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Auxiliary Pressure Sensor Input 1 – Special Instructions
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Overview
| CODE | REASON | EFFECT |
| Fault Code: 296 PID: P223 SPN: 1388 FMI: 14 LAMP: Red SRT: |
Auxiliary Pressure Sensor Input 1 – Special Instructions |
Possible engine power derate. |
 OEM Temperature/Pressure Sensor Circuit
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Circuit Description
The original equipment manufacturer (OEM) has the option of wiring a pressure sensor input to the Cummins electronic control module (ECM). A specific calibration is then created to recognize this pressure sensor input. This fault code is activated when the pressure or temperature input from the OEM sensor exceeds the engine protection limit defined by the OEM. Depending on OEM requirements, an Engine Protection derate may be associated with this fault code.
Component Location
The OEM pressure sensor input will vary depending on application. Refer to the OEM troubleshooting and repair manual for sensor location.
Shop Talk
Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe® Online for applicable fixes to the calibration stored in the ECM. If necessary, recalibrate the ECM. Refer to Procedure 019-032 (ECM Calibration Code) in Section 19 in the corresponding Troubleshooting and Repair Manual for the engine being serviced.
This fault code is activated when the pressure input from the OEM sensor exceeds the engine protection limit defined by the OEM. An engine power derate is possible depending on the OEM application.
Refer to Troubleshooting Fault Code t05-296
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