Case IH P203E: Reductant Level Sensor Circuit Fault

The fault code indicates an issue with the reductant level sensor circuit. This may affect the ability to accurately monitor the level of reductant in the system.

1. 1

   Wiring and connections related to the reductant level sensor

2. 2

   The integrity of the reductant level sensor circuit

3. 3

   Power supply and ground connections for the sensor circuit

1. 1

   Inspect the wiring and connectors

   Check for damage, corrosion, or loose connections in the wiring and connectors associated with the reductant level sensor circuit.

2. 2

   Test the circuit continuity

   Use a multimeter to test for continuity in the reductant level sensor circuit to identify any breaks or poor connections.

3. 3

   Verify power and ground signals

   Check that the reductant level sensor is receiving the correct power and ground signals as specified in the service manual.