CIRCUIT 4838513 - Caterpillar

Table 1
Diagnostic Codes Table    
CDL Code    Code Description    Comments    
E265 (1)     User Defined Shutdown     The user-defined shutdown has been activated.
The engine will shut down. The code is logged.    
E265 (3)     User Defined Shutdown     The user-defined shutdown has been activated.
The engine will shut down. The code is logged.    The user-defined shutdown switch will shut down the engine. The engine ECM remains active. Caterpillar Electronic Technician (ET) can be used to communicate with the ECM. The user-defined shutdown switch must be returned to the RUN position before the ECM will allow the engine to start.The ECM reads the position of the user-defined shutdown switch. If the engine is running, the ECM disables the fuel injection. The status screen will display"Injection Disabled" and "Remote Shutdown".
Illustration 1 g02111792
Schematic
Illustration 2 g02111811
P1 ECM connector (P1-60) User defined shut down (P1-5) ReturnTest Step 1. Check the Status of the Shutdown Switch on Cat ET
The user-defined shutdown has been activated.
Use Cat ET to verify that the engine rpm is 0. Return the shutdown switch to the RUN position.
Use Cat ET to observe the status of the shutdown switch.Results:
The status of the shutdown switch changed states after returning the shutdown switch to the RUN position. - Repair: The shutdown switch is operating correctly.STOP
The status of the shutdown switch does not change states after returning the shutdown switch to the RUN position. - Repair: Perform the following procedure.
Disconnect the harness from the shutdown switch.
Install a jumper wire between terminal 1 (switch ) and terminal 2 (switch return) at the sensor connector.
The status of the shutdown switch did not change states after creating the short circuit.Repair the wiring or replace the harness.Use Cat ET to verify that the problem is resolved.
The status of the shutdown switch changed states after creating the short circuit.Install a new shutdown switch.Use Cat ET to verify that the problem is resolved.STOP