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#739947 24/04/22 12:36 AM
Joined: Aug 2021
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moggin Offline OP
Just Getting Started
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Posts: 53
I have operating turn signals in my 2005 Roadster 3.0 V6, but, suddenly, no hazard lights. I replaced the 3 prong turn indicator flasher but still no hazards. Is there another flasher or relay that may have failed? If so, where is it hiding? Any suggestions as to how to troubleshoot would be greatly appreciated. Thanks!


You can't beat a man at his own game.
moggin #739965 24/04/22 10:08 AM
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I had a similar problem with my '99 +8 some time ago.

It turned out to be the fuse, (which provides a supply when the red battery switch is activated to perhaps a clock and the like), located next to the said switch beneath the ply above the rear axle.

I had blown the fuse whilst I had been fiddling with something electrical beneath the bonnet......

Colin

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There is a 20 amp fuse, sixth in a bank of eight fed directly from positive battery post behind dash. I suspect though that the issue may be the infamous dash module that among others controls the hazard lights. If you can identify this, check for physical damage and re-make connectors including hazard switch itself.


Richard

2018 Roadster 3.7
1966 Land Rover S2a 88
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1945 Guzzi Airone
moggin #740042 25/04/22 07:12 AM
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Put on the headlights. If the hazards work it is the PCB. There are micro relays to power it. One for without lights one with. The solution hard wire the lights to be on with the igniton. That is what I did on my blue S1 Roadster. A new PCB if you can get one costs well over £600


JohnV6
2022 CX Plus Four
2025 Renault Scenic Alpine etech "Yvette"
moggin #740236 27/04/22 03:04 AM
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moggin Offline OP
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Thanks everyone. It was, in fact, the 20 amp fuse that I didn't know existed. All good now.


You can't beat a man at his own game.

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