cargo lamp switch
Join Date: Jan 2008
Location: North Plains, OR
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Re: cargo lamp switch
Originally Posted by clem05XF
My roadster cargo area lamp does not work. I found the lamp in the right side of the cargo area but have not found where the switch is to turn the lamp on and off.
Can someone enlighten me?
Thanks
Can someone enlighten me?
Thanks
1, Is the bulb OK?
2, Any power at the socket?
3, Any power at the switch?
etc.
Re: cargo lamp switch
I'm changing my trunk light as well and my bulb is burnt out and I do have power to the socket. What I would like to check is if the switch is turning off the light when the trunk is closed. I don't think I can fit in the trunk. Some times the Germans over engineer things. I know you've heard that before, I didn't just make that up. I looked up the bulb on Osram Sylvania and the bulb number is 6418. The one I took out is a Phillips K25673. I know before I bought the car that it either had a dead battery or the battery was disconnected, so I would like to be able to check to see that the light is going off and not constantly draining the battery when not in use.
Re: cargo lamp switch
I'm changing my trunk light as well and my bulb is burnt out and I do have power to the socket. What I would like to check is if the switch is turning off the light when the trunk is closed. I don't think I can fit in the trunk. Some times the Germans over engineer things. I know you've heard that before, I didn't just make that up. I looked up the bulb on Osram Sylvania and the bulb number is 6418. The one I took out is a Phillips K25673. I know before I bought the car that it either had a dead battery or the battery was disconnected, so I would like to be able to check to see that the light is going off and not constantly draining the battery when not in use.
Re: cargo lamp switch
I'm changing my trunk light as well and my bulb is burnt out and I do have power to the socket. What I would like to check is if the switch is turning off the light when the trunk is closed. I don't think I can fit in the trunk. Some times the Germans over engineer things. I know you've heard that before, I didn't just make that up. I looked up the bulb on Osram Sylvania and the bulb number is 6418. The one I took out is a Phillips K25673. I know before I bought the car that it either had a dead battery or the battery was disconnected, so I would like to be able to check to see that the light is going off and not constantly draining the battery when not in use.
Here's an idea : put your cell in video mode - lay it on the trunk floor ( camera lens up ) and shut the lid.
Re: cargo lamp switch
I did think of the video idea and I think I will try it, but I have to buy a new bulb first. Talk about stupid. So what I just did was to open the trunk and with my finger tripped the latch as though it was closed and then I checked the socket and there was still power, so I waited a couple of minutes to see if it was on a delay like the dome lights (same fuse, same circuit) still power. I'll be buying a new bulb and a new 10A red fuse tomorrow. All this messing around I just blew my #9 10A fuse and I don't have a spare. When I bought the car there was a package of 15A fuses in the glove box, so I asked the seller what the fuses were for and he said he didn't know that they were there when he bought the car. I think the 15A fuses were bought by the original owner getting the car ready to sell and was trying to get the glove box light to light. At first I was chasing the glove box light but I did read in this forum that the glove box light only works when the key is ON. So anyway I checked that fuse and found that the glove box fuse was replaced and appears that it is the only one replaced.
Join Date: Jun 2009
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Re: cargo lamp switch
I'm changing my trunk light as well and my bulb is burnt out and I do have power to the socket. What I would like to check is if the switch is turning off the light when the trunk is closed. I don't think I can fit in the trunk. Some times the Germans over engineer things. I know you've heard that before, I didn't just make that up. I looked up the bulb on Osram Sylvania and the bulb number is 6418. The one I took out is a Phillips K25673. I know before I bought the car that it either had a dead battery or the battery was disconnected, so I would like to be able to check to see that the light is going off and not constantly draining the battery when not in use.
Second, I can't imagine the light is draining the battery, because the switch provides a signal to the BCM, same as the door switches, the BCM in turn turns the light on and off. Remember, the lights time out, and this is how it works - there is no direct connection between the switches and the lamps, it's all done by the BCM.
The dome and trunk lights (in a Roadster, anyway) go on and off together no matter WHAT door is opened, incluiding the trunk.
And I'll award my "Post of the Day" award for anyone who can find the damn swich in the trunk that turns the light on and indicates to the BCM that the top can be raised and lowered (it appears to be the same switch). I have NEVER found that damn switch.
EDIT: What I am saying (and I'm haveing a migraine attack so I can't see well) is that the switch in the trunk tells the BCM that the trunk in open, or partly open. It is this indication that causes the BCM to turn the lights on AND to prevent opening or closing of the top while the trunk is open or ajar.
Last edited by pizzaguy; 05-28-2012 at 07:24 PM.
Re: cargo lamp switch
[QUOTE=
And I'll award my "Post of the Day" award for anyone who can find the damn swich in the trunk that turns the light on and indicates to the BCM that the top can be raised and lowered (it appears to be the same switch). I have NEVER found that damn switch.
[/QUOTE]
OBOY, OBOY !!! I win the prize !!!
The switch is in the trunk latch.
1. open the trunk.
2. eyeball the light ( on, right ? )
3. push the little latchey thing till it clicks - light still on.
4. push on latchey thing again while also pulling up on the trunk release, it will then go to the 'locked' position, and the light will go out.
( pull the release and all will return to normal, shut the trunk )
And I'll award my "Post of the Day" award for anyone who can find the damn swich in the trunk that turns the light on and indicates to the BCM that the top can be raised and lowered (it appears to be the same switch). I have NEVER found that damn switch.
[/QUOTE]
OBOY, OBOY !!! I win the prize !!!
The switch is in the trunk latch.
1. open the trunk.
2. eyeball the light ( on, right ? )
3. push the little latchey thing till it clicks - light still on.
4. push on latchey thing again while also pulling up on the trunk release, it will then go to the 'locked' position, and the light will go out.
( pull the release and all will return to normal, shut the trunk )
Re: cargo lamp switch
It HAD to be in the latch - there were no other options, unless there were a mercury switch, and I thought that unlikely.
Also, the service manual mentions : "(TRUNK LATCH UNLOCK SIGNAL/TRUNK LATCH
LOCK SIGNAL)"
Last edited by ala_xfire; 05-28-2012 at 08:33 PM.
Join Date: Jun 2009
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Re: cargo lamp switch
You will find that the service manual is very informative at times, and very FRUSTRATING at other times. I have printed out about 30% of it so far, amazing it's over 3800 pages long.
(And I'm taking your word for it, Alax - I don't have the emergency release anymore, I disabled it. But your post makes perfect sense, and I was suspecting such was the case, but had never proven it.)
Last edited by pizzaguy; 05-28-2012 at 11:25 PM.
Re: cargo lamp switch
CORRECTION!! I just bought the Sylvania 6418 bulb and it is to short. Most of the stuff I've been looking up on the internet crosses to the 6418 which is 41mm long and the Phillips bulb that came out of my trunk is 44mm long. The xf parts list says a C5W and when I look it up it references the 6418. So at the moment I don't know what the bulp number is.
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Re: cargo lamp switch
I finally got a bulb, it is a Wagner 17314, it was crossed with the Phillips 12866 number. It is about 1mm shorter than the Phillips I took out but it will work with a little bending, it flickered when I first put it in so I bent in the contacts a bit. The 6418 was actually about 37mm, way to short. I then did the video camera trick and it worked, the light goes out right-a-way.