This Cummins fault code 253 document is a diagnostic PDF for the engine oil level fault on CM2150-controlled engines. It explains the oil level sensor circuit, the conditions for setting the red STOP ENGINE lamp, and the guided INSITE™ steps used to confirm, disable, and clear the code.
Official Cummins fault code 253 document details
| Brand | Cummins |
|---|---|
| Model coverage | ISB6.7 CM2150 (2007-09); extract also references ISB, ISC and ISL with CM2150 |
| System/Group | DTCs; Engine Oil Level Sensor Circuit |
| Publication no. | Not shown in extract |
| Year/Revision | Last Modified: 20-Jul-2010 |
| Pages | 5 |
| File size | 0.2 MB |
| Format | |
| Language | English |
Document table of contents
- Overview
- Circuit Description
- Component Location
- Conditions for Running the Diagnostics
- Conditions for Setting the Fault Codes
- FAULT CODE 253
- 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 1A – Read the fault codes.
- Guided Step 2 – Clear the fault codes.
- Guided Step 2A – Disable the fault codes.
- Guided Step 2B – Clear the inactive fault codes.
Applicable truck models
This file applies to Cummins ISB6.7 CM2150 engines in the 2007-09 coverage group, and the extract also identifies ISB, ISC and ISL with CM2150 for the Engine Oil Level Sensor Circuit. The document is useful when Fault Code: 253, PID: P98, SPN: 98, FMI: 1 is present, meaning the engine oil level is data valid but below normal operational range at the most severe level. The procedure states that diagnostics run with the keyswitch ON and engine speed at 0 rpm, and that the oil level sensor is located on the engine oil dipstick on the air intake side. See official manufacturer support at Cummins.
Who needs this Cummins fault code 253 manual
Workshop owners, diesel mechanics, and fleet technicians need this fault code 253 manual when diagnosing very low oil level warnings, red STOP ENGINE lamp events, possible derate, possible low oil pressure, or possible severe engine damage. It also helps when checking whether the ECM calibration is correct, reviewing QuickServe® Online calibration history, adding engine lubricating oil, and using INSITE™ electronic service tool to read or clear inactive fault codes.
The full PDF is available in the DiagTechPro manuals library, free account required to download.
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