This Cummins code 2322 manual is a fault-code troubleshooting document for the engine camshaft speed/position sensor circuit. It explains the circuit description, fault conditions, INSITE™ service tool checks, connector inspections, harness inspections, air gap limits, ECM calibration review, and fault clearing steps for Cummins CM2250 applications.
Official Cummins code 2322 manual document details
| Brand | Cummins |
|---|---|
| Model coverage | ISB6.7 CM2250, with associated coverage also listing ISX11.9 CM2250, ISC8.3 and ISL9 CM2250, ISX15 CM2250, GX CM2250, QSL9 CM2250, and QSB6.7 CM2250 |
| System/Group | ISB6.7 CM2250 (2010-12) / DTCs; Engine Camshaft Speed/Position Sensor Circuit |
| Publication no. | 4022254 for ISB6.7 CM2250 in the associated procedures table |
| Year/Revision | Last Modified: 28-Dec-2010; overview page Last Modified: 11-Jun-2010 |
| Pages | 14 |
| File size | 0.2 MB |
| Format | |
| Language | English |
Document table of contents
- Overview
- Circuit Description
- Component Location
- Conditions for Running the Diagnostics
- FAULT CODE 2322 – Engine Camshaft Speed/Position Sensor – Data Erratic, Intermittent, or Incorrect
- 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 1A – Check for an active fault code
- Guided Step 2A – Inspect the secondary speed sensor (camshaft sensor) connector pins
- Guided Step 2D – Inspect the engine harness
- Guided Step 3C – Manipulate the engine harness to test for an intermittent fault condition in the engine harness
- Guided Step 4 – Check ECM calibration and clear fault codes
- Guided Step 4B – Disable the fault code
Applicable truck models
This document applies to Cummins electronic engines listed in the procedure tables, including ISB6.7 CM2250 and related CM2250 platforms. The fault description covers SPN 723, FMI 2/2, PID S064, with the reported condition “Engine Camshaft Speed/Position Sensor – Data Erratic, Intermittent, or Incorrect.” The procedure is aimed at the secondary speed sensor, identified in the steps as the camshaft sensor, and the related engine harness, ECM connector, target wheel, and sensor air gap. The extract also references Fault Code 778 when checking whether the primary or secondary speed sensor circuit has active or high inactive counts. Manufacturer information is available from Cummins official website.
Who needs this Cummins code 2322 manual manual
Workshop owners, diesel mechanics, and diagnostic technicians need this Cummins code 2322 manual when a CM2250 engine logs intermittent camshaft speed/position sensor synchronization faults. It is useful for checking connector pin damage, wire insulation damage, air gap specification, target runout, ECM calibration level, and INSITE™ fault status before replacing parts.
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