Deutz-Fahr P0544-13: Exhaust Gas Temperature Sensor (Upstream DOC) - Open Circuit

The fault code indicates an open circuit in the exhaust gas temperature sensor located upstream of the diesel oxidation catalyst (DOC). This condition prevents the system from properly monitoring exhaust gas temperature, which can affect engine performance and emissions control.

1. 1

   Wiring and connections to the exhaust gas temperature sensor

2. 2

   Sensor itself for physical damage or corrosion

3. 3

   Continuity of the circuit from the sensor to the controller

1. 1

   Inspect

   Check the wiring and connectors for the exhaust gas temperature sensor for damage, corrosion, or loose connections.

2. 2

   Test

   Use a multimeter to test for continuity in the circuit between the sensor and the controller.

3. 3

   Replace

   If the circuit is open, replace the exhaust gas temperature sensor or repair the wiring as needed.