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Fog Lights - Daft Question

TimEwins

TimEwins

PCGB Member
Member
Hi All

Having found out how to switch on the fog lights on my Boxster (thanks Mark), I have an even bigger daft question ...

Should I have one, or two rear fog lights ?

If its ONE then I am OK .... if its TWO then I have a bulb gone

Even my old 924 had TWO rear Fogs ... so I am assuming TWO ?

Cheers

Tim
 
One matey. [;)]

Common question (and yes, the bulb is there in the non-working one - it's just not wired up).

The idea aparrently is so that it stands out against the brake lights.

 
Thanks again Mark :0)

Bit odd only having one rear brake light ... I thought only the cheaper end of the market had one light (saving money ?)

However we thought that might be the case as a) its just passed an MOT, and b) the working light is drivers side, i.e. middle of the road.

If there is a bulb in the other light cluster that is not connected, then I guess you always have a spare :0)

Question ... are the lights on the Boxster connected by a normal wiring loom, or a CAN Bus ?

Cheers

Tim
 
For post MY2003 cars they use a "MOST" bus (buss?)

Not quite sure how this extends out to the lights themselves though... May just be control modules?
 
Good old Wikipedia tells me that the MOST bus is for multimedia applications, so I guess not used for lights

The CAN bus is a serial bus that can be used to turn on lights, etc. Each item has a control module which has power, and a serial bus in/out which tells the module what to (its the Engineer in me :0)

I thought Porsche used CAN bus .... but perhaps I'm getting confused with MOST ... or perhaps thats 911's :)

Tim
 
The lighting circuits are all hard-wired. The CAN bus is used to pass signals around the DME, Instrument Cluster, Tiptronic, PSM etc.
 
You can wire up the other fog light if you wish , it just takes a bit of cable and a few minutes of time. I believe only one rear fog is present so that following drivers are not confused with the brake lights.
 
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