An fg25t-11 is an old carbureted truck, no electronics at all. The -16 and -20 trucks have an engine ecm but no electronic trans control. The obd II scanner with Komatsu dongle works on earlier -16/-20 but not the new ones, not sure why. Komatsu will only sell the scan tool kit to dealers and it's around $5k. Your best bet is to use the gas pedal procedure.

Do you have the link or part number/ name of the end connector? I'm trying to make one.

the correct pn is 3EA-55-38680. I've ordered a couple thru TVH.

Ed, I too need the adapter cable for a Komatsu.
you stated cable # is 3EA-55-36680. Local dealer says this is not a good number. Any suggestions?...Mark (864)219-8446
I'm a Jersey boy now residing in the Carolinas

Hi Rich
You can get from a a komatsu dealer.Or you can make it up with a OBDII connector and the cap off plug from a forklift. Call me at 1-201-832-1606 during the day eastern time
thanks
ED

im in Houston. tool king where did you purchase yours? I need help diagnosing a fg25st-16. let me know thanks.

you can order this Intermediate Cable Part No. # 3EA-55-36680 from komatsu to let you any obdII scanner for the engine.If you have latop you can also use service tool kit / Part No. 3EB-97-50010 for engine dianostics or you will the hand set with the k21/k25 cartridge.