Perkins 1106D Troubleshooting Manual page 155

SENR9982
Test Step 1. Inspect the Electrical
Connectors and the Harness
Illustration 55
Typical example of the speed, crank and the fuel/camshaft speed sensors
(1) Voltage Supply (8V)
A. Turn the keyswitch to the OFF position.
B. Thoroughly inspect the P2 connector and
the suspect sensor connections. Refer to
Troubleshooting, "Electrical Connectors - Inspect".
C. Perform a 45 N (10 lb) pull test on each of
the wires in the suspect sensor connector and
the sensor connections at the ECM. The wire
connectors are shown in illustration 51.
D. Check the screw for the ECM connector for the
correct torque of 5.0 N·m (44 lb in).
E. Check the harness for abrasion and pinch points
from the suspect sensor to the ECM.
F. Check that the suspect sensor is installed
correctly. Check that the suspect sensor is fully
seated into the engine. Check that the sensor is
securely latched.
Expected Result:
The electrical connectors and the cables are correctly
installed.
Results:
•
OK – The harness is OK. Proceed to Test Step 2.
•
Not OK
Repair: Repair the faulty connectors or the
harness and/or replace the faulty connectors or the
harness. Ensure that all of the seals are correctly in
place and ensure that the connectors are correctly
coupled.
If a sensor must be replaced or the sensor must be
reinstalled, complete all of the following tasks:
(2) Signal (Sig)
•
•
•
•
•
Verify that the repair has eliminated the fault.
STOP.
Test Step 2. Check for Active Diagnostic
Codes and Recently Logged Diagnostic
Codes
A. Turn the keyswitch to the OFF position.
B. Connect the Perkins Electronic Service Tool (EST)
C. Turn the keyswitch to the ON position. If the
D. Use the Perkins EST in order to monitor active
Expected Result:
One or more of the following diagnostic codes are
active or recently logged:
Lubricate the O ring with clean engine lubricating
oil.
Ensure that the plug for the sensor has a seal
inside the connector body. If a seal is damaged
or missing, replace the seal.
Ensure that the sensor is fully seated into the
engine before tightening the bracket bolt.
Ensure that the connector is latched.
Ensure that the harness is correctly secured,
and ensure that the harness is attached to the
harness clip.
to the diagnostic connector.
engine will start, then run the engine.
diagnostic codes or recently logged diagnostic
codes.
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Troubleshooting Section
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