Headlight Changeover Relay 1972 US T
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kasbridge
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Headlight Changeover Relay 1972 US T
Hi,
Doing some fault finding as my dipped beam not working - I’ve got the SL-35 wiring diagram from Rennlist but before I start messing with the stalk (which I understand is the most likely culprit) which involves steering wheel removal I thought I’d test the relay shown as Headlight Changeover Relay as it’s cheap and hopefully easy to do.
So, does my car have one and if so where can I find it? It looks like it’s either going to be behind the instruments or somewhere in the trunk near the bulkhead.
Also I’ve been browsing the P reissued driver manuals but they don’t list the USA 911T - any ideas where I might source one?
Thanks as always, really enjoying getting to know the car!
Cheers,
Kevin
Doing some fault finding as my dipped beam not working - I’ve got the SL-35 wiring diagram from Rennlist but before I start messing with the stalk (which I understand is the most likely culprit) which involves steering wheel removal I thought I’d test the relay shown as Headlight Changeover Relay as it’s cheap and hopefully easy to do.
So, does my car have one and if so where can I find it? It looks like it’s either going to be behind the instruments or somewhere in the trunk near the bulkhead.
Also I’ve been browsing the P reissued driver manuals but they don’t list the USA 911T - any ideas where I might source one?
Thanks as always, really enjoying getting to know the car!
Cheers,
Kevin
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neilbardsley
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Re: Headlight Changeover Relay 1972 US T
I guess the relays are either by the fuse board or in the bonnet behind the dash? Hopefully, someone you knows better will be along soon
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Lightweight_911
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Re: Headlight Changeover Relay 1972 US T
From memory these cars came from the Factory without any headlamp relay - hence the problems that can occur with the contacts in the column switch burning.
The crop up on ebay & Pelican fairly regularly ...
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Andy
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kasbridge
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Re: Headlight Changeover Relay 1972 US T
many thanks I missed these replies!Lightweight_911 wrote: ↑Thu Oct 23, 2025 10:18 pmFrom memory these cars came from the Factory without any headlamp relay - hence the problems that can occur with the contacts in the column switch burning.
The crop up on ebay & Pelican fairly regularly ...
.
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SeanP
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Re: Headlight Changeover Relay 1972 US T
Headlight flasher relay is behind the fuel gauge. If you are looking for the headlight changeover relay that drops out the dipped beam when the main beam is activated
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1969 912/6 hotish rod in build
1974 914 Dead
LI 125 Lambretta (Yeah right it’s a 125)
Mini Cooper s
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Nine One One
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Re: Headlight Changeover Relay 1972 US T
This may help if you want to put a relay in, and also trouble shoot your wiring if dipped beam not working, dependant on the stalk itself, which may help identify what it is?
Although the is a later model, the basics will be the same, once you locate the correct wires in the fuse boxes.
https://www.youtube.com/watch?v=Rfzr_sPh4hw
Although the is a later model, the basics will be the same, once you locate the correct wires in the fuse boxes.
https://www.youtube.com/watch?v=Rfzr_sPh4hw

