This fault code 693 DTCs document is a troubleshooting manual for the Turbocharger 1 Compressor Intake Temperature fault on CM2250 engines. It explains the circuit description, fault conditions, connector checks, ECM and harness tests, calibration review, and fault clearing steps using INSITE™ electronic service tool. The file is intended for diagnosing SPN 1172 FMI 2 when compressor intake temperature data is erratic, intermittent, or incorrect.
Official fault code 693 DTCs document details
| Brand | Cummins |
|---|---|
| Model coverage | ISB6.7 CM2250; also references ISC8.3 and ISL9 CM2250, ISX11.9 CM2250, ISX15 CM2250, GX CM2250, ISF2.8 CM2220 AN, ISF3.8 CM2220, ISL8.9 CM2150 SN, and ISZ13 CM2150 in associated procedures |
| System/Group | ISB6.7 CM2250 (2010-12) / DTCs; Turbocharger 1 Compressor Intake Temperature Circuit |
| Publication no. | Not stated |
| Year/Revision | Last Modified: 11-Jun-2010; troubleshooting section Last Modified: 18-Jan-2011 |
| Pages | 15 |
| 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
- Action Taken When the Fault Code is Active
- Conditions for Clearing the Fault Code
- Shop Talk
- Associated Procedures
- STEP 1. Check for sensor circuit fault codes.
- STEP 2. Check the turbocharger compressor intake temperature sensor and circuit.
- STEP 3. Check the ECM and engine harness.
- STEP 4. Check ECM calibration and clear fault codes.
Applicable truck models
This document applies to Cummins engine applications listed in the extract, with the file group identified as ISB6.7 CM2250 (2010-12) / DTCs. The diagnostic text also references ISC8.3 and ISL9 CM2250, ISX11.9 CM2250, and ISX15 CM2250 turbocharger compressor intake temperature circuits, plus associated procedures for ECM, ECM calibration code, engine wiring harness, intake manifold pressure/temperature sensor, and turbocharger compressor intake air temperature sensor across several Cummins platforms. For manufacturer information, visit Cummins official website.
Who needs this fault code 693 DTCs manual
Workshop owners, diesel technicians, and fleet mechanics need this manual when an amber CHECK ENGINE lamp or MIL is linked to Turbocharger 1 Compressor Intake Temperature – Data Erratic, Intermittent, or Incorrect. It supports checks for sensor connector damage, high resistance in signal or return lines, stuck in-range sensor behavior, ECM connector issues, ECM replacement authorization steps, and calibration updates.
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