Cummins ISM code 585 is the DiagTechPro reference page for this Cummins diagnostic fault code 585 document, a 5-page PDF sourced from TruckFaultCodes.com (Copyright 2017) covering the lamp: amber starter relay driver circuit – voltage below normal, or shorted to low source isx condition. The starter lockout relay is controlled by the electronic control module (ECM) through the starter lockout relay signal circuit. The relay prevents the starter from being engaged when the engine is running. When the condition is detected the ECM logs the fault and illuminates the amber warning lamp.
Cummins ISM code 585 document details
| Brand | Cummins |
|---|---|
| Model coverage | and ISM – Starter Relay Circuit (ISM CM871, 2007-09) |
| System / Group | ISM CM871 (2007-09) / DTCs |
| Fault identifier | Code 585 (PID S039, SPN 677, FMI 4/4) |
| Warning lamp | Amber |
| Source | TruckFaultCodes.com |
| Year / Revision | Copyright 2017 |
| Pages | 5 |
| File size | 0.2 MB |
| Format | |
| Language | English |
Document table of contents
- Circuit Description
- Component Location
- Shop Talk
- Troubleshooting Steps
- Repair verification and clearing fault codes
Applicable truck models
This document applies to Cummins and ISM – Starter Relay Circuit electronic engines in the ISM CM871 (2007-09) family used in on-highway and vocational trucks. The starter lockout relay is installed by the vehicle OEM. Refer to the OEM troubleshooting and repair manual for exact location. Verify the electronic control module (ECM) calibration is correct. If necessary, recalibrate the ECM. The troubleshooting section walks through connector and pin inspection, circuit measurements and step-by-step checks, then confirms code 585 is inactive before all fault codes are cleared. Verify engine calibration and coverage against the official Cummins engine support site before ordering parts.
Who needs this Cummins ISM code 585 manual
Any mechanic or workshop owner diagnosing ISM code 585 needs this PDF to follow the factory diagnostic steps in the correct order and avoid replacing parts that are still good. The ECM monitors the voltage level on this circuit.
Related manuals library
The full PDF is available in the DiagTechPro manuals library; a free account is required to download.
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