3.6
Adapting engine control unit -J623- to
exhaust gas recirculation valve
Note
◆
If the exhaust gas recirculation valve has been renewed, it
must be adapted.
◆
The exhaust gas recirculation valve -N18- and exhaust gas
recirculation potentiometer -G212- are installed in one com-
mon housing.
Prerequisites
● Fuses must be OK.
● The battery voltage must be at least 11.5 V.
● Earth connections OK
● All electrical consumers must be switched off.
Procedure
– Connect vehicle diagnostic tester, and select engine control
– Select diagnosis function “014-Long adaptation”. The ignition
must be switched on for this purpose.
– Select “Channel number 123”:
– Press
Keyboard
field.
– Using the on-screen keyboard, enter the value 1.
– Press
←
button.
– Press
Confirm
button to reset the learnt value.
– Then, read event memory of engine control unit, and clear
event memory if necessary
If a fault is stored in the event memory:
– Check exhaust gas recirculation valve -N18- with exhaust
gas recirculation potentiometer -G212-
– Clear event memory
– Repeat procedure.
3.7
Adapting engine control unit -J623- to
throttle valve module -J338-
Note
◆
If the throttle valve module -J338- has been renewed, it must
be adapted.
◆
The throttle valve module -J338- and throttle valve potenti-
ometer -G69- are installed in one common housing.
Prerequisites
● Fuses must be OK.
● The battery voltage must be at least 11.5 V.
Industriemotoren - Industrial Engines 2009
▶
Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
3
3 Engine control unit -J623-
423
