Description:

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.

Reaction:

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.

Recommendations:

• 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.

Note:

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.