Cid 1684 Fmi 05 Fuel Injection Pump, Invalid Pulse Width; Cid 1684 Fmi 07 Fuel Injection Pump, Mechanical Fault - Perkins 1104E Series Troubleshooting Manual

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Troubleshooting Section
The fuel injection pump detects one of the following
conditions while the engine is running:
•
Supply voltage below normal
•
Intermittent signal
The ECM will log the diagnostic code. The diagnostic
code may be viewed on the electronic service tool.
System Response:
Possible Performance Effect:
The diagnostic code is logged, but there will be no
other system response.
•
There is no obvious effect on engine performance.
Troubleshooting:
Further troubleshooting is required.
Perform the following diagnostic procedure: "Fuel
Injection Pump Circuit - Test"
Results:
•
OK – STOP.
CID 1684 FMI 05 Fuel Injection
Pump, Invalid Pulse Width
Conditions Which Generate This Code:
The Electronic Control Module (ECM) detects the
following improper response from the fuel injection
pump.
•
Invalid "PWM" signal from the fuel injection pump
This invalid "PWM" is likely to be caused by a fault in
the CAN Data Link in either the ECM or in the fuel
injection pump.
The ECM will log the diagnostic code. The diagnostic
code may be viewed on the electronic service tool.
The ECM will cause the fuel injection pump to stop
injecting fuel. The ECM will then cause the engine to
shut down while the diagnostic code is active.
Troubleshooting:
A. Connect a test ECM in order to determine if
the problem is in the original ECM or in the fuel
injection pump.
Note: The parameters of the test ECM must match
the parameters 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 suspect ECM.
B. If the ECM is OK, contact the Perkins Technical
Support Centre in order to change the fuel
injection pump. The warranty of the fuel injection
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".
C. Check for active diagnostic codes.
Results:
•
OK – STOP.
CID 1684 FMI 07 Fuel Injection
i01798171
Pump, Mechanical Fault
Conditions Which Generate This Code:
This code is generated by the fuel injection pump.
The ECM will log the diagnostic code. The diagnostic
code may be viewed on the electronic service tool.
System Response:
The ECM will cause the fuel injection pump to stop
injecting fuel. The ECM will then cause the engine to
shut down while the diagnostic code is active.
Possible Performance Effect:
The engine will shut down.
Troubleshooting:
Refer to Troubleshooting, "Fuel Injection Pump
Circuit - Test".
Check for active diagnostic codes.
RENR2696-01
i01798172