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Country coach switch lighting
My switches in the water bay do not illuminate when I open the bay door. I have read they are tied to a fuse somewhere other than the front of the ECC. I looked everywhere. If they are behind the ECC on the motherboard, I’m hosed. I’d need to pull the joey bed to access them. If that’s the case, I live with it until I pull the bed.
Bottom line: My switches all work. They just don’t illuminate. Where is the fuse?
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7 Replies
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Hey Chip, the switches ground is tied to the plunger type switch on the bay door frame work. The little round pin switches that push in an out as the bay door makes contact, when the door closes or opens the circuit when the door opens.
Wiggle the pin around and clean where the wire crimped on the end of the pin is making good contact with the metal bracket the pin makes contact with.
If that is not it there are two 5 volt power supplies soldered onto the mother board inside the ECC cabinet. You would need to remove the plastic cover on the cabinet and remove the wing nut and swing the mother board out to see the backside where the power supplies are soldered onto the board.
There is a very small wire coming out of the top and one out the bottom of the power supply that are soldered onto the board. All the vibrations in the cabinet while driving cause the little wires to break and lose contact with the board, there fore no lights.
Also in reference to your switch positions, on my CC I think, this is the switch call outs, from memory now.
Left to right.
1 Water Pump
2 Fresh Water Drain
3 Left Curb Lights
4 Right Curb Lights
5 Black Tank Drain
6 Gray Tank Drain
The switch that had the protective cover on it on mine was the black tank drain.
The labels that go inside the cover of the switches I have no idea.
Might email Miles Circo and see if he has any in all the stuff he got from CC.
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If my memory serves me correctly, the power for those lights comes from the bay light switch or sometimes from a micro switch tied to the door opening. Does the bay light work in that bay?
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The pin switch is the ground for the light circuit on the switch panel.
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Mikee & Buddy
you are correct, the door plunger switch does provide the contact. When I turned on my bay lights (passenger side panel) and went out to the bay. Open the door and my strip lights illuminate. I then pushed on the plunger switch and the strip lights turned off. Released the plunger and strip lights illuminated. The sunmullion switches did not illuminate.
At this time I cannot access the back of the motherboard. I have a joey bed. I cannot swing the card rack open without hitting the bed rails.
I will try 2 things.
1) see if my P1 & P2 harnesses are inverted. I’ll swap them.
2) p1 & p2 have 10 pin harness and the board has 8 pins. I have the harness centered, I will move them over a pin.
if neither one works, i’ll Live with it until I can pull the joey.
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All Fixed!!!
the problem stemmed from the harness placement. I received a picture of the panel and harnesses from another XL owner. It turns out that the grey and purple wires should not be hooked to a pin.
i reset the harnesses to match his picture and the sunmullion’s illuminated!!
i also found a cover for the last switch. It was in a grab bag of new sunmullion’s I bought from Miles a few years ago.
thanks
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Chip, on all those plugs there may well be more sockets on the cable connector than pins on the switch plates.
Just remember that on all the connectors there is a black wire at one end or the other. That is the ground pin so if you can match it up with the ground pin on the board that should provide the correct orientation for the plug to fit on the boards.
Having said all that I think I am correct, been a long time since I had to do anything to my switches.
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Buddy
you’re spot on.
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