Power Issues 2004 Winnebago Brave 30w

[Peter B.]

Hello,

I need help,2004 Winnebago Brave, no power to slide out power buttons, to the leveling jack controll panel, to the driver side window and mirror switch.
Good battery, breakers ok, under hood and under cluster fuse boxes fuse are on.
Maybe they are more hidden fuses which I need to check.
Please help me where to start.
Thank you in advance.
Peter

[Morich]

I may get busy this morning, dealing with water heater prob. But I can start to chase out the details of the wiring as time allows.
First stop I find is power to the mirror control switch comes in on a wire labeled MD.

This chart to decode the ID
https://www.winnebago.com/Files/File...ical_guide.pdf

Click these snips to see better!

Using this diagram for info:
https://www.winnebago.com/Files/File...ire_144984.pdf


This wire MD gets the power from a relay under the dash pod.


There should be bat, standing on LD. When the ignition is turned on, power comes to this relay on WJ pin 30 of the relay mount. That power operates the relay and closes it to pass the power coming in on LD to MD to go out toward the mirror.

So one question would be if this relay clicks/operates when the ignition is turned on?
Does bat show on WJ pin 30 of the mounting when ignition is on?

This wire LD for power also feeds other things like the aux fans. Do they work as an indication you don't need to check that fuse?


EDIT: That wire LD also has to do with the radio power. Does the radio seem to work on both chassis battery and coach when you flip that dash switch?

[Morich]

A bit more info.
Does your dash lift up to let you see what they call "under the dash pod"?
There are fuses to power various things that we often call chassis items, "under the dash pod"!
One of those fuses is what feeds power to move/operate the relay for the mirrors and lots of other things.
I can't find a drawing to show where this is located other than the diagrams for wires.


I think this will be two sets of fuses under the dash pod fed by a 10 gauge wire. That is a lot of power and feeds many different things on the chassis system, so very important!
Assuming most of your electrical works, we might assume that wire BY is feeding the whole fuse group. Then there should be a fuse second down on the right side group that should carry power across to wire WJ. That wire WJ is what makes the relay work.
So if the relay is not clicking as you turn the ignition on, this fuse may be a problem! Check this fuse if the relay is not moving?

[tderonne]

Circuit breakers under the steps OK?

[Ray,IN]

Don't forget about the other half of a 12V circuit, the ground.