North American Turbocoupe Organization



Automatic Climate control
blackbird87 Offline
Member
#1
The in-car temp. sensor is dead on my car. The part is not to be found. ACT code is 12. I checked the sensor and it has 0 resistance. Has anyone used a sensor from another vehicle? If I knew the operating voltage of the sensor it would help. If I have to I will find the proper thermistor and repair mine. All imput is welcome. Thanks.
1988 Turbo Coupe 5spd stock. 1987 Turbocoupe 5spd,Totalled.
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TurboCoupe50 Offline
Posting Freak
#2
The sensor should read 35K ohm at 0*F and drop to around 4300 ohms at 120*F... At 80*F it should read 9500 ohms...

BTW there is a chart in the shop manual with readings...
1988 Turbo Coupe331 AOD

1972 Comet GT

1969 Fairlane Cobra 428CJ 4-Speed
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blackbird87 Offline
Member
#3
Thanks. I have the the shop manual and knew the range. Just not the operating voltage. I will check it with a meter when I get back to the car.The thermisters I am finding in that range are milivolt rated. Thanks again.
1988 Turbo Coupe 5spd stock. 1987 Turbocoupe 5spd,Totalled.
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TurboCoupe50 Offline
Posting Freak
#4
I doubt voltage or amperage is much of a concern, no doubt there is almost no current draw... Whatever I found that was close in resistance would get the nod...
1988 Turbo Coupe331 AOD

1972 Comet GT

1969 Fairlane Cobra 428CJ 4-Speed
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blackbird87 Offline
Member
#5
Rebuilt the thermister for in car temp. The voltage was 5v. Cleaned ambient sensor. The auto function works now. Within one degree of my digital temp gauge. Total cost $5.20. Thanks for all the help.
1988 Turbo Coupe 5spd stock. 1987 Turbocoupe 5spd,Totalled.
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