CM850 Electronic Control System – FAULT CODE 141 (Marine Applications)

Oil Pressure Sensor Circuit – Voltage Below Normal or Shorted to Low Source


Overview

CODE REASON EFFECT
Fault Code: 141
PID: P100
SPN: 100
FMI: 4/4
LAMP: Amber
SRT: 

Oil Pressure Sensor Circuit – Voltage Below Normal, or Shorted to Low Source. Low signal voltage detected at the engine oil pressure circuit.

None. No engine protection for circuit or sensor failure.

Oil Pressure Sensor Circuit
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Circuit Description

The engine oil pressure 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.

Component Location

The engine oil pressure sensor is located on the left side of the engine block. Refer to Procedure 100-002 in Section E.

Shop Talk

Possible causes of this fault code include:

  • Signal circuit open or shorted to ground in the engine harness or sensor
  • Supply line open or shorted to ground.

Refer to Troubleshooting Fault Code t05-141

Last Modified:  08-Jul-2010