Volkswagen CJDA Workshop Manual page 432

3
Industriemotoren - Industrial Engines 2009 ▶
Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
– Check wiring between test box and connector for open cir-
cuit referring to current flow diagram.
◆ Contact 1 + socket 25
◆ Contact 2 + socket 41
◆ Contact 3 + socket 53
◆ Contact 4 + socket 49
◆ Contact 5 + socket 34
● Cable resistance: max. 2.0 Ω.
– Additionally check wires for short to one another. Specifica-
tion: ∞ Ω
If no wiring fault is detected and voltage was present between
contacts 1 + engine earth and contacts 1 + 3:
– Renew throttle valve module -J338-
– Adapt throttle valve module -J338-
– Then, read event memory of engine control unit, and clear
event memory if necessary
If no wiring fault is detected and no voltage was present be-
tween contacts 1 + engine earth and contacts 1 + 3:
– Pull connectors off any components which are connected to
this voltage supply line
– Check voltage supply and wires on these components.
If no wiring fault is detected and no voltage was present on
these components:
– Renew engine control unit -J623-
3 Engine control unit -J623-
WARNING
Adhere to the general safety regulations and the notes on
repair work on the engine!
Checking voltage supply for engine control unit
Renewing engine control unit
Adapting exhaust gas pressure sensor 1 -G450-
Reading injector delivery calibration values/injector voltage cali-
bration values, and storing them in engine control unit
⇒ P age
421.
Adapting engine control unit -J623- to position sender for
charge pressure positioner -G581-
Adapting engine control unit -J623- to exhaust gas recirculation
⇒ P age
valve 423.
Adapting engine control unit -J623- to throttle valve module
⇒ P age
-J338- 423.
416 Repair Group 23 - Mixture preparation - injection
⇒ P age
355.
⇒ P age
423.
⇒ P age
26, read event memory.
⇒ P age
486, current flow diagrams.
⇒ P age
418.
⇒ P age 1
⇒ P age
⇒ P age
418.
⇒ P age
⇒ P age
422.
417.
420.