This code 1695 DTCs document is a troubleshooting manual for Sensor Supply 5 voltage above normal or shorted to a high source. It explains the circuit, fault conditions, engine effect, INSITE checks, OEM harness tests, ECM calibration review, and final fault clearing steps for CM2250 applications.
Official code 1695 DTCs document details
| Brand | Cummins |
|---|---|
| Model coverage | ISB6.7 CM2250, with associated CM2250 engine listings shown in the procedure table |
| System/Group | ISB6.7 CM2250 (2010-12) / DTCs; Sensor Supply 5 Circuit |
| Publication no. | Not specified in the file; associated bulletin numbers include 4022254, 4022257, 4022250, 2883445, 4022256, and 4022255 |
| Year/Revision | Last Modified: 11-Jun-2010; troubleshooting section Last Modified: 18-Jan-2011 |
| Pages | 9 |
| 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
- Troubleshooting Steps
- Guided Step 1 – Check the fault codes.
- Guided Step 2 – Check the ECM and OEM harness.
- Guided Step 3 – Check ECM calibration and clear fault codes.
Applicable truck models
The procedure is written for CM2250 engines and lists ISX11.9 CM2250, ISB6.7 CM2250, ISC8.3 and ISL9 CM2250, ISX15 CM2250, GX CM2250, QSL9 CM2250, and QSB6.7 CM2250 in associated procedure coverage. The circuit supplies 5 VDC to components in the OEM harness, including the aftertreatment diesel particulate filter differential pressure sensor, remote accelerator, engine coolant level sensor, fan speed sensor, and accelerator position sensor 2. For manufacturer information, visit Cummins official website.
Who needs this code 1695 DTCs manual
This manual is for diesel mechanics, diagnostic technicians, and workshop owners troubleshooting an amber CHECK ENGINE light or MIL with high voltage detected on Sensor Supply 5. It is useful when the engine is in severe derate, limp-home throttle control only, or when INSITE shows the fault as active or inactive.
The troubleshooting flow starts with INSITE fault-code status, then moves to ECM and OEM harness connector inspection. It checks for loose connectors, corroded pins, bent or broken pins, pushed back or expanded pins, moisture, missing seals, dirt, damaged connector shells, wire insulation damage, and locking tab damage. The document then gives resistance checks for pin-to-pin shorts and shorts to ECM battery positive, using a greater than 100k ohms specification. If harness checks pass, it directs the technician to compare the ECM code and revision number against calibration revision history and update the ECM if required. The final step is to operate the engine under the clearing conditions, disable and clear the fault code, and confirm the fault becomes inactive.
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