SHOE-TRACK MASTER 3P1133 - Caterpillar

Illustration 1 g01382553
Typical schematic
Illustration 2 g01382297
P1 ECM connector
(P1-21) Start/Run/Stop switch 1
(P1-22) Start/Run/Stop switch 2
Illustration 3 g01382298
Customer connector
(Terminal 46) Start/Run/Stop switch 1
(Terminal 47) Start/Run/Stop switch 2
Illustration 4 g01234146
Location of ECM connectors
Test Step 1. Inspect Electrical Connectors and Wiring
Turn the main disconnect switch to the OFF position.
Thoroughly inspect the ECM connectors. Inspect all of the other connectors for the circuit. Refer to Troubleshooting, "Electrical Connectors - Inspect" for details.
Perform a 45 N (10 lb) pull test on each of the wires in the ECM connector that are associated with the circuit.
Check the ECM connector (allen head screw) for the proper torque. Refer to Troubleshooting, "Electrical Connectors - Inspect" for details.
Check the harness and the wiring for abrasion and for pinch points. Expected Result:All connectors, pins, and sockets are completely coupled and/or inserted. The harness and wiring are free of corrosion, of abrasion, and of pinch points.Results:
OK - The connectors and wiring are OK. Proceed to Test Step 2.
Not OK - There is a problem in the connectors and/or wiring.Repair: Repair the connectors or wiring and/or replace the connectors or wiring. Ensure that all of the seals are properly in place and ensure that the connectors are completely coupled.Verify that the repair eliminates the problem.STOPTest Step 2. Check the Status of the ECS on Caterpillar Electronic Technician (ET)
Connect Cat ET to the service tool connector.
Turn the main disconnect switch to the ON position.
Monitor the status for the ECS on Cat ET.
Turn the ECS to the START position.
Monitor the status for the ECS on Cat ET.
Turn the ECS to the STOP position. Expected Result:The status for the ECS reads "OFF" when the ECS is turned to the STOP position. The status for the ECS reads "ON" when the ECS is turned to the START position.Results:
OK - The status for the ECS is correct in both the STOP and the START positions.Repair: The circuit for the ECS is functioning correctly. Reset the system and check for any active diagnostic codes. If the problem is intermittent, refer to Troubleshooting, "Electrical Connectors - Inspect".STOP
Not OK - The status for the switch is not correct in either the STOP or the START positions. Proceed to Test Step 3.Test Step 3. Check the Wiring for an Open Circuit
Turn the main disconnect switch to the OFF position.
Disconnect the ECM connector J1/P1.
Note the location of the wires on the ECS. Remove the wire to the −Battery from the ECS.
Check continuity between P1-21 and the wire F716-BK(Black) on the ECS.
Check continuity between P1-22 and the wire G716-BK(Black) on the ECS.
Check continuity between the wire to the −Battery on the ECS and the −Battery. Expected Result:Each resistance measurement indicated a short circuit.Results:
OK - Each resistance measurement indicated a short circuit. Proceed to Test Step 4.
Not OK - A resistance measurement did not indicate a short circuit.Repair: There is excessive resistance or an open in the wiring. Repair the connectors or wiring and/or replace the connectors or wiring.STOPTest Step 4. Check the Wiring for a Short Circuit
Remove the wire F716-BK(Black) and the wire G716-BK(Black) from the