Scan Tool Operating Instructions - AK Automotive Training

Manufacturer Applications
This function is designed to be used AFTER the technician has topped up the additive
reservoir. Additives can be purchased from the manufacturer’s parts department. This
function resets the 'Quantity of Additive' in the reservoir value stored in the Additive
CM to zero. The technician must then follow the instructions precisely to enable the
CM to re-learn the value.
IMPORTANT: The OmiCheck instructs the technician to perform the following:
1. Switch ignition OFF.
2. Remove the diesel filler cap.
3. Wait for 10 seconds.
4. Replace the diesel filler cap.
5. Switch the engine on and run for 1 minute.
6. Switch the engine off and wait for 4 minutes.
7. Activate nothing on the vehicle during this time, especially not the key fob!
8. Switch the ignition ON.
9. Use the OmiCheck to Clear DTCs in the Additive ECU.
10. Use the OmiCheck to Clear DTCs in the Engine ECU.
The sequence of events MUST be started at within 10 seconds of the OmiCheck
displaying the "To complete reset do the following..." message. If it is not performed
in the correct order or started within 10 seconds the vehicle will not re-learn the new
Additive value correctly and the Particle Filter warning lamp will continue to flash or
stay on. If this occurs the function must be re-selected on the OmiCheck and the
procedure re-started.
FILTER RESET:
This function is used when the Particle Filter itself has been changed. If the filter does
need to be changed it should be done prior to carrying out this function and, if
applicable, prior to carrying out an additive change. If the Particle Filter does need to
be changed the Particle Filter Warning Lamp will start to flash on the dashboard of
the vehicle. A fault code (DTC) is also stored on both the Engine ECU and the
Additive ECU, usually describing the problem as ‘Filter clogged’ or ‘Filter blocked’.
Sometimes performing a ‘Regeneration’ (see above) may unclog or unblock the filter.
If it does not then the filter must be changed. This function is designed to be used
AFTER the technician has changed the filter.
This function resets the 'Quantity of Additive in the Filter' value stored in the Additive
CM to zero. The technician must then follow the instructions precisely to enable the
CM to re-learn the value.
IMPORTANT: The OmiCheck instructs the technician to perform the following:
1. Switch ignition OFF.
2. Remove the diesel filler cap.
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