Daytime Running Lights - US Spec car - who has done it?
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Joined: Oct 2003
Posts: 7,210
Likes: 17
From: Nova Scotia
I had been corresponding with Matt777 at the time on his issue which was a lot like yours: voila, I inadvertently created the same mess for me
.Here's a clip from the solution:
"just installed a 35W digital HID kit today ( 5000K) .... and immediate %$#@& when the first converted unit was fired - no fog DRL's.
Sound remotely familiar?
Installed the second light and ran through all possible headlight and fog switch settings ..... DRL's dead!
To jump to the success part, I pulled relay R31 and installed a jumper from 30 to 87 ....voila - fog DRL's are back as before, and everything operates as it should ( fogs are always on with key in 'run', even before the engine starts). I also tried this on R34 , as both are in the fog circuit- no dice.
Why???? I'll have a shot of single malt tonight to help me figure a plausible answer, for now, I come up dry: obviously, something is draining the 85 to 86 trigger circuit of relay R31, or so I assume because the jumper restored correct operation.
The only obvious change on doing the install is that the normal grounding of the lo beam H1 bulb is moved to the ballast .... so perhaps that breaks the normal grounding of R31 .....""
Anyway, a thought that may work.
Drifting
Joined: Nov 2003
Posts: 2,817
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From: Alberta, Canada
Thread Starter
Rennlist Member
Joined: Feb 2005
Posts: 1,269
Likes: 80
From: Lexington, KY
To jump to the success part, I pulled relay R31 and installed a jumper from 30 to 87 ....voila - fog DRL's are back as before, and everything operates as it should ( fogs are always on with key in 'run', even before the engine starts). I also tried this on R34 , as both are in the fog circuit- no dice.
Why???? I'll have a shot of single malt tonight to help me figure a plausible answer, for now, I come up dry: obviously, something is draining the 85 to 86 trigger circuit of relay R31, or so I assume because the jumper restored correct operation.
The only obvious change on doing the install is that the normal grounding of the lo beam H1 bulb is moved to the ballast .... so perhaps that breaks the normal grounding of R31 .....""
Anyway, a thought that may work.
Why???? I'll have a shot of single malt tonight to help me figure a plausible answer, for now, I come up dry: obviously, something is draining the 85 to 86 trigger circuit of relay R31, or so I assume because the jumper restored correct operation.
The only obvious change on doing the install is that the normal grounding of the lo beam H1 bulb is moved to the ballast .... so perhaps that breaks the normal grounding of R31 .....""
Anyway, a thought that may work.
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Rennlist Member
Joined: Mar 2004
Posts: 206
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From: Amelia Island, Florida
I have the same set-up as described. NO problems and going on 3 years.
HID low beams, and DRL with the stock fogs.
The install with the HID's allowed me to slide the ballast inside the housing and use the bullet connector ground. Is that what most have done?
The DRL fogs was the simple fused jumper.
If you would like I can double check the jumper connections and get back to you.
Let me know, and good luck sourcing the problem.
Neil
HID low beams, and DRL with the stock fogs.
The install with the HID's allowed me to slide the ballast inside the housing and use the bullet connector ground. Is that what most have done?
The DRL fogs was the simple fused jumper.
If you would like I can double check the jumper connections and get back to you.
Let me know, and good luck sourcing the problem.
Neil
Thread Starter
Rennlist Member
Joined: Feb 2005
Posts: 1,269
Likes: 80
From: Lexington, KY
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Advanced
Joined: Aug 2013
Posts: 83
Likes: 0
From: Montreal, QC
Ok! Provincial mechanical inspection required DRL and I can confirm that "pull fog light relay and replace it with an in-line fused jumper between #30 and #87 to turn the fog lights into DRL's." works like a charm!!!
Really a 5 minutes job. Thanks Garth S.
PS. Car is US-Spec.
Really a 5 minutes job. Thanks Garth S.
PS. Car is US-Spec.
Last edited by Cabarnak; May 21, 2014 at 06:05 PM. Reason: grammar + added US spec mention
Racer
Joined: Apr 2011
Posts: 416
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From: Space Coast, FL
I know this is an old thread but it was recently resurrected. If you have the Turbo S air scoops from Gert then you have no fog lights. The Turbo S scoops connect to the parking lights. The 993 Turbo S did not have front fog lights, so the scoops only have one light in them which is the parking/positioning light. I have always wondered why the Turbo S scoops are advertised as scoops/fog lights, since they are not fog lights, and don't even connect to the fog light connectors.
Advanced
Joined: Aug 2013
Posts: 83
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From: Montreal, QC
I received a couple of PMs asking for more details...here is a picture of the pulled R31 relay (foglights) from my 1997 TT (US-Spec).
So in short the steps were:
1 - Pull foglight relay (R31)
2 - Find pins #30 and #87 (small numbers next to pins)
3 - Connect 2 pins with a small copper wire
4 - Put back in place
And voilà, the foglights turn on when you turn on the car and you can pass Canadian mechanical inspections
So in short the steps were:
1 - Pull foglight relay (R31)
2 - Find pins #30 and #87 (small numbers next to pins)
3 - Connect 2 pins with a small copper wire
4 - Put back in place
And voilà, the foglights turn on when you turn on the car and you can pass Canadian mechanical inspections
Rennlist Member
Joined: Jul 2002
Posts: 16,559
Likes: 94
From: Bend, OR
I meant on the jumper. I think the procedure is for a fused jumper-yours looks to be a simple piece of wire. Not being soldered on could cause some intermittent continuity, as well-one simply never knows on that type of thing.
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Joined: Aug 2013
Posts: 83
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From: Montreal, QC
Yep, I opted for a ghetto approach since my install is temporary (just to pass Canadian mechanical inspection)...