The Cummins ISM code 415 manual is a 2-page diagnostic PDF for the engine oil pressure low (critical) on the ISM CM570 (1999–2002) engine. It documents a critical low-oil-pressure condition read by the engine oil pressure sensor, which can shut the engine down, and it carries a red stop lamp.
Cummins ISM code 415 document details
| Brand | Cummins |
| Model coverage | ISM CM570 (1999–2002) |
| System / group | Engine oil pressure low (critical) — DTCs |
| DTC number | 415 |
| PID / SPN | P100 / 100 |
| FMI | 1/1 |
| Warning lamp | RED |
| Pages | 2 |
| File format | |
| Language | English |
Document table of contents
- Circuit description and component location
- Shop talk on mechanical causes
- Red-lamp shutdown behaviour
- Lubricating Oil Pressure Low symptom referral
Applicable truck models
This procedure applies to the ISM CM570 (1999–2002) engine and the shared CM570 fuel-system platform found in on-highway trucks. The same fault-code logic is carried across related CM570 engine families of that era. For engine identification and factory service references, see the manufacturer at the Cummins official website.
Who needs this Cummins ISM code 415 manual
The document locates the engine oil pressure sensor on the left side of the block, below and to the rear of the integrated fuel system module (IFSM). It explains that oil pressure too low for engine speed causes a derate, and if engine protection shutdown is enabled the engine stops 30 seconds after the red stop lamp starts flashing. Listed causes include a failing oil pump, a stuck high-pressure relief valve, a loose or plugged oil filter, and contaminated oil. The tree references the Lubricating Oil Pressure Low symptom tree.
This guide suits diesel technicians and workshop owners who face a red-lamp low-oil-pressure event and need to separate a real mechanical problem from a sensor or wiring fault. It reads as fault code 415 troubleshooting steps for the engine oil pressure low (critical), so the ECM circuit diagnosis stays ordered and evidence-based rather than a parts-swap guess, and it maps cleanly onto a scan-tool session on the CM570 engine platform.
The full PDF is available in the DiagTechPro manuals library, where a free account is required to download it.
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