Shutdown - Test
Use this procedure to troubleshoot the electrical system if a problem is suspected with the shutdown switch.
Show/hide table
| |
| Illustration 1 | g03845587 |
Show/hide table
| Troubleshooting Test Steps | Value | Results |
|---|---|---|
1. Inspect Electrical Connectors and Wiring. A. Turn the engine control switch to the OFF position. B. Thoroughly inspect the J1/P1 connector. Thoroughly inspect the J17/P17 connector. The connectors should be free of abrasions, corrosion, and pinch points. Refer to Troubleshooting, "Electrical Connectors - Inspect". C. Perform a D. Check the allen head screw on each ECM connector for the proper torque. Refer to Troubleshooting, "Electrical Connectors - Inspect". E. Check the harness for abrasions and for pinch points from the battery to the ECM. |
Electrical connectors and wiring |
Result : The electrical connectors and wiring are OK. Proceed to Test Step 2. Result : The electrical connectors and wiring are NTO OK. Repair : Repair the connectors or the harness and/or replace the connectors or the harness. Ensure that all of the seals are correctly in place and ensure that the connectors are coupled. If the problem is not resolved, proceed to Test Step 2. |
2. Check the Switch Status with Cat® Electronic Technician (ET). A. Turn the engine control switch to the OFF position. B. Connect to the service tool connector. C. Turn the engine control switch to the ON position. D. Toggle the engine shutdown switch. Observe the status on Cat ET. |
Shutdown switch status |
Result : The shutdown switch status is OK. Repair : The shutdown input is functioning properly. Refer to Troubleshooting, "Electrical Connectors - Inspect" for further information. Result : The shutdown switch status is NOT OK. Proceed to Test Step 3. |
3. Short the Inputs at the Connector. A. Turn the engine control switch to the OFF position. B. Remove the wire from P17-14 and leave the wire disconnected. C. Turn the engine control switch to the ON position. D. Observe the status of the engine shutdown switch on Cat ET. E. Turn the engine control switch to the OFF position. F. Short the wire from P17-14 to the battery negative. Use an ohmmeter to verify the connection. G. Observe the status of the engine shutdown switch on Cat ET. H. Turn the engine control switch to the OFF position. |
Shutdown switch status |
Result : The shutdown status is OK. Repair : The ECM and the harness are functioning properly. The customer wiring and the junction box are the source of the problem. Result : The shutdown status is NOT OK. Proceed to Test Step 4. |
4. Short The Switch Inputs At The ECM. A. Turn the engine control switch to the OFF position. B. Remove the wire from P14-17 and leave the wire disconnected. C. Turn the engine control switch to the ON position. D. Observe status of the engine shutdown switch on Cat ET. E. Install Deutsch connectors on a F. Connect the wire between P14-17 and the battery negative. G. Observe the status of the engine shutdown switch on Cat ET. |
Shutdown switch status |
Result : The shutdown status switch is OK. Repair : The ECM reads the inputs properly. There is a problem in the harness or the junction box. Result : The shutdown status switch is NOT OK. Repair : The ECM is not reading the inputs correctly. Replace the ECM. Refer to Troubleshooting, "ECM - Replace" for further information. |
Caterpillar Information System:
Cat® MineStar System A5:N2 Router Setup and Configuration Guide {7008, 7605} Cat® MineStar System A5:N2 Router Setup and Configuration Guide {7008, 7605}
C32 Marine Engines Aftercooler - Install
C32 Marine Engines Aftercooler - Remove
G3606 and G3608 Engines Prelubrication Oil Pump - Install
G3600 A4 Engines Manual Stop Procedure
G3600 A4 Engines Before Starting Engine
G3600 A4 Engines Product Lifting
3512C Generator Set Engine Engine Oil Pump - Remove and Install
G3600 A4 Engines Engine Stopping
3512C Generator Set Engine Engine Oil Cooler - Assemble
3512C Generator Set Engine Engine Oil Cooler - Disassemble
3412 Generator Set Sensor Supply - Test
3512C Generator Set Engine Engine Oil Filter Housing - Remove and Install
794 AC Off-Highway Truck Field Assembly Air Lines (Turbocharger) - Install
3412 Generator Set Speed Control (Engine Speed Switch) - Test
Energy Storage System General Information
3412 Generator Set Speed Control (PWM) - Test
Energy Storage System Abbreviations and Acronyms
Energy Storage System Site Considerations
Energy Storage System Service Tools
Energy Storage System Site Inspection and Material Inventory
Energy Storage System Equipment
Energy Storage System Enclosure Placement and Anchoring
Energy Storage System Mechanical Assembly