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Old 01-05-2022, 09:08 AM   #1
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Holiday Rambler Owners Club
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2017 HR Endeavor Electrical issues

I have a 2017 Holiday Rambler Endeavor Class A that I am having some serious electrical issues and hoping someone has experienced the same issues. Various electrical systems cut out intermittently in the dash, such as radio, cameras, air brake buzzer comes on, entry steps and slides won't work to name a few. I have been in contact with the manufacturer REV have every electrical wiring diagram for the coach checked every connection, terminal, grounds etc to no avail. I contacted Freightliner to inquire about the RV Multiplexer which is designed to control all electrical signals in the dash area. Wanted to get an idea what issues could occur if the multiplexer is failing They were clueless as well. Has anyone experienced this type of issue before I was wondering if a reflash or replacement would solve the issue. What is the purpose of the RV Multiplexer> Any thoughts?
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Old 01-05-2022, 10:18 AM   #2
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First off, Welcome to IRV2!

Are you aware of the PDM (Power Distribution Module) recalls from Freightliner? There has been at least two recalls due to issues you are describing. Our friends have a 2017 Fleetwood Discovery and have had the same recurring problems.

Here's a couple of threads about the issue.
https://www.irv2.com/forums/f26/stra...er-556768.html

https://www.irv2.com/forums/f26/frei...re-413740.html
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Old 01-05-2022, 06:57 PM   #3
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Let Dan yes I am aware of the rear PDM recall. I have to schedule the repair , this is a different unit in the front compartment under the driver's area and powers stuff up front . The power loss is intermittent and I troubleshot what I could. I had a similar issue with my Ram truck and they had to refresh the BCM so I was wondering if it was the same deal. I asked Freightliner what does the RV multiplexer do and they were unable to answer.
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Old 01-05-2022, 06:59 PM   #4
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Thanks. If you resolve it, let me know and I'll pass the info along to our friends since they're having almost the exact same issues as you.
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