Operation Manual

70 MS 241 C
8.2 Testing
8.2.1 Test preparations
The following steps must be carried
out before testing.
– Carry out troubleshooting
according to troubleshooting
chart, b 8.5
– Remove shroud, b 6.4
– Remove the air filter, b 13.1
– Remove coarse dirt from around
the screwed connections, control
unit, switchgear, solenoid valve
and diagnostic jack
8.2.2 Connect the test lead
– Remove shroud, b 6.4
– Remove the air filter, b 13.1
: Remove the plug (1)
2410RA173 TG
1
: Remove diagnostic jack (1) from
the guide (arrow)
: Orient the plug (1) of the
M-Tronic test lead
5910 840 0903 so that the
angled shapes (arrows) match
between diagnostic jack (2) and
plug (1)
: Push the plug (1) of the
M-Tronic test lead
5910 840 0903 into the
diagnostic jack (2) as far as it will
go
– After completion of the test
procedure, unplug the test lead
from the diagnostic jack
2410RA213 TG
1
2410RA214 TG
1 2
2410RA215 TG
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2
: Press the diagnostic jack (1) into
the mount (arrow) until it is fully
home
– Reassemble remaining parts in
reverse order
8.2.3 Check screwed and plug
connections as well as
switch
– Carry out test preparations,
b 8.2.1
There must be a reliable connection
for communication between control
unit, switching device and solenoid
valve. If communication between
control unit and solenoid valve is
interrupted or faulty, the control unit
does not initiate an ignition spark.
– In the event of a malfunction or if
there is no ignition spark, first
check the plug connections and
wiring harness between control
device and solenoid valve
2410RA216 TG
1