ECU 003517.07 – DEF Tank Fluid Level Sensor Obstructed. John Deere System Advisory.

ECU 003517.07 (ECU 3517.07)

Code: 003517.07

Shortcode: 3517.07

Description:

This code is set when the DEF tank level sensor detects debris obstructing its operation. Such obstructions can lead to inaccurate readings of the DEF fluid level, which may result in improper DEF dosing and reduced effectiveness of the emission control system.

Reaction:

The ECU may provide incorrect DEF level readings, leading to potential over- or under-dosing of DEF. This can affect the efficiency of the aftertreatment system and may trigger warning lights or error messages.

Recommendations:

  • Inspect and Clean DEF Sensor: Remove the DEF tank level sensor and inspect it for any debris or obstructions. Clean the sensor thoroughly to ensure it can operate correctly.
  • Check DEF Tank for Contaminants: Inspect the DEF tank for any debris or contaminants that could obstruct the sensor and clean the tank if necessary.
  • Test Sensor Functionality: After cleaning, reinstall the sensor and test it to ensure it provides accurate fluid level readings.
  • Reset ECU and Monitor System: Reset the ECU to clear the fault code and monitor the DEF level readings to ensure accurate reporting and proper system functionality.

Note:

Maintaining a clean DEF tank and sensor is essential for accurate DEF management and the efficient operation of the emission control system. Regular inspections and cleaning can prevent sensor obstructions and maintain system integrity.


Control Units: John Deere