Troubleshooting

Table 23
Troubleshooting Test Steps Values Results
1. Ground Level Shutdown Switch (If Equipped)
A. Ensure that the ground level shutdown switch has not been
activated.
Shutdown switch Result: The ground level shutdown switch has been
activated.
Repair: Deactivate the ground level shutdown switch.
Result: The ground level shutdown switch has not been
activated.
Proceed to Test Step 2.
2. Diagnostic Codes
A. Connect the electronic service tool to the diagnostic
connector.
B. Crank the engine for 30 seconds.
C. Turn the keyswitch to the ON position.
D. Use the electronic service tool to check for active diagnostic
codes.
Diagnostic codes Result: There are active diagnostic codes.
Repair: Troubleshoot all active diagnostic codes before
continuing with this procedure. Refer to Troubleshooting,
“Diagnostic Trouble Codes”.
Result: There are no active diagnostic codes.
Proceed to Test Step 3.
3. Visible Faults
A. Visually inspect the engine for the following faults:
·Missing components
·Damaged components
·Damaged electrical cables or loose electrical cables
·Oil leaks
·Fuel leaks
B. Check for the correct levels of fuel, oil, and coolant.
C. If the ambient temperature is below 0 °C (32 °F), make
sure that the correct specification of engine oil is used.
D. Check that the battery voltage is correct.
E. Use the electronic service tool to check the average crank-
ing speed of the engine. If the cranking speed is less than 150
rpm, investigate the cause of the low cranking speed.
F. Make sure that all fuel filters are correctly installed.
G. Drain any water from the primary fuel filter/water separator.
Visible faults Result: Faults found during engine inspection.
Repair: Make any repairs, as necessary.
Attempt to start the engine. If the engine will not start, pro-
ceed to Test Step 4.
Result: No faults found.
Proceed to Test Step 4.
(continued)
UENR0612-07 59
Symptom Troubleshooting
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