This Cummins fault code 133 document is a troubleshooting procedure for the remote accelerator pedal or lever position sensor 1 circuit on Cummins ISB6.7 CM2150 engines. It explains the circuit description, fault conditions, diagnostic checks, OEM harness tests, ECM checks, and fault-code clearing steps for Code 133.
Official Cummins fault code 133 document details
| Brand | Cummins |
|---|---|
| Model coverage | ISB6.7 CM2150 (2007-09); extract also references ISB, ISC, and ISL remote accelerator pedal position sensor 1 circuit |
| System/Group | DTCs; Remote Accelerator Pedal or Lever Position Sensor 1 Circuit |
| Year/Revision | Last Modified: 20-Jul-2010 |
| Pages | 13 |
| 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 remote accelerator pedal or lever position sensor and circuit.
- Guided Step 3 – Check the ECM and OEM harness.
- Guided Step 4 – Clear the fault codes.
Applicable truck models
This file applies to Cummins ISB6.7 CM2150 (2007-09) diagnostics for the remote accelerator pedal or lever position sensor 1 circuit. The extract identifies the circuit as used on ISB, ISC, and ISL applications, while the actual remote accelerator pedal or lever location varies by OEM and requires the OEM troubleshooting and repair manual for vehicle-specific location details. For manufacturer information, visit Cummins official website.
Who needs this Cummins fault code 133 manual
Workshop technicians and fleet mechanics need this fault code 133 manual when the ECM detects remote accelerator pedal signal voltage above the normal range, with the red STOP ENGINE light active and the remote accelerator set to zero percent. The procedure supports diagnosis with INSITE™ electronic service tool, multimeter voltage checks, resistance measurements, connector inspection, OEM harness repair decisions, and ECM authorization steps.
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