on the fly 4wd won't engage on 2000 Ford F-250 Super Duty

has manual hubs, dash guage incicator lights when started and cycles out, switchlight dosen't light, hooked up scanner, show switch cycles from 2wd to 4wd,4wd off,4low off, 4wd drive power on, 4wd plat A open, b open, c closed, d closed BOO off, cw shift motor off, ccw shift motor off clutch lock disengaged, dtc count 6 11.9v gem, checked fuses all test good any thoughts

by in Grand Ledge, MI on February 24, 2012
1 answer
ANSWER by , December 29, 2012
rubber hose from hub to fram r bad put new one on get them a ant parts store