171 spn 3 fmi

Apr 1, 2020 - 12:28 AM

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  • I have that issue on freightliner 2013 what can I do

  • Sorry for the late reply here. That code is for Ambient Air Temperature Sensor. It is either the sensor, or the connector/harness. Take a look for a sensor near the mirror, or somewhere that exposed that it would read the outside temperature.

    You can look at www.TruckFaultCodes.com (or the mobile apps) to find this as well.