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O RING 1C3805 - Caterpillar



1C3805 O RING Caterpillar parts O
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Alternative (cross code) number:
CA1C3805
1C-3805
1C3805
Caterpillar 1C3805 O RING
Weight: 2 pounds 1 kg.

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Use this procedure to troubleshoot a suspected problem with the ground level shutdown switch. Use this procedure if a diagnostic code in Table 1 is active or easily repeated.Note: Some of the following codes may not be applicable for certain applications.
Table 1
J1939 Code and Description    CDL Code and Description    Comments    
4215-3
Ground-Level Shutdown Activated : Voltage Above Normal     267-3
Remote Shutdown Input : Voltage Above Normal     If both contacts from the ground level shutdown switch change to the same state and the engine is running, the engine will continue to run. The code is logged.    
4215-4
Ground-Level Shutdown Activated : Voltage Below Normal     267-4
Remote Shutdown Input : Voltage Below Normal     If both contacts from the ground level shutdown switch change to the same state and the engine is running, the engine will continue to run. The code is logged.    
4215-31
Ground-Level Shutdown Activated     E678 (1)
Ground Level Shutdown     The inputs from the ground level shutdown switch to the ECM have changed states.
The engine will shut down. The code is logged.    The 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 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 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 g02714919
Schematic
Table 2
Troubleshooting Test Steps    Values    Results    
1. Determine the Diagnostic Code
A. Establish communication between Cat® ET and the ECM. Refer to Troubleshooting, "Electronic Service Tools", if necessary.
B. Observe the "Active Diagnostic" screen on Cat ET. Wait at least 30 seconds so that any codes may become active.
C. Look for these codes:
E678 or 4215-31
267-3 or 4215-3
267-4 or 4215-4
   
Diagnostic Trouble codes    
Result: A E678 or 4215-31 diagnostic code is active.
Proceed to Test Step 2.
Result: A 267-3 or 4215-3 diagnostic code is active.
Proceed to Test Step 3.
Result: A 267-4 or 4215-4 diagnostic code is active.
Proceed to Test Step 4.
   
2. Check the Status of the Shutdown Switch on Cat ET
A. Activate the shutdown.
B. Use Cat ET to verify that the engine rpm is 0. Return the shutdown switch to the RUN position.
C. Use Cat ET to


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