The user defined switch can be set to either "Active - High" or to "Active - Low". Use the Caterpillar Electronic Technician (ET) to select the status of the switch. Also use Cat ET to view the status of the switch. The switch can also be set to "Not Installed" or "Installed" by using the configuration screen on Cat ET.
The Electronic Control Module (ECM) detects the following condition:
- The user defined switch has been activated.
System Response:
The ECM will log the event. The ECM will provide a warning to the operator when the switch is set to "Active - Low". The ECM will cause the engine to shutdown if the switch is set to "Active - High".
Possible Performance Effect:
The ECM will provide a warning to the operator when the switch is set to "Active - Low". The ECM will cause the engine to shutdown if the switch is set to "Active - High".
Test Step 1. TALK TO THE OPERATOR
Determine the reason for the activation of the user defined shutdown.
Results:
- OK - The operator activated the user defined shutdown.
STOP
- Not OK - The operator did not activate the user defined shutdown.
Repair: If there is a problem with the user defined shutdown circuit, refer to Troubleshooting, "User Defined Shutdown Input Circuit - Test".
STOP