Near Intersection of I-35 & I-90 Southern Mn. | This diagram should be very helpful. Now that the old Liquid Product Control Module has been replaced with the L2, I suspect there is less demand for these drawings although the system works very well.
As I'm certain you understand the top part of this page refers to the tractor portion. It would consist of an Ag Leader display listed here as an Insight since the Insight was current at that point in time. An Integra or InCommand 1200 would work fine also. I strongly suspect that a GO display could be used also.
I mentioned earlier about a switch box arrangement. This drawing shows using an Auxiliary Input Module and a "dumb" switch box which they show below the display (it could be mounted elsewhere). Another switch box arrangement would be to use Ag Leaders SC110 CAN switch box. It is functionally equivalent. It contains the Auxiliary Input Module's electronics along with 11 switches all in one enclosure.
You would use the Auxiliary Input Module and separate dumb switch box OR the SC110 CAN switch box. You must use one or the other but never both at the same time. The large connector in the middle of the page would be the disconnect point for a pull-type implement such as your sprayer.
The bottom part of the page shows the Liquid Product Control Module which would be mounted on the pull-type sprayer itself. The large connector mates with the connector coming out of the tractor. That connector has a pair or two of large pins for one or two sets of 12 Volt power to run the module and power the section valves since some ball valves require a constant power source. That connector also contains 4 pins for the CAN communication between the devices in the tractor and the module on the sprayer.
Connections need to be made to/from the Liquid Module to a flow meter and control valve. Since you have a Raven flow meter and a Raven Control valve you would pick that choice from Table 1.
You would also need a boom section cable. Some choices are listed in Table 2. The choice here depends on the brand of section valves that you will be using. Note the section valves could be Raven but do not need to be. Since there is no standardization between the various brands of section valve wiring, several but not all choices are available. I typically use BanJo. According to this chart you will likely have more boom valve branches than you actually need. When I worked as a Tech we just made our own with the desired number of branches. This is not terribly difficult but does require access to the proper connectors, pins and wiring patterns.
Note that NO Raven cables are used with this arrangement. The Ag Leader choices are produced (or copied by others) to allow various brands of flow meters, control valves and section valves to be used. Ag Leader does not produce nor sell flow meters, control valves or section valves. They do provide cables to allow them to be connected to their systems.
You ask about an electronic pressure sensor. An electronic pressure sensor is optional. The Liquid Product Control Module is volume based and makes no decisions based on pressure. It can display pressure if an electronic pressure sensor is installed. Actually three separate pressure sensor could be used to monitor but not control, the pressures at 3 locations. They might be boom pressure, agitation pressure etc.
Personally I've never installed an electronic pressure sensor in any of my own systems. I do install a common pressure gauge so I can view the pressure visually which I use as a verification that all is well. With a pull-type sprayer, I just plumbed in a pressure gauge into the spray line right before the section valves. On my planter I use Wilger flow columns and have a pressure gauge mounted in the feed line. Again the system does not utilize any pressure information with the Liquid Product Control Module since it is completely based on volume.
Some systems such as the Deere system on a 4720, use a combination of volume and pressure in their operation and an electronic pressure sensor would be required. Those systems often can use the pressure reading to set a low limit when it is necessary to slow down considerably for an obstacle such as waterways or power poles.
The Liquid Product Control Module allows the operator to set in a minimum flow rate/minute that effectively sets a low limit for those situations. Over application is the result with either approach but that is generally more desirable than having a poor pattern or tip check off during those brief periods of low ground speed. When this situation occurs, the display will flash a warning that the low limit is in effect and over application is occurring. Once the ground speed returns to a more normal speed, the low limit is no longer in effect and the alarm clears.
I believe this approach would be the best plan for your situation. Using the Raven Implement cable, Raven display cable and Ag Leader Raven adapter cable would work but this is a much cleaner approach. If in the future you should want to do something with another implement such as a fertilizer bar, planter etc., your tractor would be ready to go. The implement would contain the module(s) that are appropriate with some of the same type wiring to the hitch. It would be very easy to switch from one to the other. You would just connect the other implement and cable and choose the appropriate operating configuration on the display.
The Liquid Product Control Module has an implement switch port that MUST be used. Since you will not have a real implement switch on a pull-type sprayer, the implement switch port must have a jumper installed. With my planter, I do use an actual implement switch so the system "knows" when I raise the planter. With my Hagie, I do not have an implement switch so that port is jumpered.
Any other questions, fire away.
Edited by tedbear 3/7/2026 09:13
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Ag leader liquid control harness question
