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FAULT CODE 227

Sensor Supply 2 Circuit - Voltage Above Normal or Shorted to High Source

Overview


CODE

REASON

EFFECT

Fault Code: 227

Sensor Supply 2 Circuit - Voltage Above Normal or Shorted to High Source. High voltage

Loss of some sensor

PID:

detected at sensor supply 2 circuit.

functionality.

SPN: 3510



FMI: 3/3



LAMP: Amber



SRT:



Sensor Supply 2 Circuit - Industrial Engines


Sensor Supply 2 Circuit - Power Generation Engin


Sensor Supply 2 Circuit - Marine Engines


Circuit Description

The sensor supply 2 circuit of the engine control module (ECM) provides 5-VDC for the engine camshaft speed/position sensor, intake manifold 1 pressure sensor, fuel delivery pressure sensor, barometric pressure sensor, and injector metering rail 1 pressure sensor.


Component Location


Sensor supply voltage 2 is located inside the ECM. Use the following procedure for a detailed component location view. Refer to Procedure 100-002 in Section E.


Shop Talk


High voltage on the 5-VDC SUPPLY wire can be caused by a signal shorted to battery voltage in the engine harness or connectors, or a damaged ECM. Refer to Troubleshooting Fault Code t05-227.

Last Modified: 28-Nov-2012

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