Euro spec taillight conversion problem.
Thread Starter
Instructor
Joined: Apr 2009
Posts: 155
Likes: 0
From: South of France
Euro spec taillight conversion problem.
Hello everyone.
I'm in the middle of changing my taillights for Euro spec ones and i have a problem, the turn signals are blinking fast.
At the moment i have 2 turn signal lamps on each side.
The EU model however only has one turn signal lamp on eache side, the other one is taken by the reverse lights (see 2nd picture below)
Now if i discard one of the turn signal lamps the turnsignals are blinking faster, indicating a bulb is missing.
I'm not sure how this system works if it's based on resistance, i've tried replacing the bulb with a 25ohm resistor but it doesn't work.
Is there any way to 'fool' the system so it thinks the bulb is there?
Many thanks for your help.
Xavier.
Right now if looks like this:
This is how it should look like:
I'm in the middle of changing my taillights for Euro spec ones and i have a problem, the turn signals are blinking fast.
At the moment i have 2 turn signal lamps on each side.
The EU model however only has one turn signal lamp on eache side, the other one is taken by the reverse lights (see 2nd picture below)
Now if i discard one of the turn signal lamps the turnsignals are blinking faster, indicating a bulb is missing.
I'm not sure how this system works if it's based on resistance, i've tried replacing the bulb with a 25ohm resistor but it doesn't work.
Is there any way to 'fool' the system so it thinks the bulb is there?
Many thanks for your help.
Xavier.
Right now if looks like this:
This is how it should look like:
Tech Contributor
Joined: Jan 2007
Posts: 19,493
Likes: 1,178
From: Dyer, IN
Hello everyone.
I'm in the middle of changing my taillights for Euro spec ones and i have a problem, the turn signals are blinking fast.
At the moment i have 2 turn signal lamps on each side.
The EU model however only has one turn signal lamp on eache side, the other one is taken by the reverse lights (see 2nd picture below)
Now if i discard one of the turn signal lamps the turnsignals are blinking faster, indicating a bulb is missing.
I'm not sure how this system works if it's based on resistance, i've tried replacing the bulb with a 25ohm resistor but it doesn't work.
Is there any way to 'fool' the system so it thinks the bulb is there?
Many thanks for your help.
Xavier.
Right now if looks like this:
This is how it should look like:
I'm in the middle of changing my taillights for Euro spec ones and i have a problem, the turn signals are blinking fast.
At the moment i have 2 turn signal lamps on each side.
The EU model however only has one turn signal lamp on eache side, the other one is taken by the reverse lights (see 2nd picture below)
Now if i discard one of the turn signal lamps the turnsignals are blinking faster, indicating a bulb is missing.
I'm not sure how this system works if it's based on resistance, i've tried replacing the bulb with a 25ohm resistor but it doesn't work.
Is there any way to 'fool' the system so it thinks the bulb is there?
Many thanks for your help.
Xavier.
Right now if looks like this:
This is how it should look like:
Thread Starter
Instructor
Joined: Apr 2009
Posts: 155
Likes: 0
From: South of France
Thanks for your answers. However, i'm not planning to change the entire wiring harness, it's too much of a hassle and in fact the lights will be swapped for the original ones once i've passed the test so it's only a temporarely solution.
At the moment i have 5702KA bulbs, which draw according to my measurements about 2amps.
I might try some heavier load resistors. Right now i tried 25ohm/25W resistors but they are too light.
6ohm/50W might do the trick.
I've also found this baby on the internet, not sure if it would fix the problem.
http://www.corvette-enhancements.com/c5_flasher_fix.php
At the moment i have 5702KA bulbs, which draw according to my measurements about 2amps.
I might try some heavier load resistors. Right now i tried 25ohm/25W resistors but they are too light.
6ohm/50W might do the trick.
I've also found this baby on the internet, not sure if it would fix the problem.
http://www.corvette-enhancements.com/c5_flasher_fix.php
Melting Slicks
Joined: Oct 2007
Posts: 2,383
Likes: 14
From: Kinston North Carolina
Quote:--Right now i tried 25ohm/25W resistors but they are too light.
6ohm/50W might do the trick.
--------------------------------------------------------
If you want them to draw more current, you need LOWER resistance, not higher! I read that as 60 ohm, if I read it wrong, then you got it right.
6ohm/50W might do the trick.
--------------------------------------------------------
If you want them to draw more current, you need LOWER resistance, not higher! I read that as 60 ohm, if I read it wrong, then you got it right.
Last edited by byronhunter; Sep 27, 2009 at 03:35 PM.
Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
Looks like you have a US spec car and the wiring is entirely different to a Euro spec
I have a US spec and modified mine for UK. You can buy a plug and play harness which solves all the problems. Try PFYC.com.
I have a US spec and modified mine for UK. You can buy a plug and play harness which solves all the problems. Try PFYC.com.
Last edited by DeeGee; Sep 27, 2009 at 03:50 PM.
Thread Starter
Instructor
Joined: Apr 2009
Posts: 155
Likes: 0
From: South of France
Morning guys,
Yes, the license plate backup lights go into the center two lights.
This is not really a problem to do, the bulb sockets fit with verry minor modifications.
The only problem is what to do with the two remaining turn signal indicators...
DeeGee, on your picture is that a 'UK' euro spec wiring harness you have? My Z06 is exactly the same as yours. Four amber turn signal lights, and license plate holder with the backup lights.
I sent a mail to PFYC if they can source me the eu spec wiring harness but i doubt it'll be the same one you used.
Now i managed to do the conversion, see picture below, but i can't tell you what i did with the turn signals, let's say the solution at the moment is not very pro
Also a pic of my new tires: michelins pilot sport ps2
Yes, the license plate backup lights go into the center two lights.
This is not really a problem to do, the bulb sockets fit with verry minor modifications.
The only problem is what to do with the two remaining turn signal indicators...
DeeGee, on your picture is that a 'UK' euro spec wiring harness you have? My Z06 is exactly the same as yours. Four amber turn signal lights, and license plate holder with the backup lights.
I sent a mail to PFYC if they can source me the eu spec wiring harness but i doubt it'll be the same one you used.
Now i managed to do the conversion, see picture below, but i can't tell you what i did with the turn signals, let's say the solution at the moment is not very pro
Also a pic of my new tires: michelins pilot sport ps2
Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
Morning guys,
DeeGee, on your picture is that a 'UK' euro spec wiring harness you have? My Z06 is exactly the same as yours. Four amber turn signal lights, and license plate holder with the backup lights.
I sent a mail to PFYC if they can source me the eu spec wiring harness but i doubt it'll be the same one you used.
Now i managed to do the conversion, see picture below, but i can't tell you what i did with the turn signals, let's say the solution at the moment is not very pro
DeeGee, on your picture is that a 'UK' euro spec wiring harness you have? My Z06 is exactly the same as yours. Four amber turn signal lights, and license plate holder with the backup lights.
I sent a mail to PFYC if they can source me the eu spec wiring harness but i doubt it'll be the same one you used.
Now i managed to do the conversion, see picture below, but i can't tell you what i did with the turn signals, let's say the solution at the moment is not very pro
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Racer
Joined: Dec 2006
Posts: 343
Likes: 1
From: LasVegas Nevada and NSW Aust
There are two ways to do the conversion so the signal does not flash fast.
1. you need to put in a load resistor in on both sides where you are not runing the turn signal. We use one here in Australia part number LR 12 which probably does not mean much to you but it works perfect.
2. Alternative method is put in another bulb socket with bulb in it and just let it hang inside the rear bumper.
If you need wiring instructons on how to convert US version wiring harness to suit Euro set up PM me your email and i will email you step by step instructions.
1. you need to put in a load resistor in on both sides where you are not runing the turn signal. We use one here in Australia part number LR 12 which probably does not mean much to you but it works perfect.
2. Alternative method is put in another bulb socket with bulb in it and just let it hang inside the rear bumper.
If you need wiring instructons on how to convert US version wiring harness to suit Euro set up PM me your email and i will email you step by step instructions.
Thread Starter
Instructor
Joined: Apr 2009
Posts: 155
Likes: 0
From: South of France
Hi Vet 005
i would be verry interested in receiving the instructions for converting the wiring. PM sent!
I also agree the load resistors are an easy fix and like you say there is loads of space in the rear bumper.
Like you probably guessed it right now i have the bulbs dangling in the bumper but i'm waiting for the load resistors. The ones i ordered on-line look exactly the same like the LR12's you mention (i looked them up on the internet)
The ones i ordered are 6ohms. So @12V they output 2A (12V/6ohm) which corresponds to 24W (P= I²xR)
i would be verry interested in receiving the instructions for converting the wiring. PM sent!
I also agree the load resistors are an easy fix and like you say there is loads of space in the rear bumper.
Like you probably guessed it right now i have the bulbs dangling in the bumper but i'm waiting for the load resistors. The ones i ordered on-line look exactly the same like the LR12's you mention (i looked them up on the internet)
The ones i ordered are 6ohms. So @12V they output 2A (12V/6ohm) which corresponds to 24W (P= I²xR)
Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
I fitted my own Euro lights to a US spec car so I know how to do the conversion. I've also seen many Euro spec cars here in UK. The danger is mixing the mods
Happy to help if you need it
Happy to help if you need it
Thread Starter
Instructor
Joined: Apr 2009
Posts: 155
Likes: 0
From: South of France
Hi DeeGee,
I'm unsure what my wiring harness is, it's probably something in between like you suggested. My Z06 was purchased in the UK, maybe you even know the owner (he is the first owner). As far as i know he's the only texan that can speak gaelic
The Z06 was originally purchased by him off corvettes of houston. They did the conversion to 'UK' DVLA standards before export. The Z06 was never officialy imported in France so no type approval is available in France -> SVA which turns out to be a lot trickier than in the UK. (in fact i already knew that) The standards are slightly different in France and more hassle but i think i'll manage for now. After the homologation it goes straight back to US spec with some extra's: ARH headers, heads, tune and some other goodies i have in mind.
Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
I re read the post and from what you say you have a US spec car. The fog light between the pipes makes that seem likely too. Like mine he probably modified the US wiring which is easy to do.
The PFYC harness is the same one as I fitted and is designed for the US spec wiring. It plugs into the connector under the frame near the rear passenger wheel well. It splits out the turn signals from the brake lights and provides four lamp holders for each function. You'd still have the problem of fast flash if you only use two T/S holders. The only way I know to fix it would be to fit bulbs in the redundant holders and zip tie them inside the rear bumper or fit resistors as you're trying to do.
Not sure if the flasher mod would fix it.
Heres the How To for the original fit for the harness:
http://www.c5forum.com/diy/reareuro/
The PFYC harness is the same one as I fitted and is designed for the US spec wiring. It plugs into the connector under the frame near the rear passenger wheel well. It splits out the turn signals from the brake lights and provides four lamp holders for each function. You'd still have the problem of fast flash if you only use two T/S holders. The only way I know to fix it would be to fit bulbs in the redundant holders and zip tie them inside the rear bumper or fit resistors as you're trying to do.
Not sure if the flasher mod would fix it.
Heres the How To for the original fit for the harness:
http://www.c5forum.com/diy/reareuro/
Last edited by DeeGee; Oct 1, 2009 at 01:39 AM.
