The entry step fuse on my Tour Master was in the block in the front driver side bay and well labeled in a block of several dozen fuses. I can imagine the BT is very different though...
Chuck
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2007 Tour Master T40C
Acura MDX toad
"It takes a great deal of time to recover from any improvement..."
Also, there's a harness that connects the step motor to rv batteries within about 2' of the motor. Make sure the plug hasn't become disconnected by the movement of the steps.
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2000 Tourmaster
Cummins M11 450 HP