This Cummins fault 1963 document is a troubleshooting manual for Fault Code 1963 on CM2250 aftertreatment fuel shutoff valve systems. It explains the code reason, operating effect, diagnostic conditions, guided checks, repair validation, and related Cummins procedures used with INSITE™ electronic service tool.
Official Cummins fault 1963 document details
| Brand | Cummins |
| Model coverage | ISX11.9 CM2250 / ISX15 CM2250 |
| System/Group | Aftertreatment Fuel Shutoff Valve 1 Circuit / DTCs |
| Publication no. | Not specified; associated bulletin numbers 4022250 and 2883445 are listed |
| Year/Revision | Last Modified: 14-Dec-2010 |
| Pages | 8 |
| File size | 0.2 MB |
| Format | |
| Language | English |
Document table of contents
- Overview
- Circuit Description
- FAULT CODE 1963 – Aftertreatment Fuel Shutoff Valve 1 – Mechanical System Not Responding or Out of Adjustment
- Component Location
- Conditions for Running the Diagnostics
- Conditions for Setting the Fault Codes
- Action Taken When the Fault Code is Active
- Conditions for Clearing the Fault Code
- Shop Talk
- Associated Procedures
- Troubleshooting Steps
- Guided Step 1 – Check the fault codes.
- Guided Step 2 – Check the aftertreatment fuel shutoff valve.
- Guided Step 3 – Check ECM calibration and clear fault codes.
Applicable truck models
This file applies to Cummins ISX11.9 CM2250 and ISX15 CM2250 engines where Fault Code 1963 is used for the aftertreatment fuel shutoff valve 1 mechanical system. The extract describes the aftertreatment fuel injection system, including the aftertreatment fuel injector, aftertreatment fuel shutoff valve, purge air actuator, pressure sensor, fuel supply line, and active regeneration of the aftertreatment diesel particulate filter. The listed associated procedures include Fuel System Diagnostics, Fuel Filter (Spin-On Type), Aftertreatment Fuel Shutoff Manifold, and ECM Calibration Code for ISX15 CM2250 bulletin number 4022250 and ISX11.9 CM2250 bulletin number 2883445. For manufacturer information, visit Cummins official website.
Who needs this Cummins fault 1963 manual
This Cummins fault 1963 manual is intended for diesel mechanics, fleet technicians, and workshop owners diagnosing an amber CHECK ENGINE lamp, disabled active regeneration, or reduced torque related to a stuck closed aftertreatment fuel shutoff valve. It is useful when checking active Fault Code 1923, 1924, 1926, 1927, 1928, 559, or 2372 before testing fuel filter restriction and shutoff valve flow.
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