◆
Test box -V.A.G 1598/42- with adapter cable
-V.A.G 1598/39-1-
◆
Current flow diagram
Note
Instead of the vehicle diagnosis, testing and information system
other diagnosis systems, such as the DiagRA, may be used as
well.
Test prerequisites
● Fuses must be OK.
● The battery voltage must be at least 11.5 V.
● All electrical consumers must be switched off.
● Earth connections OK
Test procedure
– Switch off ignition.
Checking resistance
Pull connector -1...4- off injector to be tested.
– Connect multimeter to valve contacts 1 + 2 using test leads
from auxiliary measuring set -V.A.G 1594D- to measure re-
sistance. Specification: 50.0…700.0 kΩ
If the specification is not attained:
– Renew the defective injector.
– Then, read event memory of engine control unit, and clear
event memory if necessary
If specification is attained:
Checking for short-circuit to earth
– Using test leads from auxiliary measuring set -V.A.G 1594D-,
connect multimeter to relevant injector as follows:
◆
Injector contact 1 + engine earth
◆
Injector contact 2 + engine earth
Specification: ∞ Ω.
If the specification is not attained:
– Renew the defective injector.
Industriemotoren - Industrial Engines 2009
▶
Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
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2 Checking components and functions
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