TACHOMETER ASSEM. 5S8167 - Caterpillar

Illustration 1 g01197418
Schematic for the Kickout Set SwitchThis switch has two inputs to the ECM. Both inputs are normally open. During proper operation, both inputs are normally open. This diagnostic code is recorded when the status of both the inputs are grounded.The possible causes of this diagnostic code are listed:
Both inputs are shorted to ground in the harness.
Both inputs are shorted together. The switch must be in one specific position.
The switch has failed.System Response:The machine response is listed:
The switch will not change the kickout position.Note: Table 1 contains wire numbers and connector contacts. Use this information to troubleshoot the failed circuit.
Table 1
Status for the Kickout Set Switch    
Switch Position     J1-35 (wire H708-OR) Lift     J1-40 (wire H709-BU) Tilt    
LIFT     Open     Ground    
TILT     Ground     Open    
OFF     Ground     Ground    Note: The following test procedure may create other diagnostic codes. Ignore these created diagnostic codes and clear the diagnostic codes when the original diagnostic code is corrected.Note: Ensure that the diagnostic code indicator is active and that the diagnostic code is active.Test Step 1. CHECK THE SWITCH.
Observe ON/OFF status of the diagnostic code indicator.
Disconnect the connector of the switch from the harness.Expected Result:The diagnostic code indicator remains active.Results:
YES - The diagnostic code indicator remains active. The switch is not the cause of the diagnostic code. Proceed to Test Step 2.
NO - The diagnostic code indicator is inactive. The switch has failed or the harness has failed.Repair: Repeat this test in order to verify the failure of the switch. Repair the switch or replace the switch. Repair the harness or replace the harness. Stop.Test Step 2. CHECK THE HARNESS CIRCUIT.
This test checks the continuity of the entire harness circuit that has failed. This test includes the switch that was previously checked.
Turn the disconnect switch to the OFF position.
Reconnect the switch that was disconnected in the previous step.
Disconnect the harness from the ECM.
Operate the switch in the tilt and lift positions.Expected Result:The continuity agrees with Table 1.Results:
YES - The continuity agrees with the values in the preceding table. The harness circuit is correct.Repair: It is unlikely that the ECM has failed. Exit this procedure and perform this troubleshooting procedure again. If the cause of the diagnostic code is not found, replace the ECM. See Testing and Adjusting, "Electronic Control Module (ECM) - Replace". Stop.
NO - The continuity check DOES NOT agree with values in the preceding table.Repair: The harness circuit has failed. There is a short to ground in the harness between the ECM and the switch. Repair the harness or replace the harness. Stop.