Description:

Error code ECU 001761.17 is activated when the DEF tank fluid level drops below 10 percent. This moderate level warning is intended to prompt refilling to ensure continuous operation of the emissions control system.

Reaction:

The ECU may initiate warnings to the operator to refill the DEF tank to avoid potential emissions control deactivation or derate conditions.

Recommendations:

• Check DEF Levels and Refill as Needed: Regularly monitor and maintain the DEF fluid level above the 10 percent threshold to ensure continuous emissions control functionality.
• Inspect DEF Tank and System for Leaks: Examine the DEF tank and associated components for any signs of leaks or damage that could cause fluid loss.
• Test DEF Level Sensors: Ensure that the DEF level sensors are accurately reading and reporting fluid levels. Calibrate or replace sensors if discrepancies are noted.
• Reset ECU and Monitor DEF System: After refilling and any necessary repairs, reset the ECU to clear the warning and monitor the DEF system for continued proper operation.

Note:

Keeping the DEF tank adequately filled is crucial for maintaining compliance with emissions regulations and ensuring optimal vehicle performance. Regular checks are recommended to manage DEF levels effectively.