CUMMINS FAULT CODE 386

ADVERTICEMENTS

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FAULT CODE 386

Sensor Supply 1 Circuit - Voltage Above Normal or Shorted to High Source

Overview


CODE

REASON

EFFECT

Fault Code: 386

Sensor Supply 1 Circuit - Voltage Above Normal or Shorted to High Source. High voltage

Loss of some sensor

PID:

detected at sensor supply 1 circuit.

functionality.

SPN: 1079



FMI: 3



LAMP: Amber



SRT:



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Sensor Supply 1 Circuit - Industrial Engines


Z

Sensor Supply 1 Circuit - Marine Engines


Z

Sensor Supply 1 Circuit - Power Generation Engin


Circuit Description

Sensor supply 1 of the engine control module (ECM) provides positive (+) 5-VDC for the engine oil rifle pressure 1 sensor on the engine harness. This 5-VDC supply also powers two original equipment manufacturer (OEM) devices. The two devices are the remote accelerator pedal or lever position sensor and the OEM pressure sensor.


Component Location


The sensor supply 1 is located in the ECM. The supply voltage is spliced off in the engine and OEM harness to each sensor it supports.


Shop Talk


High voltage on the sensor wire can be caused by an individual sensor supply wire in the harness shorted to battery voltage or a damaged ECM power supply.


Refer to Troubleshooting Fault Code t05-386.


Last Modified: 15-Jan-2013

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