Troubleshooting

194 RENR2696-01
Troubleshooting Section
•
Not OK – There is a problem with the fuel injection
pump. Contact t
he Perkins Technical Support
Centre in order to check if the software version
is correct. Also check that there have been no
software upda
tes. If the problem still exists contact
the Perkins Tecnical Support Centre in order to
change the fuel injection pump. The warranty of
the fuel inje
ctionpumpwillbeaffectedifthepump
is replaced without prior consultation. Replace the
fuel injection pump.
Repair: Refer to Disassembly and Assembly, “Fuel
InjectionPumpRemoveandInstall”.
STOP.
Test Step 11.
Check the Voltage Load
Protection
Module (VLPM)
g00908544
Illustration 106
Voltage load protection module (VLPM) connections
Use this test in order to verify that the Voltage Load
Protection Module (VLPM) has the correct resistance.
Also use this procedure if there is a problem with a
blown fuse. A faulty Voltage Load Protection Module
(VLPM) may be the cause of the problem.
A. Measure the resistance between pin 1 and pin 2
of the Voltage Load Protection Module (VLPM).
B. Measure the resistance between pin 3 and pin 4
of the Voltage Load Protection Module (VLPM).
Expected Result:
The resistance should be less than 1 ohm between
pin1andpin2.
The resistance should be less than 1 ohm between
pin 3 and pin 4.
The resistance should be greater than 1 ohm
between pin 2 and pin 3.
Note: The resistance between pin 2 and pin 3 may
differ. The resistance may be less than 1 ohm. This
is OK.
Results:
•
OK – STOP.
•
Not OK – There is a problem with the voltage load
protection module.