The Cummins ISM code 1932 service document is a 6-page PDF fault-code sheet that covers the Aftertreatment Fuel Injection System fault (code 1932) on Cummins ISM CM871 engines. It sets out the SPN, FMI and warning-lamp data, a plain-language description of the aftertreatment fuel injector system, and the step-by-step checks a technician follows to confirm, repair and clear the fault.
Official document details
| Brand | Cummins |
| Model coverage | ISM CM871 (2007-09) / DTCs; ISX CM871 (2007-09) / DTCs |
| System / group | ISM CM871 (2007-09) / DTCs |
| Fault code | 1932 (PID SPN: 3556, SPN 3556, FMI 2) |
| Warning lamp | Amber |
| Source | TruckFaultCodes reference, Copyright © 2017 |
| Pages | 6 |
| File size | 0.4 MB |
| Format | |
| Language | English |
Document table of contents
- Description
- Component Location
- Troubleshooting Steps
Applicable truck models
This fault-code sheet applies to Cummins ISM CM871 (2007-09) engines and, where noted in the document, the related ISX CM871 platform used in on-highway trucks fitted with the aftertreatment fuel injector system. Verify that the ECM calibration matches the engine before starting diagnosis. Current engine specifications and service policy are published on the Cummins official website.
Cummins ISM code 1932 troubleshooting steps
This fault code checks for system errors in the aftertreatment fuel injection system. This diagnostic can detect fuel leaks in the system, as well as a damaged aftertreatment fuel injector, aftertreatment fuel shutoff valve, and aftertreatment fuel drain valve. The troubleshooting routine walks through key-on diagnostic-tool checks, inspection of the aftertreatment fuel injector system, and verifying that the fault goes inactive after the repair. The sheet reports fault code 1932 with SPN 3556, FMI 2 and an amber lamp so the technician can confirm the right diagnostic tree.
Who needs this Cummins ISM code 1932 manual
Heavy-duty truck technicians and workshop owners diagnosing the aftertreatment fuel injector system on Cummins ISM CM871 engines need this reference. It documents the fault code 1932 conditions, likely causes and the checks required to close the repair correctly the first time. Technicians can cross-reference the SPN and FMI values with the engine diagnostic tool to confirm the active fault before ordering parts.
The full PDF is available in the DiagTechPro manuals library — a free account is required to download.
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