Perkins 1106D Troubleshooting Manual page 134

134
Troubleshooting Section
•
Not OK – The sensor wiring has a short circuit.
Repair: Repair the faulty connectors or replace
the faulty connectors. Repair the faulty harness or
replace the faulty harness. Reconnect all sensor
and ECM connectors. Ensure that all of the seals
are correctly in place. Ensure that all connectors
are correctly coupled.
Verify that the repair eliminates the fault.
STOP.
Test Step 7. Check if a Replacement
Sensor Eliminates the Fault
A. Turn the keyswitch to the OFF position.
B. Disconnect the suspect sensor and remove the
suspect sensor from the engine.
C. If a sensor must be replaced or a sensor must be
reinstalled, complete all of the following tasks:
•
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.
D. Turn the keyswitch to the ON position.
E. Start the engine.
F. Use the electronic service tool in order to monitor
the diagnostic codes.
G. Verify that the replacement sensor has eliminated
the fault.
Expected Result:
The fault has been rectified.
Results:
•
OK – If the fault is eliminated with the test sensor,
reconnect the suspect sensor. If the fault returns
with the suspect sensor, replace the suspect
sensor.
This document is printed from SPI². Not for RESALE
Repair: Verify that the repair eliminates the fault.
STOP.
•
Not OK – The fault still exists. Proceed to Test
Step 8.
Test Step 8. Check if the Replacement of
the ECM Eliminates the Fault
A. Make sure that the latest flash file for the
application is installed in the ECM. Refer to
Troubleshooting, "Flash Programming".
B. Contact Perkins Global Technical Support.
Note: This consultation can greatly reduce the repair
time.
C. If Perkins Global Technical Support recommends
the use of a test ECM, install a test ECM. Refer to
Troubleshooting, "Replacing the ECM".
D. Use the electronic service tool to recheck the
system for active diagnostic codes.
E. If the fault is resolved with the test ECM, reconnect
the suspect ECM.
F. If the fault returns with the suspect ECM, replace
the ECM.
G. Use the electronic service tool in order to clear all
logged diagnostic codes and then verify that the
repair eliminates the fault.
Expected Result:
The fault is eliminated.
Results:
•
OK
– STOP.
•
Not OK – The fault was not resolved with a test
ECM.
Repair: Repeat this diagnostic process. If the fault
persists, the fault may be a damaged timing ring.
Check the timing ring and/or replace the timing
ring.
Verify that the repair eliminates the fault.
STOP.
KENR6201-01