How to Use DDDL to Perform ATD Desaturation Test for GHG17 Engine

This instruction show you guide on how to use Detroit Diesel Diagnostic Link software to perform ATD desaturation test for Detroit GHG17 engine.

This procedure should only be used after following the steps in Refer to section “Diesel Fuel Contamination – Vehicles equipped with the 1-BOX™ATS” .

 

The ATD Desaturation procedure assists the technician with the removal of fuel from the aftertreatment system after an upstream failure has caused raw fuel to enter the aftertreatment system. This test usually runs 45 minutes to an hour if high aftertreatment temperatures are not reached.

 

Note:When running this procedure, the technician needs to remain in the vehicle in case the aftertreatment temperatures exceed a predetermined threshold.

 

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1 The ATD Desaturation test can be found under the Actions menu in DiagnosticLink

2 Click the start button to begin.

 

NOTICE

If any aftertreatment temperature sensors increase above 500ºC (932ºF), a pop-up message will display instructing the user to press the accelerator pedal to 100% and to press the stop button to cancel the test until all ATD temperatures are below 200ºC (392ºF).

 

Note:The pop-up instructions will re-display until a reduced temperature target has been attained.

Action Required:

Depress the accelerator pedal to 100% and hold to increase the airflow through the exhaust Aftertreatment.

This is a manual effort needed to attempt to reduce internal ATD temperatures until they are below 200ºC (392ºF).

 

3 Once the ATD Desaturation procedure has successfully completed

 

More repair cases for Detroit Diesel engines,please refer to:Detroit Diesel Engine Repair