The ECM detects low engine oil pressure under the following conditions:
360-1
- The engine has been running for at least ten seconds.
- There are no active diagnostic codes for the oil pressure sensor or for the atmospheric pressure sensor.
- Engine oil pressure is in the "LEVEL 1" area in Illustration 1 for eight seconds.
Note: The warning will be cancelled if the oil pressure rises 21 kPa (3 psi) above the set point for 20 seconds.
360-2
- The engine has been running for at least ten seconds.
- There are no active diagnostic codes for the oil pressure sensor or for the atmospheric pressure sensor.
- Engine oil pressure is in the "LEVEL 2" area in Illustration 2 for eight seconds.
Note: The derate will be cancelled if the oil pressure rises 21 kPa (3 psi) above the set point for 20 seconds.
360-3
- The engine has been running for at least ten seconds.
- There are no active diagnostic codes for the oil pressure sensor or for the atmospheric pressure sensor.
- Engine oil pressure is in the "LEVEL 3" area in Illustration 3 for four seconds.
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| Illustration 1 | g01269377 |
Level 1 engine oil pressure versus engine speed | |
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| Illustration 2 | g01269382 |
Level 2 engine oil pressure versus engine speed | |
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| Illustration 3 | g01269384 |
Level 3 engine oil pressure versus engine speed | |
System Response:
360-1
The warning lamp will flash while the warning is active.
The Electronic Control Module (ECM) will generate a 46 flash code that will be displayed via the diagnostic lamp.
The ECM will generate a E360-1 event code.
The ECM will generate a SPN 100-FMI 17 event code on the J1939 data link. The event code may be displayed on a receiving device on the J1939 data link.
360-2
The warning lamp will flash while the derate is active.
The ECM will generate a 46 flash code that will be displayed via the diagnostic lamp.
The ECM will generate a E360-2 event code.
The electronic service tool will display "Engine Derate" in the first "Engine Status" box on any status screen on the electronic service tool.
The ECM will generate a SPN 100-FMI 18 event code on the J1939 data link. The event code may be displayed on a receiving device on the J1939 data link.
360-3
The warning lamp will flash.
The ECM will generate a 46 flash code that will be displayed via the diagnostic lamp.
The ECM will generate a E360-3 event code.
The ECM will generate a SPN 100-FMI 01 event code on the J1939 data link. The event code may be displayed on a receiving device on the J1939 data link.
360-1
Engine operation is not affected.
360-2
The ECM will derate power by 17.0 percent per second up to a maximum of 100 percent while the derate is active.
Note: The derate of the engine will only occur if the "Enable Derate" customer programmable parameter has been enabled.
360-3
The engine will shut down.
Note: The shutdown of the engine will only occur if the "Enable Shutdown" customer programmable parameter has been enabled.
Test Step 1.
Refer to Troubleshooting, "Low Engine Oil Pressure".
Results:
- OK - STOP