Description:

Error code ECU 001761.18 is triggered when the DEF tank fluid level falls below 0 percent, indicating that the tank is effectively empty. This critical condition can severely impact the vehicle’s emissions control system and could lead to engine derate or shutdown to comply with emissions regulations.

Reaction:

Error code ECU 001761.18 is triggered when the DEF tank fluid level falls below 0 percent, indicating that the tank is effectively empty. This critical condition can severely impact the vehicle’s emissions control system and could lead to engine derate or shutdown to comply with emissions regulations.

Recommendations:

• Refill DEF Tank Immediately: Refill the DEF tank with the appropriate DEF to ensure proper emissions control and engine operation.
• Inspect DEF System for Leaks: Check the DEF tank and associated piping and components for leaks that could have led to the loss of DEF.
• Test DEF Level Sensors: Verify that the DEF level sensors are functioning correctly. Replace or recalibrate if they are giving inaccurate readings.
• Check for System Errors: Ensure that no additional system errors are causing the DEF levels to be misread.
• Reset ECU and Conduct System Tests: After refilling the tank and ensuring all components are in good working order, reset the ECU to clear the error code and test the system to confirm normal operation.

Note:

Maintaining adequate DEF levels is critical for meeting emissions regulations. Regular monitoring and maintenance of the DEF system can help prevent situations where DEF levels fall critically low.