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Oil Pressure Sensor Circuit
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Overview
CODE | REASON | EFFECT |
Fault Code: 141 PID: P100 SPN: 100 FMI: 4 LAMP: Yellow SRT: |
Low voltage detected at oil pressure signal pin. |
Default value used for oil pressure. No engine protection for oil pressure. |
![]() Oil Pressure Sensor Circuit
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Circuit Description
The oil pressure/temperature sensor is used by the electronic control module (ECM) to monitor the lubricating oil pressure. The ECM monitors the voltage on the signal pin and converts this to a pressure value. The oil pressure value is used by the ECM for the engine protection system.
Component Location
The oil pressure/temperature sensor is located on the engine block, below the exhaust manifold and near the oil filter housing.
Shop Talk
- If Fault Code 143 or 415 is not present, the problem is not related to the engine lubrication system.
- INSITE™ can be used to monitor the oil pressure signal voltage going into the ECM.
- Confirm that the correct oil pressure/temperature sensor part number is being used.
- If Fault Codes 141 and 238 are active, then begin troubleshooting Fault Code 238 first.
Refer to Troubleshooting Fault Code t05-141sn
Last Modified: 26-Oct-2010