Mack and Volvo EPA13 GHG17 Engine NOx Conversion Monitor Test

This guide provides step-by-step instructions on how to use JPRO to perform the NOx Conversion Monitor Test for Mack and Volvo EPA13 to GHG17 engines.

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Overview

The NOx Conversion Monitor Test evaluates the efficiency of the SCR system in reducing NOx emissions. This test is useful for:

• Confirming active DTCs

• Checking DEF quality

• Comparing system performance before and after repairs

Supported Engines

✔ Mack and Volvo EPA13 to GHG17 engines

Test Procedure

1. Select NOx Conversion Monitor Test and press Enter or click the Start button.

2. The NOx Conversion Monitor Test dialog box will appear.
   

3. Click the Additional Info button for more details about the test.
   

4. Press Start to begin the test.

   • The status indicator will change from “Not Running” to “Running”, and the Start button will change to Stop.

5. A confirmation message will appear the first time the test runs. Read the message and click OK.
   

6. As the test progresses, the status section will display real-time updates and test results upon completion.
   

7. To stop the test at any time, press the Stop button.

8. Click Exit to close the test window.

For more information on JPRO Diagnostics, refer to the JPRO Diagnostics Guide.