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Old 01-18-2022, 04:39 PM   #1
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Holiday Rambler Owners Club
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2017 Holiday Rambler Freightliner RV Multiplexer

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 01-21-2022, 12:27 AM   #2
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Quote:
Originally Posted by SRudowski View Post
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?
All of those you mention are body side

Fccc has a Pam that controls dash functions, but sounds like rev has a bad ground
Try finding the grounds they installed and remove the paint under the connection

I highly doubt itís a freightliner issue
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