INSITE™ electronic service tool NOx Reset Test Issues and Recommendations

Page 1 of 5

Technical Service Bulletin Number
TSB150061

Technical Service Bulletin

Subject
INSITE™ electronic service tool NOx Reset Test Issues and Recommendations

Issue
Product Affected

ISX15 CM2250 SN
ISM11 CM876 SN

The INSITE™ electronic service tool NOx Reset Test is needed to reset the On-Board
Diagnostics (OBD) NOx monitor after troubleshooting/repairs of fault codes 2772, 2773. The
INSITE™ electronic service tool NOx Reset Test is part of the repair verification.
There are several conditions noted by INSITE™ electronic service tool, displayed in the test
screen, which must be fulfilled. However, there are additional conditions not noted by
INSITE™ electronic service tool that can cause test initiation failure and/or return a “Failed”
result.
There are also conditions that must be fulfilled if the test shows “Paused”.

Verification
When using the INSITE™ electronic service tool NOx Reset Test, please see Resolution
section below if any of the following issues are encountered:

Unable to be started
Shows “Paused”
Returns a “Failed” decision

https://qsol2.cummins.com/qs3/pubsys2/xml/en/tsb/2015/tsb150061.html

7/6/2015

INSITE™ electronic service tool NOx Reset Test Issues and Recommendations

Page 2 of 5

Resolution
Ensure the following conditions have been met before attempting to start the INSITE™
electronic service tool NOx Reset Test.
NOTE: NOTE: If the unit is not set up to run over 2000 Revolutions Per Minute (RPM) the
INSITE™ electronic service tool NOx Reset Test should not be used. The unit must be
driven instead. Observe posted speed limits, traffic laws, and road conditions. Follow
the below driving conditions:

Loaded (preferably with trailer)
Engine speed between 1300 and 1500 RPM
Highway driving (or equivalent duty cycle)

INSITE™ electronic service tool NOx Reset Test enable conditions (verified by INSITE™
electronic service tool):

Clutch pedal is released
Brake pedal is released
Transmission is in neutral or park
Power Takeoff (PTO) or Remote (PTO) is off
Vehicle speed is 0 mph
Parking brake is set
Throttle pedal is released

INSITE™ electronic service tool NOx Reset Test enable conditions (not verified by INSITE™
electronic service tool)

Ambient temperature is above 0 °C [ 32 °F ]
If ambient temperature is below 18 °C [ 65 °F ], the front grill must be completely covered
Cooling fan is engaged
Idle shutdown is disabled

Once enable conditions are all "fulfilled" the INSITE™ electronic service tool NOx Reset Test is
able to be started. The status bar will display “Paused” for a period of time, see Figure 1.
This means the OBD NOx monitor is not ready to collect data and make a pass or fail
decision.
This condition will eventually clear and the status bar will advance. Once the status bar
reaches 100%, INSITE™ electronic service tool electronic service tool will return “Passed,” see
Figure 2, or “Failed,” see Figure 3.
1. If the test passes, the OBD NOx monitor has collected adequate data and the repair has
been validated. The OBD NOx monitor has been reset, see Figure 2.

No action needed

https://qsol2.cummins.com/qs3/pubsys2/xml/en/tsb/2015/tsb150061.html

7/6/2015

INSITE™ electronic service tool NOx Reset Test Issues and Recommendations

Page 3 of 5

2. If the test "fails" the repair is not validated and further troubleshooting is needed.

Refer to troubleshooting, take appropriate actions, and then re-run test

3. If the test will not complete and reach a pass or fail decision (status bar does not reach
100%), please see the following suggestions:

Test must be repeated until OBD NOx monitor accumulates sufficient data to make a
pass or fail decision
A key cycle is required when repeating the test

4. If the test repeatedly fails to complete, the unit must be driven instead. Observe posted
speed limits, traffic laws, and road conditions. Follow the below driving conditions:

Loaded (preferably with trailer)
Engine speed between 1300 and 1500 RPM
Highway driving (or equivalent duty cycle)

Figure 1, Status Bar Paused

https://qsol2.cummins.com/qs3/pubsys2/xml/en/tsb/2015/tsb150061.html

7/6/2015

INSITE™ electronic service tool NOx Reset Test Issues and Recommendations

Page 4 of 5

Figure 2, Status Bar Passed

https://qsol2.cummins.com/qs3/pubsys2/xml/en/tsb/2015/tsb150061.html

7/6/2015

INSITE™ electronic service tool NOx Reset Test Issues and Recommendations

Page 5 of 5

Figure 3, Status Bar Failed

Warranty Statement
The information in this document authorizes specific changes to the repair practice for failures
covered under product warranty coverages.

Document History
Date
2015-5-4

Details
Module Created

Last Modified: 23-Jun-2015
Copyright © 2000-2010 Cummins Inc. All rights reserved.

https://qsol2.cummins.com/qs3/pubsys2/xml/en/tsb/2015/tsb150061.html

7/6/2015