Rear Fog Lamps

[isail1]

New owner of a '03 Boxster with two questions about the rear fog lamp.

#1 Is it possible to add a second lamp? The right hand rear lamp assembly has a bulb placement for a rear fog and it appears to be wired. I did a continuity check between the left hand side fog and the right hand side "fog lamp position" and the circuit is not complete. Can the right hand side be easily connected or did Porsche cut the wire in an inaccessible location? I realize that I could just bridge the gap with some vampire type wire connects... but I would prefer not to.

#2 Is there a simple way to change the sequence in which the fog lamps are lit? The pull-out switch lights the front fogs first and then the rear. Could this be switched so that the rear fog is lit first?

Probably curious why I want to do this. Well, rear fog lamps are a great way to keep tail-gating SUV's off your tail

thanks

[Tool Pants]

Like you noted, there is a bulb socket and a wire to it but there is no power. We traced it back to the headlight switch but it was not worth further investigation.

You simply run a jumper wire from the wire from socket that functions to the wire that does not. Then put in a bulb. Jeff

[isail1]

Thanks, I thought it might not be a simple solution. I'll do the "jumper wire" for the additional light.

How about question #2... any thought on this? Maybe this could be done by trading the switch wires at the appropriate relay. What do you think? BTW, has anyone ever mapped out all of the relays on the Boxster? There are lots of them, including four (if I recall correctly) behind a panel in the rear trunk left hand side.

[Tool Pants]

I would think it would be a simple switch of 2 wires that run from the switch to the relays. All this kind of info is in the wiring diagrams. There is also a page for the relays and other pages that show how they are wired - no need to map anything.

[GregKelley]

I did some extensive tracing and work on this. After talking with other people, I found out that all German cars that have rear fog lamps only have the left one lit up. Its the law over there I guess.

You would have to trace and jumper the wire at the headlight switch.

[frogster]

… I found out that all German cars that have rear fog lamps only have the left one lit up.  Its the law over there I guess.

<{POST_SNAPBACK}>

not ALL german cars have one and it is not the law. my bmw X5 has two as well as my other bmw's. many european cars have two.