Perkins 1106D Troubleshooting Manual page 143

KENR6201-01
Verify that the repair eliminated the fault.
STOP.
•
Not OK – The fuel rail pump solenoid is faulty.
Repair: Temporarily connect a new fuel rail pump
to the harness, but do not install the fuel rail pump
to the engine.
Reconnect the P2 to the ECM. Tighten the screw
for the ECM connector to a torque of 5.0 N·m
(44 lb in).
Use the electronic service tool in order to perform
the fuel rail pump solenoid test.
Verify that the repair eliminated the fault.
If the diagnostic code has been cleared, install
the new fuel rail pump to the engine. Refer to
Disassembly and Assembly, "Fuel Injection Pump
- Install".
STOP.
Test Step 5. Check the Fuel Rail Pump
Solenoid for a Short Circuit
A. Turn the keyswitch to the OFF position.
B. Disconnect the connector from the fuel rail pump
solenoid.
C. Turn the keyswitch to the ON position.
D. Use the electronic service tool in order to perform
the fuel rail pump solenoid test.
Expected Result:
A Current Below Normal diagnostic code is displayed.
The Current Above Normal diagnostic code is not
displayed.
Results:
• OK – A Current Below Normal diagnostic code is
displayed. The harness has no shorts to supply or
ground. The fuel rail pump solenoid is faulty.
Repair: Temporarily connect a new fuel rail pump
to the harness, but do not install the fuel rail pump
to the engine.
Reconnect P2 to the ECM. Tighten the screw for
the ECM connector to a torque of 5.0 N·m (44 lb in).
Use the electronic service tool in order to clear all
logged diagnostic codes.
Use the electronic service tool in order to perform
the fuel rail pump solenoid test.
This document is printed from SPI². Not for RESALE
Verify that the repair eliminates the fault.
If the diagnostic code has been cleared, then install
the new fuel rail pump to the engine. Refer to
Disassembly and Assembly, "Fuel injection Pump
- Remove" and Disassembly and Assembly, "Fuel
injection Pump - Install".
STOP.
•
Not OK – The harness has a short circuit or the
ECM has a short circuit. Proceed to Test Step 6.
Test Step 6. Check the harness for the
Fuel Rail Pump Solenoid for a Short
Circuit
A. Turn the keyswitch to the OFF position.
B. Disconnect the P532 connector from the fuel rail
pump solenoid.
C. Disconnect the P2 connector from the ECM.
D. Measure the resistance between P2:26 and P2:25.
E. Measure the resistance between P2:25 and
voltage +.
F. Measure the resistance between P2:25 and the
voltage (-).
G. Measure the resistance between P2:26 and
voltage +.
H. Measure the resistance between P2:26 and
voltage (-).
Expected Result:
The resistance is greater than 20,000 Ohms.
Results:
•
OK – The harness has no short circuit to supply
or ground. The ECM is suspect. Proceed to Test
Step 7.
•
Not OK – The harness has a short circuit.
Repair: Repair the harness and connectors or
replace the faulty harness and connectors.
Connect the P532 connector to the fuel rail pump
solenoid.
Connect the P2 connector to the ECM.
Turn the keyswitch to the ON position.
Use the electronic service tool in order to perform
the fuel rail pump solenoid test.
143
Troubleshooting Section