RV makers are often very secretive on wiring diagrams. If you have a test meter, test the voltage behind the breakers and fuses and then on the delivery side. Then check at the lights themselves.
https://www.google.com/search?q=2001+pleasureway+rv+wiring+diagram
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no info generic answer --- check rv is still level ---manual no switch someone tinkering with the system --get a multi and test fuses relays safety switches motor and harness