The code 241 DTCs troubleshooting manual is the official Cummins procedure for diagnosing Wheel-Based Vehicle Speed – Data Erratic, Intermittent, or Incorrect. The vehicle speed sensor senses the speed of the tailshaft gear on the vehicle’s transmission. This speed signal is then transmitted to the engine electronic control module (ECM) and converted into a vehicle speed. The amber warning lamp behaviour, the exact conditions that set and clear the code, and the guided steps that isolate the Wheel-Based Vehicle Speed are documented in order.
code 241 DTCs document details
| Brand | Cummins |
|---|---|
| Model coverage | Cummins ISX11.9 CM2250 (2010-12), ISX12 CM2250 (2010-12) engines |
| System / Group | ISX11.9 CM2250 (2010-12) / DTCs |
| Fault code | 241 — SPN 84, FMI 2/2 |
| PID | P84 |
| Warning lamp | Amber |
| Year / Revision | 2010-12 (CM2250) |
| Pages | 15 |
| File size | 0.3 MB |
| Format | |
| Language | English |
Document table of contents
- Overview and Circuit Description
- Component Location
- Conditions for Running the Diagnostics
- Conditions for Setting the Fault Codes
- Action Taken When the Fault Code is Active
- Associated Procedures and Troubleshooting Steps
- Guided circuit-response and connector checks
- Conditions for Clearing the Fault Code
Applicable truck models covered
This document applies to Cummins ISX11.9 CM2250 (2010-12), ISX12 CM2250 (2010-12) engines, within the shared Cummins CM2250 platform diagnostics. The guided steps rely on the Cummins INSITE electronic service tool to read active fault codes, monitor sensor data and confirm the repair once the Wheel-Based Vehicle Speed has been serviced. Always confirm engine and calibration coverage against the official Cummins engine support site before ordering parts.
Who needs this code 241 DTCs manual
Diesel technicians and workshop owners servicing Cummins CM2250 platform engines use this file to work SPN 84, FMI 2/2 in the correct order instead of guessing at parts. It lists every conditions block, associated procedure and guided circuit-response check, with the connector and harness inspection points and the specification each step expects. Following the troubleshooting steps in sequence keeps the repair accountable and lets the technician confirm the fault is inactive once verified with the Cummins INSITE electronic service tool.
The full PDF, including the complete guided troubleshooting tree and specifications, is available in the DiagTechPro manuals library; a free account is required to download it.
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