2017-10-10
Check the reductant control module connections and wiring for any loose or damaged components.
Test the internal temperature sensor using a multimeter to ensure it is functioning correctly.
Replace the reductant control module internal temperature sensor if it is determined to be faulty.
If all else fails, consider replacing the entire reductant control module, as it may be experiencing internal malfunctions that cannot be repaired.
Faulty reductant control module internal temperature sensor
Wiring or connector issue with the reductant control module internal temperature sensor
Check engine light illuminates
Decreased engine performance or power
Poor fuel efficiency
Difficulty starting the vehicle
Increased emissions