TUSCANY 2012 40 feet running lights stopped working

JV96

New Member
Joined
May 14, 2022
Messages
9
Hi, i'm Jacques
Wife Céline and Hi have a Tuscany 40 feet 2012, TROUBLE >The running light (Main light + Parking+Maker light) not working anymore.

I took a light of a marker light light on the front side, and put 12 volt from an another battery to the terminal of that light, AND every thing work fine from an outside 12 volt supply. ?

I was told bye RV worker that the signal that come from inside dash swith is send to a relay box to turn on the light.

OK but where is it ?????? I look under the dash does'nt find something. ????

HELP PLEASE ?????????? :banghead:
 
The Tuscany line runs on a freightliner chassis, and all the exterior lighting is controlled by the Sam chassis module, you can check fuses or relays in that module for marker lights, any other testing you would need to have a computer with the correct software to check the module itself and all in and out signals, it runs on a multiplexed system so don’t cut or tap any wiring or you risk burning the module.
 
Hi, i'm Jacques
Wife Céline and Hi have a Tuscany >> RV << 40 feet 2012, TROUBLE >The running light (Main light + Parking+Maker light) not working anymore.

I took a light of a marker light light on the front side, and put 12 volt from an another battery to the terminal of that light, AND every thing work fine from an outside 12 volt supply. ?

I was told bye RV worker that the signal that come from inside dash swith is send to a relay box to turn on the light.

OK but where is it ?????? I look under the dash does'nt find something. ????

HELP PLEASE ??????????
 
Last edited:
Did you check the front left compartment? Same compartment where your breakers are for the front seats. Several boxes there.
 
To IWM
I did while back without realy paying attention, This time i'll look again and see if i can definitely find something from what you told me.
(excuse my english, I'm from Québec french canadian.)
Let's you know.
Thanks
Bye From TuscJV
 
Dec. 12 2024
Jacques again
i change the headlight switch for a new one and still no marker (parking) light.

? Need help ?
 
Dec. 12 2024
Jacques again
i change the headlight switch for a new one and still no marker (parking) light.

? Need help ?

Does your coach have the smart wheel with the marker lamp button?

Still curious if you have the separate switch for marker lamps as mine does?
 
i know that my wheel as no control button on it, it does'nt control anything.
My Light switch is through the dash on the left side near the bottom of the dash and it's a push thru type with 2 clip on each side >Top and Bottom.

I don't exlactly know where is the relay for these marker light, But i know that there is a bunch of Relay, Connector + Fuse Box in the left front compartment under the floor of the driver seat.

Well there is a seperate switch for blinking the light when a truck overtake you.
? Could that be a problem ?

Help again.
Thanks
 
Last edited:
i know that my wheel as no control button on it, it does'nt control anything.
My Light switch is through the dash on the left side near the bottom of the dash and it's a push thru type with 2 clip on each side >Top and Bottom.

I don't exlactly know where is the relay for these marker light, But i know that there is a bunch of Relay, Connector + Fuse Box in the left front compartment under the floor of the driver seat.

Well there is a seperate switch for blinking the light when a truck overtake you.
? Could that be a problem ?

Help again.
Thanks

I would check out all light related switches including the curtesy switch to make sure you are passing voltage and amps through
 
I understand, but that's not easy to be able to look at the swich behind the dash, do'nt forget that it's an RV TUSCANY 2012 DIESEL 40 FEET pretty hard to look.

When i had tried the new switch, the wiring coming from the old switch was already unplug from that switch in the dash and it was no fun to reach and to be able to unplug. WOW.

Thanks
Bye for now
JV#96
 
Last edited:
I understand, but that's not easy to be able to look at the swich behind the dash, do'nt forget that it's an RV TUSCANY 2012 DIESEL 40 FEET pretty hard to look.

When i had tried the new switch, the wiring coming from the old switch was already unplug from that switch in the dash and it was no fun to reach and to be able to unplug. WOW.

Thanks
Bye for now
JV#96

I use a couple of mirrors and a bore scope camera on my phone to help navigate under the dash. You can pop off the dash, but it is tricky albeit sometimes necessary if you're up to something you just can't navigate.
 
No forget about under the dash, No room to complecated. i have another new switch coming mid January, i'll will see about that one. Anyway if can find the rite way to fix it, i'll find the +12v coming out the switch and use another type off switch to make it work. i'm not to dum in hooking up thing. Will see.

Thanks
Bye
#96
 

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