How do I calibrate my ambient temperature sensor?
There is no calibration procedure. The sensor circuit, like the temp gauge, is buffered. A functioning sensor should take between 10 minutes and an hour to stabilize, and as long as it’s not disconnected, should remain stable.
How do you reset the ambient temperature sensor on a Ford?
The multiple button reset for the Ambient Air Temperature (AAT) sensor is as follows:
- On the HVAC panel controls, press the A/C and Recirc buttons simultaneously, then, release both.
- Within 2 seconds press the A/C button again.
Can I bypass ambient temperature sensor?
As far as the ambient sensor, that is not the MFA ambient temp sensor. This is for the A/C to make sure the compressor does not turn on on if the Sun Load is above a certain threshold to protect the compressor. This one, you can bypass if you wish. You just need to jump a wire across the sensor.
How much does it cost to fix an ambient air temperature sensor?
The average cost for ambient air temperature sensor replacement is between $85 and $103. Labor costs are estimated between $51 and $65 while parts are priced between $34 and $38. This range does not include taxes and fees, and does not factor in your specific vehicle or unique location.
What to do if ambient temp reading is incorrect?
If an owner has a concern with the function or accuracy of the ambient air temperature display, perform the instant update to determine if the display will read an accurate temperature. To perform an instant update of the Ambient Temperature Sensor, simultaneously press and hold the Recirculation button and A/C button on the HVAC control head.
Are there any ambient air and Def problems?
/ Freightliner related help / Ambient air and DEF problems and solution I’ve been having ambient air temp sensor issues as of late, and along with it, DEF codes as well. When checking in Insite, it would read up in the 160* range and would work up to 200*.
How to update the ambient air temperature display?
To update the ambient air temperature display on the HVAC control module, perform the following procedure: Turn ON the ignition. Simultaneously press the A/C and Recirc switches for 5 seconds. Perfect, I will give that a try. This is the wife’s Equinox…can’t even remember what the dash layout is.
Where is the correct ambient air temperature sensor?
Checked again with a different Freightliner in Grand Junction, CO, and they had to do a little bit of some digging to find the correct one. It was named Air temperature sensor, instead of ambient air temperature, lol… Plugged it in and checked it on Insite and all seems to be well, and reading the correct temp.