Troubleshooting

RENR2696-01 81
Troubleshooting Section
Note: While the engine is cranking and running, the
battery voltag
e at terminal P40:5 should drop to 0
volts.
Ensure that th
e problem has been eliminated.
Results:
•
Check for active diagnostic codes – STOP.
Test Step 2.
Connect a test ECM to the engine in order to
determine if t
he original ECM is causing the problem.
Note: The parameters of the test ECM must match
the parameter
s in the suspect ECM. If the test ECM
resolves the problem, reconnect the suspect ECM.
Verify that the problem returns. If the problem returns,
replace the s
uspect ECM.
Results:
•
OK – STOP.
•
Not OK – Proce
ed to Test Step 3.
Test Step 3.
Contact the Perkins Technical Support Centre in
order to change the fuel injection pump. The warranty
of the fuel i
njection pump will be affected if the pump
is replaced without prior consultation.
Replace the
fuel injection pump. Refer to Disassembly
and Assembly, “Fuel Injection Pump Remove and
Install”.
Check for active diagnostic codes.
Results:
•
OK – STOP.
i01798176
CID 1684 F M I 11 F uel Injection
Pump, Inte
rnal Sensor Fault
Conditions Which Generate This Code:
This code i
s generated by the fuel injection pump.
The problem is internal to the fuel injection pump.
There may be air in the fuel injection pump.
The voltag
e and/or resistance at the connectors for
the fuel injection pump are incorrect.
The ECM will log the diagnostic code. The diagnostic
code may be view
ed on the electronic service tool.
System Response:
The ECM will derate the engine power by 20% while
the diagnostic code is active.
Possible Pe rformance Effect:
The engine may
experience any of the following
conditions while the diagnostic code remains active:
•
Low power
•
Reduced engine speed
Troubleshooting:
Further troub
leshooting is required.
Test Step 1.
Check the tightness of all fuel line connections. Check
for air in the fuel injection pump. Refer to Operation
and Maintena
nce Manual, “Fuel System - Prime”.
Results:
•
OK – Proceed to Test Step 2.
Test Step 2.
Refer to Troubleshooting, “Fuel Injection Pump
Circuit - Tes
t”.
Check for active diagnostic codes.
Results:
•
OK – STOP.
i01798177
CID 1684 FMI 1
2 Fuel Injection
Pump, Device Failure
Conditions Which G enerate This Code:
This code is generated by the fuel injection pump.
The problem
is internal to the fuel injection pump.
The ECM will log the diagnostic code. The diagnostic
code may be v
iewed on the electronic service tool.