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Can anyone tell me why my 99 grand prix external temp is still displaying the wrong temp after i replaced the external ambient sensor for dual climate control?
Wiki User
∙ 12y ago
Does it always give false readings or just at times near start up? thought this may help
The outside air temperature sensor is located in the frontgrill area under the front bumper of the vehicle. The HAVC control head usesthis sensor to receive information on ambient air temperature. With this information,the HVAC control head will give the driver the outside air temperature on the digital display. If the outside temperature increases, the displayed temperaturewill not change until:
- The vehicle's speed is above 32 km/h (20 mph) for approximatelyone and a half minutes.
- The vehicles speed is above 72 km/h (45 mph) for approximatelyone minute.
These delays help prevent false readings. If the displayed temperaturegoes down, the outside temperature display is updated immediately. If thevehicle has been turned off for more than three hours, the current outsidetemperature will be shown when the vehicle is started. If it has been turnedoff for less than three hours, the temperature will be recalled from the previousvehicle operation.
Wiki User
∙ 12y ago
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