Cummins fault code 435 is the Cummins ISM CM871 (2007-09) diagnostic reference for Engine Oil Rifle Pressure – Data Erratic, Intermittent, or Incorrect, reported as PID P100, SPN 100, FMI 2/2 with an Amber lamp. This 5-page workshop PDF covers the Engine Oil Pressure Circuit (ISX and ISM), giving the fault description, shop-talk notes, component location and the step-by-step troubleshooting tree. It is compiled from the TruckFaultCodes.com fault-code library (Copyright © 2017).
Official document details — Cummins fault code
| Brand | Cummins |
| Model coverage | ISM and ISX CM871 (2007-09) engines |
| System / Group | Engine Oil Pressure Circuit (ISX and ISM) / DTCs |
| Fault identifiers | PID P100, SPN 100, FMI 2/2, Amber lamp |
| Source | TruckFaultCodes.com fault-code library (© 2017) |
| Pages | 5 |
| File size | 0.18 MB |
| Format | |
| Language | English |
Document table of contents
- Fault code header (PID, SPN, FMI, lamp)
- Description
- Shop Talk
- Component Location
- Troubleshooting Steps
Reading Cummins fault code 435
The ECM supplies 5 volts to the engine oil pressure sensor and a ground on the sensor return circuit; the sensor signal voltage changes with pressure in the oil rifle, and at key-on the reading is compared against the intake manifold, exhaust gas and engine air pressure sensors.
The Cummins Shop Talk section advises confirming the ECM calibration is correct and recalibrating if necessary. Documented possible causes include:
- a stuck in-range engine oil pressure sensor reading
- high resistance in the sensor signal or return lines
Component location manual information
The engine oil pressure sensor is mounted on the left side of the engine block.
Applicable truck models
This document applies to Cummins ISM CM871 (2007-09) engines, and the same circuit description is shared with the ISX CM871 platform where noted in the extract. These engines power many Class 8 highway tractors and vocational trucks built by North American OEMs. Confirm the exact ECM calibration and OEM wiring against the manufacturer records; full engine support is published by Cummins official engine support.
Who needs this Cummins fault code 435 manual
Fleet technicians, independent diesel mechanics and workshop owners diagnosing an active engine oil rifle pressure condition will use this sheet to follow the correct troubleshooting order instead of replacing parts on guesswork.
The full PDF is available in the DiagTechPro manuals library; a free account is required to download it.
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