Scan Tool Operating Instructions - AK Automotive Training

Manufacturer Applications
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 and/
or 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 and 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.
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.
ADDGO2 (2002 onwards)
There are two options in the Reset menu:
RESERVOIR RESET:
This function is used whenever the amount of additive in the reservoir falls below the
pre-determined minimum level. There are two types of additive used in these
systems, DPX42 is the original additive used. A full tank of DPX42 will last for 50,000
miles. EOLYS176 is a newer additive. A full tank of EOLYS176 will last for
approximately 75,000 miles. When the additive has reached the minimum level the
Particle Filter Warning Lamp will start to flash on the dashboard of the vehicle
informing the driver that the additive must be topped up. A fault code (DTC) is also
stored on both the Engine ECU and the Additive ECU.
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