This Cummins fault 2185 document is a diagnostic manual for the Sensor Supply 4 Circuit fault on ISB, ISC, and ISL engines with CM2150 control. It explains the accelerator pedal position sensor 5 volt supply circuit, the idle-only engine effect, and the guided checks used with INSITE™.
Official Cummins fault 2185 document details
| Brand | Cummins |
|---|---|
| Model coverage | ISB6.7 CM2150 (2007-09); extract also states ISB, ISC, and ISL with CM2150 |
| System/Group | DTCs; Accelerator Pedal or Lever Position Sensor Supply |
| Publication no. | Not shown in extract |
| Year/Revision | Last Modified: 20-Jul-2010 |
| Pages | 9 |
| File size | 0.3 MB |
| Format | |
| Language | English |
Document table of contents
- Overview
- Circuit Description
- 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 ECM and OEM harness.
- Guided Step 3 – Clear the fault code.
Applicable truck models
This file applies to Cummins ISB6.7 CM2150 coverage for 2007-09 in the DTC group, and the extract also identifies ISB, ISC, and ISL with CM2150 accelerator pedal or lever position sensor supply diagnostics. The procedure is written around the ECM, OEM harness, accelerator pedal position sensor, unswitched battery supply OEM connector, and INSITE™ electronic service tool; vehicle-specific accelerator pedal assembly location is referred to the OEM troubleshooting and repair manual. For manufacturer information, visit Cummins official website.
Who needs this Cummins fault 2185 manual
Workshop owners, diesel technicians, and fleet mechanics need this fault 2185 manual when an amber CHECK ENGINE light is active and the engine will only idle. It supports connector inspection, pin-to-pin resistance checks above 100k ohms, OEM harness repair decisions, ECM authorization direction, and clearing inactive fault codes after repair.
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