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Auxiliary Equipment Sensor Input 3 Engine Protection Critical – Special Instructions
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Overview
CODE | REASON | EFFECT |
Fault Code: 2195 PID: S51 SPN: 703 FMI: 14 LAMP: Red SRT: |
Auxiliary Equipment Sensor Input 3 Engine Protection Critical – Special Instructions. The emergency door of the vehicle has been detected open. |
Engine may shut down. |
![]() Auxiliary Engine Protection
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Circuit Description
Some vehicle applications may have an interlock switch indicating the position of an emergency exit door.
Component Location
The emergency door location may vary depending on the vehicle application.
Conditions for Running the Diagnostics
The diagnostic runs continuously when the keyswitch is in the ON position.
Conditions for Setting the Fault Codes
This fault code is triggered when the vehicle emergency door is opened.
Action Taken When the Fault Code is Active
- The ECM illuminates the red STOP ENGINE light immediately when the diagnostic runs and fails. The engine will be shut down.
Conditions for Clearing the Fault Code
The ECM will turn off the red STOP ENGINE light immediately after the diagnostic runs and passes.
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 diagnostic will operate differently for every vehicle application. This fault code usually indicates that the vehicle emergency exit door has been opened.
Refer to Troubleshooting Fault Code t05-2195