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Spoiler Switch Question


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I added a spoiler switch to the dash. The switch doesn't illuminate when the car's lights are turned on. What do I need to do to have the switch light up when the car's headlights are turned on? There are a total of 5 connectors in the back of the switch. Currently only three are being used. Any suggestions? Thanks in advance.

Pat

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I ran 2 wires from the spoiler switch to the PSM switch to get lighting power. The wire colors are a bit different depending on year.

Mine is an '04 Carrera, and here's how I did it. The spoiler switch has 2 unused male connectors. You need to buy some wire and female connectors that will fit the male connectors on the back of the spoiler switch (I got them at Radio Shack).

Cut 2 lengths of wire, strip both ends of each, crimp on 1 female connector to one end of each, and connect the female connectors to the 2 outside unused male connectors on the spoiler switch. One is the LED power and the other the ground. Remove the plug from the back of the PSM switch and insert the stripped ends of the 2 wires, one into the ground wire (blue & grey w/ brown cross stripes) plug, and one into the common/power wire (blue & red) plug. Then plug back in the PSM connector, with the 2 stripped wires held in place. Test it works before fully snugging up and putting back together. If it doesn't work (or the PSM LED indicator light is always on), reverse the wires and try again.

On the back of the PSM switch, there are 4 vertical male tabs across the top, and one horizontal male tab at the bottom. Looking at the PSM switch from behind, the ground wire is the far right top vertical tab, and the common/power wire is the horizontal tab at the bottom.

Edited by Poursha
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Poursha,

I have a 2000 C4. I also have an interior lighting switch between the PSM and spoiler switch. Probably better to run it from the interior lighting switch, agreed? Please let me know how you did. Thanks so much.

Pat

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  • 4 weeks later...

Hey Poursha, Good one. I did this mod a few weeks back and I meant to ask how you got it to light up. I will get to this tommorow.

Question: I have noticed that when I am driving along (below 75mph) and I switch the tail up, it seems to have a mind of its own in regards when to retract the tail again. Sure I can manually retract it. But if I drive around and happen to look in my mirror, it has sometimes retracted all on its own. I know that in the normal case, it auto lifts at 75mph and auto retracts at 38mph (I think). But if I manually lift it with the switch it sometimes stays up all day and sometimes it might auto retract after a while. This normally happens while street driving (i.e., below 75mph). Any ideas what should happen if you manually lift it?

BTW: Loren, Jeff, when I did this switch install I took a pile of pictures in an effort to put a DIY page together. Is this something that would be useful?

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