CYLINDER AS 2725667 - Caterpillar

This procedure applies to machines that have the Advanced Control Joysticks installed. If the Grade Control Push Button pods are installed on the machine, go to the prior CID 2259 procedure.
Illustration 1 g03818210
Connections of the right Auto/Manual switch on the right Advanced Control Joystick
This diagnostic will only be used when the Advanced Control Joystick is configured for grade control.This diagnostic code is associated with the Auto/Manual Switch on the right Advanced Control Joystick. The FMI 03 diagnostic code is activated when the Implement ECM detects an above normal voltage of the circuit.The following conditions could cause this diagnostic code to be activated:
The switch has failed.
The normally closed circuit of the switch is open.
The ground circuit of the switch is open.
The ECM has failed. An ECM failure is unlikely.Note: The following test procedure may create other diagnostic codes. Clear these created diagnostic codes when the original diagnostic code has been corrected. Verify that the diagnostic code of CID 2259 FMI 03 is active before performing this procedure.Note: Use a 146-4080 Digital Multimeter for the measurements in this procedure.System Response:When this diagnostic code is active the hydraulic control system will default to the "Auto Not Allowed" state.Test Step 1. CHECK THE SWITCH
Turn the disconnect switch to the OFF position.
Turn the key start switch to the OFF position.
Disconnect the machine harness connector from the switch.
Use the Multimeter to verify the proper operation of the switch. Refer to Table 1 for the switch operation.
Table 1
(NC) J769 to -H745 (NO) Y938 to H745
Less than 5 ohms (switch not depressed) Less than 5 ohms (switch depressed)
Greater than 5000 ohms (switch depressed) Greater than 5000 ohms (switch not depressed) Expected Result:The switch is operating correctly.Results:
OK - The switch is operating correctly. Proceed to Test Step 2.
NOT OK - The switch is not functioning correctly. There is an internal failure in the switch.Repair: Replace the switch.STOPTest Step 2. CHECK THE NORMALLY OPEN CONTACTS AND NORMALLY CLOSED CONTACTS OF THE SWITCH CIRCUITS IN THE HARNESS
The key start switch and the disconnect switch remain in the OFF position.
Disconnect the machine harness connectors from the ECM. Note: The switch remains disconnected.
At the connector for the switch, connect a jumper wire between pin 6 and pin 5.
At the machine harness connector for