. You have to drive the car a few minutes over a certain speed to update. Just a thought. Maybe it's reading C instead of F
