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John Deere Legacy

Interface Overview

John Deere's transition to CANBUS-based SCV control systems occurred progressively across different models starting around the early 2000s. While exact transition years may vary by model series, tractors produced prior to 2005 are likely to require legacy analog control inputs (akin to those produced by a typical laser levelling scraper system).

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image.pngCOMMAND can control John Deere legacy valve systems through the use of a T3H-V001 COMMAND Legacy Output Adapter.

 COMMAND then interfaces with the John Deere tractors SCVs by sending analog signals to the integrated valve controller, commanding either port A or port B flow of two of the rear tractor SCVs (generally SCV1 and SCV3).

To operate the SCVs in automatic control mode, the user must push the respective SCV lever forward into the detent position. This will cause "AUTO" to appear on the console/armrest to indicate that the SCV is ready for automatic control commands. Moving the lever will disengage AUTO mode on the console/armrest. To re-enter AUTO mode, push the SCV lever into detent position again.

For more information on configuring COMMAND for use with JD Legacy Proportional SCVs, refer to the Level COMMAND Manual.

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Connect the T3H-V001 adapter to the T3H-C002 ECU breakout harness at the round Deutsch HD series connector. 

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Connect the 10-way Metripack connector on T3H-V001 to the tractor's SCV signal input plug.




John Deere SCV Controller Connection Overview

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