Implement blade moves to an extreme position when placed in Auto.

Symptoms:

When placing the machine in Auto, the implement’s blade dives deep, climbs to full height, or tips fully to one side.

Cause:

SCV hoses are incorrectly configured (reversed).

UCC2 with JD proprietary mode configured for SCV control but JD Legacy “Option connector” is also connected to the tractor.

Solutions:

Short of altering the hydraulic hose configuration on the implement’s cylinders, there is no known solution for iGrade v1. 

iGrade v2 also gives the option of reversing the outputs.

Ensure Option connector on rear of machine is disconnected, Then complete 2X power cycles to reset the SCV Controller