Way late to help but this is more for future individuals.
I just fixed my neighbors 323 with a non working rapid travel mode and the service manual doesn't make it that easy. So here is what I learned.
So there is a relay (manual says 2 speed module, parts people say relay, confusing right?) and it is known as a flip flop relay (12v impulse turns it on and latches on, another 12v pulse will turn it off) this is what the button on the blade control runs. Chances are if the green indicator light comes on this is working. If you order this from Bobcat it was around $95-160CAD or order a generic flip flop relay off amazon or ebay for $20. This is located under the seat just under the blade control lever. There is actually 2 there but this is the smaller one closer to you. The manual shows a second relay tied into the system this a generic nothing special 12v relay. Check that as you would any relay.
Next is what the manual calls a travel switch or a 2 speed switch or a 2 speed boost switch. These are a ball switch on your hydraulic valve bank. These are a simple normally open switch. When your travel controls are in neutral the ball sits in a detent to keep high range disengaged (my guess is so you are not trying to increase hydraulic flow without it going anywhere). As soon as you move the travel stick in either direction the detent moves away from the switch causing it to engage and close the circuit. This was my problem both had gone. Easy to test there is a wire under the floor right on top in the middle. If you lift the forward floor where all the controls go through you will see it split and go to valve banks where the travel levers go. Simply unplug the connector, plug in a multimeter, set it to check continuity, move each lever and see if you get a reading. If not you found your problem. This is where I can save you money. Each switch from Bobcat is $140CAD, and each side is listed different (one is kit only $243CAD, other shows switch without kit) but both are the same. So this is a simple 9/16"x18 ball switch I got the same switch from Lordco for $17each. Cole Hersee makes one (part# 91113-COL) you have to cut the wire off and attach it but hey ill take the savings. The other option is a "Pollak Ball Switch 21-562-P" it's $15USD and "LOOKS" to have the same harness on it.
Short of that there are the actual hydraulic solenoids. These are located in a large valve body in the rear engine compartment. open the back and chances are you will see the block containing 4 solenoids. There are 2 that control this (2 speed solenoid and 2 speed boost solenoid, my guess this is there way of saying right and left). At the electrical plugs you will see colour zap straps. The one with yellow is the 2 speed solenoid, the one without one is the 2 speed boost solenoid. If you check for power just remember the button has to be on and a travel lever has to be in one direction.
Hope this helps someone.
