ECU 004360.12 – SCR Inlet Temperature Faulty. John Deere System Advisory.

ECU 004360.12 (ECU 4360.12)

Code: 004360.12

Shortcode: 4360.12


This code is triggered when the SCR temperature module detects a fault with measuring the inlet temperature. This can affect the SCR system’s ability to properly reduce NOx emissions.


The ECU may limit or adjust the operation of the SCR system to manage the detected fault, potentially impacting NOx reduction efficiency and overall vehicle performance.


  • Inspect Temperature Sensor: Check the SCR inlet temperature sensor for proper operation. Replace the sensor if it is faulty.
  • Inspect Wiring and Connections: Look for damaged, frayed, or loose wiring and connectors associated with the SCR inlet temperature sensor. Repair or replace as necessary.
  • Check for Contaminants: Ensure that the sensor and its surroundings are free from contaminants that could affect the temperature readings.
  • Test Sensor Circuit: Use diagnostic tools to test the sensor circuit for continuity and correct voltage levels.
  • Reset ECU and Monitor System: After resolving the issue, reset the ECU to clear the fault code and monitor the system to ensure accurate temperature measurement.


Maintaining accurate temperature readings at the SCR inlet is crucial for the effectiveness of the NOx reduction process. Regular maintenance and inspections can help prevent temperature-related faults.

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