INITIALISATION PROCEDURE FOR LEARNING VALUE IN COMMON RAIL ENGINE <4N1>


caution If the following services shown in the table are carried out on the common rail engine, use the M.U.T.-III to initialise the learning value. This is essential to early and correctly operate the exhaust gas processing system.

Initialising items
Service items
 Initialisation item
 Forcible DPF regeneration
At replacing supply pump *
 No. 21 Supply pump exchange service
 -
At replacing diesel particulate filter (DPF)
 No. 40 DPF exchange service
 -
At replacing exhaust differential pressure sensor
 No. 41 DPF dp sensor exchange service
 Necessary
At replacing catalytic converter
 No. 42 DPF system malfunction service
 Necessary
At replacing engine oil (Only in storing diagnosis code No. P252F)
 No. 43 Engine oil exchange service
 -
At replacing EGR cooler
 No. 53 Fuel consumption initialized
 -
note *: After Initialising the learning value, carry out the supply pump correction learning in order to replace the supply pump. (Refer to ).

INITIALISATION PROCEDURE
caution To prevent damage to M.U.T.-III, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting M.U.T.-III.

1.After the ignition switch is in "LOCK" (OFF) position, connect the M.U.T.-III to the diagnosis connector.
2.Turn the ignition switch to the "ON" position. (Do not start the engine.)
3.Select "MPI/GDI/DIESEL" from System select Screen of the M.U.T.-III.
4.Select "Special Function" from MPI/GDI/DIESEL Screen.
5.Select "Initialization" from Special Function Screen.
6.Select the appropriate initialising item from the Initialization Screen to initialise it.
7.Use M.U.T.-III to carry out the forcible DPF regeneration. [Refer to GROUP 17 - Emission Control <DIESEL> - Diesel Particulate Filter (DPF) System - Forcible DPF Regeneration ].