Cummins ISX11.9 code 1942 is the diagnostic fault code for the crankcase pressure signal that is erratic, intermittent, or incorrect, and this page describes the official Cummins troubleshooting document for it. This fault is reported as SPN 101 / FMI 2, and PID P101. The 13-page PDF gives the circuit description, the conditions that set fault code 1942, the action taken when it is active, and the guided troubleshooting steps needed to confirm and repair it.
Official document details
| Brand | Cummins |
|---|---|
| Model coverage | ISX11.9 CM2250 (2010-12), ISX12 CM2250 (2010-12) |
| System / Group | DTCs — Fault Code 1942 |
| SPN / FMI | 101 / 2 |
| PID | P101 |
| Warning lamp | Amber |
| Pages | 13 |
| File size | 0.2 MB |
| Format | |
| Language | English |
Document table of contents
- Overview and circuit description
- Fault code 1942 — reason, cause and effect
- Conditions for running the diagnostics
- Conditions for setting the fault code
- Action taken when the fault code is active
- Conditions for clearing the fault code
- Shop Talk — possible causes
- Associated procedures and guided troubleshooting steps
Cummins ISX11.9 code 1942 coverage
The crankcase pressure sensor monitors the pressure inside the engine crankcase and reports it to the ECM. The procedure covers ISX11.9 CM2250 (2010-12) and ISX12 CM2250 (2010-12) engines and is shared across the CM2250 engine family listed in the associated procedures table. Cummins publishes the full specifications and service procedures for this engine family; see the manufacturer at Cummins.
The document lists the possible causes the factory tree checks:
- resistance in the wiring harness
- a malfunctioning in-range pressure sensor
- a crankcase pressure sensor that is not installed correctly in its housing
Who needs this Cummins ISX11.9 code 1942 manual
Fleet technicians and workshop owners will use this guide to read the amber-lamp fault with the INSITE electronic service tool, inspect the crankcase pressure sensor and its wiring, and decide whether the sensor, harness, or ECM is at fault. Confirm ISX11.9 code 1942 against live data before replacing any part, and follow the guided troubleshooting steps in the order the document gives them.
The full PDF is available in the DiagTechPro manuals library; a free account is required to download it.
Related manuals library
Sản phẩm liên quan cho hãng này
Cùng brand theo taxonomy hiện có trong catalog WooCommerce.
Cummins Calterm Version 5.16 – Advanced ECM Control and Precision Tuning for Cummins Engines
Cummins INSITE 9.3 – The Essential Diagnostic Tool for Cummins Engines
Cummins InCal CE – The Calibration and Configuration Tool for Cummins Engines
