B series rear hydraulics error code 28-03

[yellowdogsvc]

I just sold my 2005 B series with rear pto and rear hydraulics. The new owner is getting the code 28-03 and can't get the rear hydraulics to engage. I'm not anywhere near him and don't have the service manual anymore.

Anyone with a B series seen that code? When I sold it, we checked everything and it worked. I'm thinking a relay went bad or a switch got disconnected. Front hydraulics work fine and PTO spun when we sold it and the dump bed worked fine too.

 

[SSdoxie]

28-03 is Diverter Solenoid Error Off. Could be wire connection, open circuit in the solenoid coil, or could be happening when oil is cold. This solenoid also has a position switch that verifies solenoid has activated and is diverting oil to the rear auxiliary, if oil is too cold the position switch doesn't move quick enough and the main controller sends the error code.
Try running the machine for a few minutes, raising loader up and down and triggering the front aux. button to send oil over relief to warm oil in that diverter valve then try engaging the rear.

 

[yellowdogsvc]

Doxie. I will pass that info on. The machine worked fine in S. Texas but when he went north, started having problems. I appreciate the starting point to check things.