Display Group 7 - Temperatures; Display Group 10 - Air Quantities - Volkswagen CJDA Workshop Manual

3
Industriemotoren - Industrial Engines 2009 ▶
Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
Display shows Possible cause of fault
Above specification
◆ Engine too cold

5.3.5 Display group 7 - Temperatures

Test prerequisites
● Ignition switched on.
● Engine is off and cooled down.
Display Operating mode or component
zone
1 Fuel temperature
2 Engine oil temperature
3 Intake air temperature
4 Coolant temperature
1)
Details of temperature specifications are not possible. When the engine is cold the fuel, intake air and coolant temperatures must
equate approximately to ambient temperature. If one of the temperature readings is noticeably different, test the relevant sender.
Evaluation: Display group 7, display zone 1 - fuel tempera-
ture
Display shows Possible cause of fault
Large deviation
◆ Short circuit or fuel temperature send-
from ambient tem-
perature
Evaluation: display group 7, display zone 3 - Intake air tem-
perature
Display shows Possible cause of fault
Large deviation
◆ Short circuit or intake air temperature
from ambient tem-
perature
Evaluation: Display group 7, display zone 4 - coolant tem-
perature
Display shows Possible cause of fault
Large deviation
◆ Short circuit or defective coolant tem-
from ambient tem-
perature

5.3.6 Display group 10 - Air quantities

Test prerequisites
● Engine running at idling speed.
● Engine warm, coolant temperature not below 80°C.
98 Repair Group 01 - Vehicle self-diagnosis
er -G81- defective
sender -G42- defective
perature sender -G62-
Fault remedy
– Run engine at increased speed to
warm up, and repeat test
Specification
Approx. ambient tem-
1)
perature
---
Approx. ambient tem-
1)
perature
Approx. ambient tem-
1)
perature
Fault remedy
⇒ P age 409
– -G81- Check.
Fault remedy
⇒ P age 404
– -G42- Check.
Fault remedy
⇒ P age 407
– -G62- Check.
Evaluation
⇒ P age 98
---
⇒ P age 98
⇒ P age 98