Perkins 1104E Series Troubleshooting Manual page 200

200
Troubleshooting Section
Illustration 112
MIC pin locations for the mode selector switch
A. Turn the keyswitch OFF.
B. Thoroughly inspect J1/P1 ECM connector, and the
J20/P20 MIC. Refer to Troubleshooting, "Electrical
Connectors - Inspect" for details.
C. Perform a 45 N (10 lb) pull test on each of
the wires in the P1/J1 ECM connector and the
P20/J20 MIC that are associated with the Mode
Selector Switch: Refer to illustration 111 and 112.
D. Check the J1/P1 ECM connector (Allen head
screw) for the proper torque of 2.25 ± 0.25 N·m
(20 ± 2 lb in).
Check the J20/P20 Machine Interface Connector
(MIC) for the proper torque of 6.0 N·m (55 lb in).
E. Check the harness and wiring for abrasions and
for pinch points from the battery to the ECM.
Results:
•
OK – Proceed to Test Step 2.
•
Not OK
Repair: Repair the connectors or wiring and/or
replace the connectors or wiring. Ensure that all of
the seals are properly in place and ensure that the
connectors are completely coupled.
Verify that the repair eliminates the problem.
STOP.
•
– If the problem has not been eliminated proceed
to Test Step 2.
Test Step 2. Check the Status of the Mode
Selector Switch
A. Turn the keyswitch to the OFF position.
B. Connect the electronic service tool to the
diagnostic connector.
C. Turn the keyswitch to the ON position.
D. Monitor the status screen on the electronic service
tool. Cycle the mode switch to the ON position
and to the OFF position.
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