Cummins ISM Code 359 is the official Cummins fault code troubleshooting PDF that documents the icon™ idle control system on ISM CM570 (1999-02) engines. This 3-page reference from the Cummins service literature explains the circuit, the likely causes behind the yellow warning lamp, and the step-by-step checks a technician follows to confirm the repair.
Official document details
| Brand | Cummins |
|---|---|
| Model coverage | ISM CM570, ISX CM570 and Signature CM570 (1999-02) |
| System / Group | Icon™ Idle Control System (DTCs) |
| Fault code | Code 359 · PID S124 · SPN 613 · FMI 11/31 |
| Warning lamp | Yellow |
| Year / Revision | Copyright 2017 |
| Pages | 3 |
| File size | 0.2 MB |
| Format | |
| Language | English |
Document table of contents
- Circuit description
- Component location
- Shop talk – possible causes
- Troubleshooting steps
- Fault code verification and clearing
Cummins ISM Code 359 troubleshooting summary
The starter relay/interlock circuit controls and monitors both the starter relay coil and the ICON™ interlocks. The starter relay is used by the ICON™ feature to perform automatic starts of the engine. The location of the starter relay, parking brake switch, neutral position switch, and hood tilt switch vary between OEMs. The manual walks through 7 labelled troubleshooting steps that inspect connectors and pins, measure circuit resistance, and verify the fault code is inactive after the repair.
This fault code is set if 2 consecutive attempts at starting fail. If a
start is commanded by the ECM and neither 200 rpm is reached
within 2 seconds nor 450 rpm is reached within 14 seconds, the
start failed.
Applicable truck models
This procedure applies to Cummins ISM CM570, ISX CM570 and Signature CM570 engines built in the 1999-02 range, as used in Class 8 highway trucks. Always confirm the exact engine dataplate before servicing. Full engine specifications and dealer support are available on the Cummins official website.
Who needs this Cummins ISM Code 359 manual
Heavy-duty diesel technicians, fleet service managers and independent workshop owners diagnosing a Code 359 on the icon™ idle control system rely on this document to follow the manufacturer procedure instead of guessing at parts. Because Code 359 shares its troubleshooting logic with the ISX CM570 and Signature CM570 platforms, a single PDF supports several Cummins engine families in the same workshop.
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