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Detroit DD16 GHG14 (2014-16) Fault Code: SPN 174 FMI 17 (MCM) Fuel Temperature Sensor, Minimum Temperature Plausibility

NOTE: During cold ambient temperatures, this fault can be induced if vehicle is equipped with auxiliary oil or coolant heaters. If unit is equipped with an auxiliary heater, clear fault code and release. This malfunction indication light, MIL only fault.

NOTE: If any cooling system codes present, fix this first.

PROBABLE CAUSES:
1. Fuel temperature sensor.
2. Fuel temperature sensor connector/harness.