Perkins NJ Series Troubleshooting Manual page 150

150
Troubleshooting Section
• Not OK – A wire has been pulled from a terminal
or a terminal has been pulled from the connector.
Repair: Use the CH11155 Crimp Tool to replace
the terminal. Replace damaged connectors, as
required.
Use the electronic service tool in order to clear all
logged diagnostic codes and then verify that the
repair eliminates the fault.
STOP.
Test Step 5. Check Individual Pin
Retention into the Socket
Illustration 52
Diagram for testing pin retention
A. Verify that the sockets provide good retention for
the pins. Insert a new pin into each socket one
at a time in order to check for a good grip on the
pin by the socket.
Expected Result:
The sockets provide good retention for the new pin.
Results:
•
OK – The terminals are OK. Proceed to Test Step
6.
• Not OK – Terminals are damaged.
Repair: Use the CH11155 Crimp Tool to replace
the damaged terminals. Verify that the repair
eliminates the problem.
Use the electronic service tool in order to clear all
logged diagnostic codes and then verify that the
repair eliminates the fault.
STOP.
Test Step 6. Check the Locking
Mechanism of the Connectors
A. Ensure that the connectors lock correctly. After
locking the connectors, ensure that the two halves
cannot be pulled apart.
B. Verify that the latch tab of the connector is
correctly latched. Also verify that the latch tab of
the connector returns to the locked position.
Expected Result:
The connector is securely locked. The connector and
the locking mechanism is not cracked or broken.
Results:
• OK – The connectors are in good repair. Proceed
to Test Step 7.
•
Not OK – The connector's locking mechanism is
damaged or missing.
Repair: Repair the connector or replace the
connector, as required.
Use the electronic service tool in order to clear all
logged diagnostic codes and then verify that the
repair eliminates the fault.
g01237435
STOP.
Test Step 7. Check the Screws on the
ECM Connectors (64 way)
Visually inspect the screws for the ECM connectors.
Ensure that the threads on each screw are not
damaged.
A. Connect the ECM connectors.
a. Use a 7 mm Torx screw in order to retain each
of the ECM connectors.
b. Tighten the two Torx screws for the ECM
connector to the correct torque of 5.0 ± 1.0 N·m
(44 ± 9 lb in).
Note: If the threaded insert in the ECM is damaged,
the ECM must be replaced. Refer to Disassembly
and Assembly, "Electronic Control Module - Remove
and Install".
Expected Result:
The ECM connectors are secure and the Torx screws
are correctly torqued.
SENR9982-01