This Cummins fault code 134 document is a troubleshooting manual for the remote accelerator pedal or lever position sensor circuit. It explains the low-voltage or short-to-low-source fault, the ECM response, INSITE checks, wiring tests, and repair validation steps for the CM2250 engine coverage shown in the file.
Official Cummins fault code 134 document details
| Brand | Cummins |
|---|---|
| Model coverage | ISB6.7 CM2250; also lists ISX11.9 CM2250, ISC8.3 and ISL9 CM2250, ISX15 CM2250, GX CM2250, QSL9 CM2250, and QSB6.7 CM2250 in associated procedures. |
| System/Group | ISB6.7 CM2250 (2010-12) / DTCs; Remote Accelerator Pedal or Lever Position Sensor 1 Circuit |
| Publication no. | 4022254 for ISB6.7 CM2250 associated procedures |
| Year/Revision | Last modified 11-Jun-2010 and 30-Dec-2010 |
| Pages | 17 |
| File size | 0.3 MB |
| Format | |
| Language | English |
Document table of contents
- Overview
- Circuit Description
- Component Location
- Conditions for Running the Diagnostics
- FAULT CODE 134 – Remote Accelerator Pedal or Lever Position Sensor 1 Circuit – Voltage Below Normal or Shorted to Low Source
- 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 1B – Check for an active fault code
- Guided Step 2 – Check the remote accelerator pedal position sensor and circuit
- Guided Step 2A – Inspect the remote accelerator pedal position sensor and connector pins
- Guided Step 2B – Check the remote accelerator pedal position sensor supply voltage and return circuit
- Guided Step 2D – Check the fault codes and verify remote accelerator pedal
- Guided Step 3C – Check for an open circuit in the OEM harness
- Guided Step 3F – Check for an inactive fault code
- Guided Step 4B – Disable the fault code
Applicable truck models
The file applies to Cummins engines using the remote accelerator pedal or lever position sensor circuit described for ISX11.9 CM2250, ISB6.7 CM2250, ISC8.3 and ISL9 CM2250, and ISX15 CM2250. The associated procedures table also names ISF2.8 CM2220, ISF3.8 CM2220, ISB4.5, ISB6.7, ISD4.5, ISD6.7 CM2150 SN, ISL8.9 CM2150 SN, ISM11 CM876 SN, ISZ13 CM2150, GX CM2250, QSL9 CM2250, and QSB6.7 CM2250; component location is OEM-dependent and requires the OEM service manual. Manufacturer information is available at Cummins official website.
Who needs this Cummins fault code 134 manual
Workshop technicians need this Cummins fault code 134 manual when the red STOP ENGINE lamp is active and INSITE reports SPN 974 FMI 4/4 for low remote accelerator signal voltage. It is useful for checking +5 volt supply, return, signal response, connector damage, open circuits, pin-to-pin shorts, pin-to-ground shorts, ECM calibration status, and final clearing conditions.
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