It has come to our attention that after the RP4-CH11 has been installed for a few days or up to two weeks it may no longer power up when the vehicle is started. While we are thoroughly researching the issue to find a permanent solution, we have a tech brief that provides an immediate resolution to the problem. Please follow the steps outlined in the attached document to fix your RP4-CH11 no longer powering up on vehicle start.
RP4-CH11 Stops Functioning After Being Installed
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Ernie, I spent much time figuring out this problem on my 2012 Dodge Grand Caravan. If I unplug the blue box, it would work for a few hours, turning on when I start it. Then the next day, the radio wouldn't turn on. I narrowed it down to the blue box as installing the original Dodge radio did not have the problem. Figured it was a canbus problem, but that's where I started searching the Internet. Thank goodness I found your article! I can't thank you enough. Jumper wire installed and all's good. Many many thanks for publishing the fix. Aloha, James
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