looking for a specific wire.
Thread Starter
Former Vendor
Joined: Nov 2005
Posts: 8,995
Likes: 2
From: Spring Texas
St. Jude Donor '08
looking for a specific wire.
I"m looking for a wire (well 2 one for each side) that comes one ONLY with the turn signal. I find if i tap into the rear i get power with the brake lights and if i go for the front i get power with the DRLs.
Suggestions?
Suggestions?
Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
If I read your post correctly, not sure you can do that without a major mod.
At the front:
My car is modified to meet Brit standards and it does just just what you require but it was a major mod. the T/S signals act as just T/S and the DRL and parking functions are disabled in that bulb.
To do that I had to do the relay mod to disable the DRLs although pulling the A2 fuse would still work.
The T/S bulb is a dual filament bulb with 3 wires running to the bulbholder
a blue/white wire which is the live feed for the T/S filament
a brown wire which is the live feed for the parking lights
a black wire which is the common ground
By cutting the brown wire right you disable the orange parking light function leaving a dedicated orange T/S. However, if you don't disable the DRLs they will still light the bulb.
At the rear:
If you install euro tail lights, you fit a plug and play harness that separates out the stop/tail and T/S functions onto separate bulbs. To complete the mod you snip a white wire under the knee bolster which splits out the different functions. Once you've done that mod you could tap into the T/S circuit (not sure of the color of the wire) at the rear and run a wire to ground.
At the front:
My car is modified to meet Brit standards and it does just just what you require but it was a major mod. the T/S signals act as just T/S and the DRL and parking functions are disabled in that bulb.
To do that I had to do the relay mod to disable the DRLs although pulling the A2 fuse would still work.
The T/S bulb is a dual filament bulb with 3 wires running to the bulbholder
a blue/white wire which is the live feed for the T/S filament
a brown wire which is the live feed for the parking lights
a black wire which is the common ground
By cutting the brown wire right you disable the orange parking light function leaving a dedicated orange T/S. However, if you don't disable the DRLs they will still light the bulb.
At the rear:
If you install euro tail lights, you fit a plug and play harness that separates out the stop/tail and T/S functions onto separate bulbs. To complete the mod you snip a white wire under the knee bolster which splits out the different functions. Once you've done that mod you could tap into the T/S circuit (not sure of the color of the wire) at the rear and run a wire to ground.
Last edited by DeeGee; Apr 8, 2007 at 04:53 PM.
Thread Starter
Former Vendor
Joined: Nov 2005
Posts: 8,995
Likes: 2
From: Spring Texas
St. Jude Donor '08
There has to be some wire (even if it's in the dash) that's signal only. I only need a minimal amount of amperage as i'm only running 2 small LED bars. ( 0.5 amps at the very most)
Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
Looking at the wiring diagram, the T/S wires come from the "Instrument Panel Electrical Center" (presumably the passsenger footwell fuse box) and are coded Lt Blue for the left T/S and Dark Blue for the right T/S. They feed into the T/S selector stalk in the dash area and ground at Ground Distribution Cell 14. I guess you could splice in at the dash and see if you get the same issue with DRLs/park lts energising the circuit. Looking at the digram you should be OK.
I'm afraid I'm in uncharted waters though so best of luck.
