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Hello everyone. My trusty 2012 Volt met its demise recently from a small accident that damaged critical (expensive) components. 180k miles with the original front brakes still. I am getting a 2017 Volt next week. On my 2012, I tapped into the temperature sensor wires going to the computer under the passenger seat and connected to a switch and resistor pack. When switched off, the car read the actual outside temperature. When on, it read a constant 28 degrees. I saved a lot of gas having this modification and want to do it on my 2017. I haven't found what wire colors, or pinout numbers go to the OAT sensor on the Gen 2. I assume the computer is still under the passenger seat, but maybe it's located somewhere else? On the Gen 1 models, it was pin 26 and 40. I would really love to know the pin numbers and wire colors. Does anyone have this info they could share with me? Thank you.
 

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Does anyone have a Gen2 service manual they can look this up for me?
I don't, but the trick of wrapping a resistor wrapped around the air temp sensor terminals should still work on Gen 2 as a last resort. Had that on my 2011 for about 6 years now. Getting ERDTT on short local trips or just pulling out of the garage always bothered me.
 

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I don't, but the trick of wrapping a resistor wrapped around the air temp sensor terminals should still work on Gen 2 as a last resort. Had that on my 2011 for about 6 years now. Getting ERDTT on short local trips or just pulling out of the garage always bothered me.
I wasn't able to get a resistor to fit between the terminals on my Gen2's sensor and still have the sensor able to be plugged in, but someone else may have smaller resistors on hand. You also need different values, 22kohms should work down to -40 degrees (F or C).
 

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I wasn't able to get a resistor to fit between the terminals on my Gen2's sensor and still have the sensor able to be plugged in, but someone else may have smaller resistors on hand. You also need different values, 22kohms should work down to -40 degrees (F or C).
An 1/8W 39K Ohm resistor should fit
 
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