M11 accelerator position sensor is the Cummins M11 CELECT Plus diagnostic entry for fault code 132, accelerator position sensor circuit (SPN 91, FMI 4). This page summarises what the code reports, the circuit involved, and the official Cummins troubleshooting document behind it, taken from the fault-code publication for Cummins M11 CELECT Plus engines. It is written for mechanics and workshop owners who want to confirm the code before ordering parts.
What M11 accelerator position sensor means
Fault code 132 is logged against accelerator position sensor circuit. The document reports a red lamp, which signals a severe condition that can require the engine to be stopped or protected. The accelerator position sensor is attached to the accelerator pedal. The accelerator position sensor sends a signal to the Electronic Control Module (ECM) when the driver pushes on the accelerator pedal. The accelerator position circuit contains three wires: +5 VDC supply (wire 18), return (wire 19), and signal (wire 11).
Circuit description and component location
Component location. The accelerator position sensor (APS) is located on the accelerator pedal.
The official diagnostic identifiers for this fault let you match the code across scan tools and repair records:
- PID: P091
- SPN: 91
- FMI: 4
- Lamp: RED
- SRT code: 00-084
The document walks the technician through the numbered troubleshooting steps for this circuit, from connector inspection to resistance and short-to-ground measurements, so the fault can be confirmed before any part is replaced. Each step ends in a yes or no branch that either clears the code or sends you to the next check, which keeps the diagnosis systematic and avoids guesswork on the bench.
How to diagnose M11 accelerator position sensor
Start by reading the live codes with an approved Cummins diagnostic tool and confirming the code is active. Inspect the harness connector pins for bent or corroded terminals, pushed-back pins and moisture, then follow the manufacturer resistance and continuity checks in the order given. Diagnostic procedures for Cummins M11 CELECT Plus engines are published by Cummins; see the Cummins official website for engine documentation and authorised service-network support.
Official references and part numbers
Standard Repair Time reference SRT 00-084; service tool part numbers such as 3824510, 3823255, 3824910. Use these identifiers to order the correct Cummins service publication and tooling, and to log the repair accurately for the fleet record. The full PDF is filed in the DiagTechPro manuals library for mechanics and workshop owners to download.
Applies to these truck models
This is the manufacturer document shared across 2 model families. It applies to:
- Cummins DTCs
- Cummins M11 CELECT Plus (1995-98)
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