Electronic Control Unit (ECU) Installation

Connections Overview

Option 1: In-cab

Mounting in the cab of the tractor is the preferred option, as it best protects the ECU and harnessing from the elements. Mounting the ECU in-cab is best suited to tractors with paneling, compartments or normally covered cab walls with enough room to mount the ECU.

Being mounted in cab will provide access to the following for the T3H-C002 ECU breakout harness:

Power via convenience plug or power strip
Arm/Engage Switch
Tablet
4-way ISOBUS connection from Greenstar ISO harness
Diagnostic ports for tractor CAN access
Joystick
Valve output connections to JD legacy inputs or Case EHR inputs

Cabling will need to be run outside of the cab if:

Proportional solenoid or Danfoss PVE valve cabling must be run out to an external valve block

The photos above show some suitable mounting locations found in older Case tractor models, where an ECU can either be magnet mounted or Rivnut mounted depending on preference.

Option 2: Rear-panel

In situations where the cab doesn't have enough suitable space for mounting the ECU and neatening the harnessing, the ECU can be mounted at the back of the tractor behind rear ~~panelling~~paneling if enough space is available.

The ECU should be mounted with enough space for connection and disconnection of the breakout harness, which will also require some space itself when ~~tieing~~tying up and neatening the T3H-C002 harness.

The ECU can be mounted in much the same way as in-cab - see following pages for information on ECU dimensions and mounting methods.

Option 3: Rear ISOBUS

If there isn't enough space present in the cab or behind the rear paneling of the cab, then there is generally plenty of space to be able to mount the controller at the rear of the tractor near or next to the ISOBUS implement breakaway connector.

If mounting here, magnets are not recommended as there is a lot of potential for dirt and rocks to knock the ECU. Custom bracketing is recommended when installing the controller at the rear of the tractor to help shield the ECU from dirt and rocks, and to also provide a reliably secure mounting connection through the use of bolts and nylon-lock nuts.

Mounting Information & ECU Dimensions

Dimensions Drawing

Magnets

Mounting with strong neodymium magnets can provide a quick and robust method of mounting the COMMAND ECU.

Neodymium magnets with a countersunk centre hole of 7mm diameter along with 7mm fasteners should be used.

Rivnuts

Mounting with Rivnuts is another effective way of securing the ECU to the inner or outer wall of the tractor.

Care should be taken to drill an appropriately sized hole of the Rivnut, then use the expansion tool and fasten the ECU securely.

Mounting orientation

The COMMAND ECU should be mounted with the electrical connectors facing downward. Doing so will reduce any possibility of ingress by moisture or dirt. Do not mount the ECU with the connectors facing upward or to the side as moisture or dirt may accumulate and cause corrosion and/or connection issues.

Connecting the ECU Breakout Harness

Once mounted securely in place, the T3H-C002 should be connected to the COMMAND ECU at the black and beige paired ECU plugs. Push each plug in until a click is heard or felt and the pull on the plug lightly to ensure that it has mated correctly.

To unplug the ECU connection, press down on the tab at the top of the connectors (facing toward you with the ECU mounted in the direction specified above. While holding the tabs, pull the plug downward to disconnect.