P04D1

2017-10-10

Description:

  • EGR Temperature Sensor C Circuit High

Possible Symptoms:

  • Verify the EGR temperature sensor wiring connection for any loose or corroded terminals

  • Inspect the EGR temperature sensor for any signs of damage, such as cracks or corrosion, and replace if necessary

  • Clean the EGR system components, including the EGR temperature sensor, to remove any carbon buildup or debris

  • Test the EGR temperature sensor using a multimeter to ensure it is functioning correctly, and replace if necessary

  • If all else fails, consider replacing the EGR valve itself, as a malfunctioning valve could be causing the high circuit reading

Possible Causes:

  • Faulty EGR temperature sensor

  • Short or open circuit in the wiring associated with the EGR temperature sensor

  • Failed EGR valve

  • Engine coolant temperature sensor malfunction

  • ECM (engine control module) malfunction

Related Parts:

Possible Solutions:

  • Check engine light illuminates

  • Decreased fuel efficiency

  • Rough idling or engine misfire

  • Engine stalling or hesitation

  • Increased emissions

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