OMPFP13579

Machine

Symptom

Problem

Solution

AC (Auto Control) not showing on SCV display

Dirty or loose 10-pin connector at rear of machine.

Clean connectors and reconnect tightly.

Verify correct control type, SCVs are selected in Active Implement Guidance setup, and power has been cycled.

Disconnect all Active Implement Guidance components, power up normally, power down machine, reconnect all Active Implement Guidance components, and power up machine. Check all connections for lose or dirty pins.

Implement steers away from line when AutoTrac™ resume button is pressed	SCV hoses hooked up in reverse.	Switch hoses in SCV outlets.
	Implement steering calibration was done with right and left limits reversed.	Perform implement steer calibration again, after reversing right and left inputs.
	Incorrect implement feedback sensor connector plugged into wheel angle sensor.	Plug in correct implement feedback connector with respect to SCV selected in controller.

Machine not steering to line

EC displayed on SCV display.

Push correct SCV control lever into detent to bring up AC mode.

Hydraulic steering not responding well	Steering cylinder leaking fluid.	Check for leakage. See service Section for more information. Repair or replace cylinder. See your John Deere dealer for assistance.
	Insufficient machine hydraulic pressure.	Check machine hydraulic pressure. See machine Operator's Manual for more information. Ensure hydraulic oil is warmed up. Use correct size hydraulic cylinders for machine pressure.
	Counterbalance valve improperly adjusted.	Adjust counterbalance valve cartridges and perform threshold calibration.
	Hydraulic hoses connected improperly or poorly.	Check hose O-rings, connect properly, and tighten connections.
	Valve is frozen.	Manually cycle hydraulic cylinders, to the full right and left. If condition repeats, oil may be contaminated causing plugging, or SCV may require a shuttle valve to prevent it from going into Desilting Mode during low flow conditions.
	Active Implement Guidance settings incorrect.	Verify movement of system with extend and retract tests moves fluidly and adjust sensitivities and thresholds accordingly.

Loss of display and operation of implement	Dirty or loose 4-pin connection at rear of machine.	Clean connectors and reconnect tightly.
	GreenStar™ harness improperly connected.	Power down machine and system, disconnect harness, clean, and install properly.
	Electrical short in harness.	Check electrical wiring for breaks, shorts, and damage.

BA31779,00006B5-19-20131218