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.
Malfunctioning or faulty reductant control module
Short circuit or wiring issue in the internal temperature sensor circuit
Faulty temperature sensor
Defective temperature sensor connector or wiring connection
Check engine light is illuminated on the dashboard
Decreased engine performance and power
Increased fuel consumption
Difficulty starting the engine
Poor emission levels