5.3.12 Display group 34 - Charge pressure posi-
tioner
Test prerequisites
● Engine running at idling speed.
● Engine warm, coolant temperature not below 80°C.
● Intake air temperature < 40°C.
Display
zone
Operating mode or component
Specification
Evaluation
1
Engine speed
760...940 rpm
---
2
Charge pressure positioner (specified)
90...101 %
---
3
Charge pressure positioner (actual)
90...101 %
4
Charge pressure positioner, activation
90...100 %
Evaluation: display group 34, display zone 3 - charge pres-
sure control
Display shows
Possible cause of fault
Fault remedy
Deviation from
specification
◆
Position sender for charge pressure
positioner -G581- defective
◆
Leaks between turbocharger and en-
gine (charge air system)
◆
Charge pressure control defective
– Checking charge pressure control
– -G581- Check.
Evaluation: display group 34, display zone 4 - charge pres-
sure control
Display shows
Possible cause of fault
Fault remedy
Deviation from
specification
◆
Position sender for charge pressure
positioner -G581- defective
◆
Leaks between turbocharger and en-
gine (charge air system)
◆
Charge pressure control defective
– Checking charge pressure control
– -G581- Check.
5.3.13 Display group 99 - exhaust gas tempera-
ture sender
Test prerequisites
● Engine running at idling speed.
● Engine warm, coolant temperature not below 80°C.
● Intake air temperature < 40°C.
Display
zone
Operating mode or component
Specification
Evaluation
1
Engine speed
760...940 rpm
---
2
Exhaust gas temperature ahead of turbo-
charger
80...300 °C
Industriemotoren - Industrial Engines 2009
▶
Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
3
5 Measured value blocks, engine codes CJDA, CJDD
103