Volkswagen CJDA Workshop Manual page 420

3
Industriemotoren - Industrial Engines 2009 ▶
Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
– Connect multimeter to contacts 1 + 3 of connector using test
leads from -V.A.G 1594- to measure voltage.
– Switch on ignition. Specification: at least 4.8... 5.2 V
– Switch off ignition.
If the specification is not attained:
– Check wiring of Hall sender as follows:
– Using adapter cable -V.A.G 1598/39-1-, connect test box
-V.A.G 1598/42- to wiring harness of control unit
The engine control unit is not connected by this action.
– Check wiring between test box and connector for open cir-
cuit referring to current flow diagram.
◆ Contact 1 + socket 10
◆ Contact 2 + socket 44
◆ Contact 3 + socket 51
● Cable resistance: max. 2.0 Ω.
– Also check wiring for short to one another, short to battery
earth/engine earth and short to battery positive. Specifica-
tion: ∞ Ω
If no wiring fault is detected and voltage was present between
contacts 1 + 3:
– Renew hall sender -G40-.
– Then, read event memory of engine control unit, and clear
event memory if necessary
– 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-
2.7 Checking intake air temperature sender
-G42-
Special tools and workshop equipment required
◆ Hand multimeter -V.A.G 1526- or multimeter -V.A.G 1715-
◆ Auxiliary measuring set -V.A.G 1594-
◆ Test box -V.A.G 1598/42- with adapter cable
-V.A.G 1598/39-2-
◆ Current flow diagram
Test prerequisites
● Fuses must be OK.
● The battery voltage must be at least 11.5 V.
404
Repair Group 23 - Mixture preparation - injection
⇒ P age
26, read event memory.
⇒ P age
486, current flow diagrams.
⇒ P age
418.
⇒ P age
24.