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Engine Oil Pressure Low – Critical
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Overview
| CODE | REASON | EFFECT |
| Fault Code: 415 PID: P100 SPN: 100 FMI: 1 LAMP: Red SRT: |
Engine oil pressure low – critical. Engine oil pressure indicates oil pressure is below the low oil pressure engine protection limit. |
Progressive power and speed derate with increasing time after alert. If the engine protection shutdown feature is enabled, engine will shut down 30 seconds after the red lamp starts flashing. |
 Oil Pressure/Temperature Sensor Circuit
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Circuit Description
The engine oil pressure switch is used by the ECM to monitor the lubricating oil pressure. If the oil pressure drops below the engine protection limit, the switch will open and cause Fault Code 415 to log.
Component Location
The oil pressure sensor is located on the intake side of the engine, on the block, below the fuel filter. Refer to Procedure 100-002 for a detailed component location view.
Shop Talk
Possible causes of this fault code include:
- Incorrect oil level
- Failed wiring harness
- Failed oil pressure switch
- Short circuit to ground
- The fault will trigger if lubricating oil pressure drops below 41 kPa [6 psi] for 30 seconds. Engine Protection Shutdown will be activated after an additional 30 seconds if the feature is enabled in the ECM.
Refer to Troubleshooting Fault Code t05-415sw
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