Question about Jensen Cars & Trucks

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Jensen RV cab radio does not have power in the key accessory mode.

I just bought an RV that has a Jensen stereo in the cab. It works great when the vehicle is running but it does not work when putting the key in the accessory mode? All other vehicle accessory mode items work fine like electric windows so it's not a accessory key mode issue. There is simply no power to the radio in accessory mode?

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  • Jensen Master
  • 3,452 Answers

Sounds like you need to land the Key On Power to a different point.

Posted on Sep 11, 2018

Testimonial: "Thanks... but I don't know what that means. Radio doesn't work on accessory mode but then turn to run mode or start the vehicle and it works fine but of course vehicles should not be left in the run mode for much time without the vehicle running as "non" accessory engine items will run when in the run mode."

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  • Dan Hooper
    Dan Hooper Sep 11, 2018

    Get yourself a 12v test light and simply test different fuses until you find one that is hot all of the time and make sure that the keep alive power is connected to a hot all the time circuit. This is what keeps your station memory. It should already be landed to a hot all the time circuit. Now the other power wire is your power on and this should be landed to a key on hot circuit. Just turn your key on and test circuits that have power with the key on and move the power wire to that circuit.

  • Wayne Weiler
    Wayne Weiler Sep 11, 2018

    thanks......I'll dig into it and try to find the correct power lead as it sounds like that is the problem. Previous owner/installer must have hooked it to the "run power" lead instead of the "accessory" lead.

  • Dan Hooper
    Dan Hooper Sep 11, 2018

    Yup, that is my guess.

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6ya6ya
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Posted on Jan 02, 2017

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ghost4548
  • 776 Answers

SOURCE: Electrical Issues

You can access wiring diagrams at http://www.hmaservice.com/ after registering (vehicle by VIN). After registering, go to ETM (Electrical Troubleshooting Manual). You'll need to be using Windows & Internet Explorer.

Posted on Jun 05, 2009

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SOURCE: Lost all electrical power while driving?

Sounds like a poor connection from either the positive or ground from the battery. Check connections at the battery, follow the cables to see if any other connections are loose.

Posted on Jun 24, 2009

SOURCE: Same issue no radio,windows, locks but dash board electric works

Try unhooking the battery, turn key on, leave door open, then connect battery, start engine immediately. The battery saver module thinks it's saving your power!!

Posted on Jul 25, 2009

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SOURCE: 01 Suburban engine, 8.1 liter, abruptly turns off

Its the crank sensor. There was a recall a few years back for 2001 8.1 liter engines crank sensor. Engine would shut off perodically and sometimes would not restart untill cool. Plus it just happened to mine. about a 350 dollar dealer fix.

Posted on Sep 08, 2009

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SOURCE: power window,radio and interior lights don't work

Hey man the box your looking for is under is behind the fuse box on the drivers side. You have to remove the lower box that is already exposed to get to the relay box behind it.

Posted on Aug 09, 2010

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