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GM Ambient Air Sensor Harness - Silverado & Sierra (2014-2019)

$ 56.95
In-Stock Expedited options available at checkout.
Ships Within 1-Business Day


This is a harness to prevent the bothersome check engine light and DTC P0073 on GM trucks after installing aftermarket tow mirrors. This listing comes with a  jumper lead and an OEM GM ambient air sensor harness. This harness is compatible with all GM trucks 2015+.

Simply slide the pins into the passenger side connector in the correct location and turn the check engine light off!



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4.8 Based on 48 Reviews
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Cruz G.
United States United States
Works great

The service was great I got my parts fast and I was able to install them the same day and the engine light code is gone now.

United States United States
Sensor that no parts people know

Excellent part good instructions

Keith R.
United States United States
Got it

Good. The shipment arrived as expected Have not used the part yet so i am unable to comment on the product itself

Jim M.
United States United States
Ambient Temperature Sensor

I was surprised that changing the OEM mirrors would create a "check engine light" warning. Turns out the passenger side mirror has the outside temperature that you see on the dash. This is connected to the computer which then creates the error. Boost Auto Parts has the add on part to correct this condition. After the part was installed the check engine light turned off but the outside temperature read minus 40 degrees. After a quick email explaining the condition, the solution is to drive the vehicle. It take about 30 minutes to recalibrated. Thanks

Kristy B.
United States United States
GM Ambient Air Sensor Harness

Easy to install....Worked great!!