fault code 1924 DTCs is the Cummins Aftertreatment Fuel Shutoff Valve 1 Circuit – Voltage Below Normal or Shorted to Low Source document for the ISX11.9 CM2250 (2010-12) engine platform, a 14-page PDF that reproduces the official fault code write-up read with Cummins INSITE. The aftertreatment fuel shutoff valve disables the fuel supply to the aftertreatment system and sits in the aftertreatment shutoff valve assembly, driven by a pulse-width-modulated signal from the ECM.
Official document details
| Brand | Cummins |
| Model coverage | Cummins ISX11.9 CM2250 and ISX15 CM2250 |
| System / group | ISX11.9 CM2250 (2010-12) / DTCs |
| Fault code | 1924 — PID S334, SPN 3482, FMI 4/4 |
| Warning lamp | Amber |
| Publication reference | Cummins troubleshooting bulletin 2883445; procedures 011-052 and 019-031 |
| Pages | 14 |
| File size | 0.2 MB |
| Format | |
| Language | English |
What fault code 1924 DTCs means
It sets when the fuel shutoff valve PWM signal is detected at 0 VDC while the PWM output is turned off. Active aftertreatment diesel particulate filter regeneration is disabled, and engine torque is reduced after extended operation. The document walks a technician through the summary and the guided troubleshooting steps needed to confirm and clear the code.
Document table of contents
- Overview and circuit description
- Component location
- Conditions for running the diagnostics
- Conditions for setting the fault code
- Action taken when the fault code is active
- Conditions for clearing the fault code
- Shop Talk and possible causes
- Associated procedures and guided troubleshooting steps
Applicable truck models
This troubleshooting document covers Cummins ISX11.9 CM2250 and ISX15 CM2250 engines in Class 6 to 8 trucks. It is filed under the ISX11.9 CM2250 (2010-12) / DTCs group and also applies to ISX12 CM2250 installations, so confirm the engine dataplate before ordering parts. Cross-reference the calibration revision with Cummins official engine support before clearing the code.
Who needs this fault code 1924 DTCs manual
Heavy-duty diesel technicians, fleet maintenance teams and workshop owners diagnosing a low-side aftertreatment fuel shutoff valve circuit use this reference to read SPN 3482 / FMI 4/4 correctly and to follow the guided steps in INSITE. The possible causes it lists include:
- an open return circuit in the harness, connectors or shutoff valve
- a short circuit to ground in the harness, connectors or shutoff valve
- a shorted aftertreatment fuel shutoff valve
The full 14-page PDF for aftertreatment fuel shutoff valve fault code 1924 is available in the DiagTechPro manuals library; a free account is required to download.
Related manuals library
Sản phẩm liên quan cho hãng này
Cùng brand theo taxonomy hiện có trong catalog WooCommerce.
Cummins Calterm Version 5.16 – Advanced ECM Control and Precision Tuning for Cummins Engines
Cummins INSITE 9.3 – The Essential Diagnostic Tool for Cummins Engines
Cummins InCal CE – The Calibration and Configuration Tool for Cummins Engines
