Perkins 1104E Series Troubleshooting Manual page 153

RENR2696-01
Test Step 1. Check for Connector
Damage.
A. Turn the circuit breaker for the battery to the OFF
position.
B. Turn the keyswitch to the OFF position.
C. Disconnect the main power.
D. Thoroughly inspect the ECM connectors J1/P1 and
J20/P20. Inspect all of the other connectors. Refer
to the diagnostic functional test Troubleshooting,
"Inspecting Electrical Connectors" for details.
E. Perform a 45 N (10 lb) pull test on each of the
wires in the ECM connector that are associated
with the circuit.
F. Check the ECM connector (Allen head screw) for
the proper torque of 6.0 N·m (55 lb in).
G. Check the customer connector (Allen head
screw) for the proper torque of 2.25 ± 0.25 N·m
(20 ± 2 lb in).
H. Check the harness and the wiring for abrasion
and pinch points.
Expected Result:
The connectors and wiring should be free of the
following problems: damage, corrosion, abrasion,
and incorrect attachment.
Results:
•
OK – The connectors and the wiring are okay.
Proceed to test step 2.
•
Not OK – The connectors and/or wiring are not
okay.
Repair: Repair the connectors or wiring and/or
replace the connectors or wiring.
STOP.
Test Step 2. Check the Engine Oil Level
A. Check the engine oil level.
B. Ensure that the correct engine oil dipstick is
installed.
C. Check for external oil leaks.
Expected Result:
The engine oil should be at the correct level.
Results:
•
OK – The engine oil level is correct. Proceed to
test step 3.
•
Not OK – The engine oil level is not correct.
Repair: If necessary, add oil to the engine.
STOP.
Test Step 3. Use the Electronic Service
Tool in order to Check the Engine Oil
level.
A. Connect the electronic service tool to the service
tool connector.
B. Turn the keyswitch to the ON position. The engine
should be off.
C. Observe the "Engine Oil Level" reading on the
electronic service tool.
Expected Result:
The "Engine Oil Level" should read "OK".
Results:
•
OK – The "Engine Oil Level" does read "OK".
Repair: The switch signal is correct.
STOP.
•
Not OK – The "Engine Oil Level" does not read
"OK". The switch signal is not correct. Proceed to
test step 4.
Test Step 4. Short the Wires at the Low
Oil Level Switch.
A. Disconnect the low oil level switch.
B. Use a wire to short the wires for the "engine oil
level switch".
C. Turn the keyswitch to the ON position. The engine
should be off.
D. Observe the status of the "Engine Oil Level" on
the electronic service tool.
E. Remove the wire short.
F. Observe the status of the "Engine Oil Level" on
the electronic service tool.
G. Turn the keyswitch to the OFF position.
153
Troubleshooting Section