Massey Ferguson E4363.02 – Engine Control Unit (ECU): Issue With The DOC Outlet Temperature Sensor

The fault code indicates a general erratic, intermittent, or incorrect signal issue with the DOC (Diesel Oxidation Catalyst) Outlet Temperature Sensor.

• 7616
• 5612
• 7622
• Interim Tier 4 (2012-2015)
• 7614
• 5611
• 7615
• 5610
• 5613
• 7620
• 5609
• 7618
• 5608
• 7619
• 7626
• 7624

1. 1

   Visually inspect the DOC Outlet Temperature Sensor mounting to ensure it is not loose and fits tightly in the exhaust pipe

2. 2

   Check the sensor for signs of tampering, physical damage, or being left open to the atmosphere

3. 3

   Perform a visual inspection for exhaust gas leaks before the DOC inlet, as leaks can cause erratic temperature readings at the outlet

4. 4

   Inspect the wiring harness leading to the sensor for chafing, melting, breaks, or shorts to ground/battery

1. 1

   Power Down

   Turn off the tractor and disconnect the battery to ensure safety while working on the ECU and exhaust sensors. Allow the exhaust system to cool completely.

2. 2

   Locate the Sensor

   Locate the DOC Outlet Temperature Sensor on the exhaust aftertreatment assembly (downstream of the Diesel Oxidation Catalyst).

3. 3

   Inspect and Secure

   If the sensor is simply loose, tighten it to the specified torque and clear the code.

4. 4

   Fix Exhaust Leaks

   If an exhaust leak was found prior to the DOC, replace the necessary exhaust clamps or gaskets and retest.

5. 5

   Replace the Sensor

   If the wiring is intact but the sensor is internally shorted or open, disconnect the sensor's electrical connector. Unthread the faulty sensor from the exhaust pipe.

6. 6

   Install New Sensor

   Apply high-temperature anti-seize to the threads of the new sensor (if not pre-applied), thread it into the DOC outlet, and tighten securely. Reconnect the electrical harness.

7. 7

   Clear Codes

   Reconnect the battery, turn on the ignition, and use a diagnostic tool to clear the E4363.02 fault code from the ECU. Run the engine to verify the code does not return.