This Cummins code 131 troubleshooting document is a fault-code diagnostic procedure for the accelerator pedal or lever position sensor 1 circuit. It explains the circuit description, fault conditions, likely causes, guided electrical checks, ECM harness tests, calibration review, and fault-code clearing process for Cummins CM2250 engines.
Official Cummins code 131 troubleshooting document details
| Brand | Cummins |
|---|---|
| Model coverage | ISB6.7 CM2250, with related coverage shown for ISX11.9 CM2250, ISC8.3 and ISL9 CM2250, ISX15 CM2250, QSL9 CM2250, QSB6.7 CM2250, GX CM2250, and other listed Cummins engine families |
| System/Group | ISB6.7 CM2250 (2010-12) / DTCs; Accelerator Pedal or Lever Position Sensor Circuit |
| Publication no. | 4022254 for ISB6.7 CM2250 in the associated procedures table |
| Year/Revision | Last Modified: 14-Dec-2010 and 30-Dec-2010 |
| Pages | 16 |
| 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 accelerator pedal position sensor and circuit.
- Guided Step 3 – Check the ECM and OEM harness.
- Guided Step 4 – Check ECM calibration and clear fault codes.
Applicable truck models
This PDF applies to Cummins engines using the accelerator pedal or lever position sensor circuit described for Fault Code 131, including ISB6.7 CM2250 and related CM2250 engine models listed in the associated procedures table. The extract identifies ISX11.9 CM2250, ISC8.3 and ISL9 CM2250, ISX15 CM2250, GX CM2250, QSL9 CM2250, and QSB6.7 CM2250, and it directs the technician to the OEM service manual for accelerator pedal or lever location and replacement information. For manufacturer information, visit the Cummins official website.
Who needs this Cummins code 131 troubleshooting manual
Mechanics, fleet technicians, and workshop owners need this manual when a truck has Fault Code 131, PID P091, SPN 91, FMI 3/3, a red STOP ENGINE lamp, high accelerator pedal position sensor 1 voltage, or limp-home power only. The procedure is useful for checking 5 volt supply, return, signal circuit response, connector condition, OEM harness resistance, pin-to-pin shorts, and ECM calibration status with INSITE™ electronic service tool.
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