Table 131
Troubleshooting Test Steps
Values Results
1. Low Engine Oil Level
A. Check the engine oil level. Refer to the Operation and
Maintenance Manual, “Engine Oil Level - Check”.
Engine oil level Result: The engine oil level is low.
Repair: Add engine oil, as necessary.
If engine oil consumption is considered excessive, refer to
Troubleshooting, “Oil Consumption Is Excessive”.
Proceed to Test Step 2.
2. Electrical Connections or Wiring
A. Inspect the electrical connectors and all of the wiring for
the switch. Refer to Troubleshooting, “Electrical Connectors -
Inspect” and refer to the electrical Schematic.
Electrical connec-
tors and wiring
Result: There is a fault in an electrical connection or the
wiring.
Repair: Repair or replace the faulty item.
Result: The electrical connections and wiring are OK.
Proceed to Test Step 3.
3. Test the Oil Level Switch
Note: The engine oil level switch must be closed in order for
the engine to operate. The switch is normally open. The
switch must be submerged in fluid in order to become closed.
A. Disconnect the switch and remove the switch.
B. Connect an ohmmeter to the switch terminals and meas-
ure the resistance. The correct resistance for the normally
open switch is greater than 20,000 Ohms.
C. Continue to monitor the ohmmeter and submerge the
switch in water. The correct resistance for the closed switch
is less than five Ohms.
Oil level switch Result: The correct results are not obtained or if the switch
does not close.
Repair: Replace the switch.
Result: The correct results are obtained and the switch
closes correctly.
Contact the Dealer Solutions Network (DSN).
i07605883
Oil Pressure Is Low
NOTICE
Do not operate the engine with low oil pressure. En-
gine damage will result. If measured oil pressure is
low, discontinue engine operation until the fault is
corrected.
Note: Severe slopes can cause low oil pressure. If
the machine is operated on severe slopes, the oil
level in the engine crankcase must be at the “FULL”
mark on the dipstick. Refer to the Operation and
Maintenance Manual for details.
The Electronic Control Module (ECM) monitors the
engine oil pressure. The following events are
associated with low engine oil pressure:
UENR4469-36 243
Symptom Troubleshooting
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