Cummins oil pressure sensor — Fault Code 415 Engine Protection

This Cummins oil pressure sensor guide covers Fault Code 415 (PID P100, SPN 100, FMI 1, SRT 00-057) on the M11 CELECT Plus. The 2-page document ties the oil pressure signal to the engine protection system and can light the engine-protection or red lamp.

Official document details

Brand Cummins
Model coverage M11 CELECT Plus (1995-98); N14 location noted
System / group Oil Pressure – Engine Protection
Fault code 415
PID / SPN P100 / SPN 100
FMI 1
Diagnostic lamp Engine protection or red
SRT 00-057
Pages 2
File size 0.2 MB
Format PDF
Language English
Source Cummins fault code reference (TruckFaultCodes.com, 2017)

Document table of contents

  • Circuit description
  • Component location
  • Shop talk diagnostic notes
  • Step-by-step troubleshooting
  • Fault verification and clearing codes

Cummins oil pressure sensor checks

The sensor lets the ECM monitor lubricating oil pressure: the ECM reads the voltage on the signal pin, converts it to a pressure value, and uses that value for the engine protection system. Component location differs by engine — on the M11 the sensor is on the block to the right of the ECM, and on the N14 it is near the pan rail on the fuel-pump side. Shop talk directs confirming sensor supply voltage of 4.5 to 5.25 VDC and verifying with the driver the engine speed at which the fault occurs, because running under load at too low an engine speed can drop oil pressure below the protection limits. The document applies to 98N14 or 98M11 calibrations only.

Applicable truck models

Coverage is the Cummins M11 CELECT Plus (1995-98), with N14 location notes for 98N14 and 98M11 calibrations. Confirm supply-voltage specs on the official Cummins website.

Who needs this oil pressure sensor manual

Technicians investigating engine-protection warnings, derates, or low oil pressure complaints on late M11 and N14 CELECT Plus trucks use this sheet.

The full PDF is available in the DiagTechPro manuals library; a free account is required to download.

Applies to these truck models

This is the manufacturer document shared across 2 model families. It applies to:

  • Cummins DTCs
  • Cummins M11 CELECT Plus (1995-98)
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