The Aftertreatment Hydrocarbon Dosing System Test is used to verify proper operation of the aftertreatment hydrocarbon doser. It allows for inspection of the spray pattern and quantity of fuel dispensed.
The aftertreatment hydrocarbon doser must be removed and the mounting hole capped before running this test to prevent vehicle damage.
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Procedures:
1 Select Aftertreatment Hydrocarbon Dosing System Test and press Enter or the Start button.
2 The test dialog will be displayed.
3 Once all instructions have been followed and preconditions have been met, click the Next button to proceed.
4 Select a Delay Start Time, if desired, and click the Start button to begin the test. The hydrocarbon doser should start pumping out fuel into the measuring container over a period of 3 minutes.
5 The dialog displays examples of correct and problem spray patterns that can be detected by observing the doser as it dispenses fuel into the collection container.
6 When the test is completed, results information is displayed, including steps to take depending on how much fuel was dispensed.
7 If desired, you may select the Rerun button to rerun the test.
8 Once the test has been completed, click the Exit button to return to the test selection dialog.
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