I fired up my 71S on Saturday night and both the emergency brake light and both turn signals flash together on the gauges.
The emergency brake was not on.....checked several times.
Stranger than that, all turn signals work as well as the hazard lights.
All of the fuses were intact and tight and the only recent work that has been done is replacing both batteries.
Any ideas are appreciated.
Jay
Last edited by Orange71S; 08-02-2022 at 11:58 AM. Reason: clarification
1946 Willys Army Jeep
1956 356A Cab
1957 356A Speedster
1959 Austin-Healey Sprite
1962 356B Notchback
1969 911T 'Speedster'
1971 911S
1974 Ford Ranchero
1986 911 Carrera Cab
1993 Audi V8Q
2001 Mazda Miata 'Daughters Car'
2008 Audi S6
2018 Panamera 4S 'Wife's Car'
The flashing occurs as soon as the key is turned on, whether the engine is running or not.
No ideas?
Jay
Last edited by Orange71S; 08-05-2022 at 07:39 AM.
1946 Willys Army Jeep
1956 356A Cab
1957 356A Speedster
1959 Austin-Healey Sprite
1962 356B Notchback
1969 911T 'Speedster'
1971 911S
1974 Ford Ranchero
1986 911 Carrera Cab
1993 Audi V8Q
2001 Mazda Miata 'Daughters Car'
2008 Audi S6
2018 Panamera 4S 'Wife's Car'
How often does the flashing occur? Like 10 times per minute or 30 times or?????
Good question!
The flashing occurs with the same regularity of the hazard lights and/or turn signals.
Jay
1946 Willys Army Jeep
1956 356A Cab
1957 356A Speedster
1959 Austin-Healey Sprite
1962 356B Notchback
1969 911T 'Speedster'
1971 911S
1974 Ford Ranchero
1986 911 Carrera Cab
1993 Audi V8Q
2001 Mazda Miata 'Daughters Car'
2008 Audi S6
2018 Panamera 4S 'Wife's Car'
Are you sure the switch in the hand brake has not seized or shorted?
Ravi
Early 911S Registry # 2395
1973 Porsche 911S in ivory white 5sp MT
2015 Porsche Macan S in agate grey 7sp PDK
I would turn on the ignition without starting the engine then put your hand on the various relays under the cowling to see which one is flashing. Then unplug the relay to see what is not working. This gets you closer. Do you have an electrical schematic?
Did you change anything just before the flashing started?
I guess it could be shorted. If it were shorted out, would that make the turn signals flash, too?
Jay
1946 Willys Army Jeep
1956 356A Cab
1957 356A Speedster
1959 Austin-Healey Sprite
1962 356B Notchback
1969 911T 'Speedster'
1971 911S
1974 Ford Ranchero
1986 911 Carrera Cab
1993 Audi V8Q
2001 Mazda Miata 'Daughters Car'
2008 Audi S6
2018 Panamera 4S 'Wife's Car'
1969911T,
That's not a bad idea.
Yes, I have both factory and Prospero's Garage schematics.
The only change/work on the car prior to this flashing was to change both batteries.
Jay
1946 Willys Army Jeep
1956 356A Cab
1957 356A Speedster
1959 Austin-Healey Sprite
1962 356B Notchback
1969 911T 'Speedster'
1971 911S
1974 Ford Ranchero
1986 911 Carrera Cab
1993 Audi V8Q
2001 Mazda Miata 'Daughters Car'
2008 Audi S6
2018 Panamera 4S 'Wife's Car'
I have a 73, but yes I believe that is correct. Both the lights flash if the handbrake is not completely down as the contact from the gauge light is still grounded through the switch. So it's possible that the switch has lost it's adjustment. You have to remove the rubber boot to adjust it. It's a bit rube goldberg but pretty obvious once you look at it. Easily adjustable. I'm not sure if your car has a switch on the master cylinder. If it does and that is grounded, I think you can get the same behaviour. You can unplug it from underneath the car and see what happens. It could be that switch has failed or that you are actually low on brake fluid.Originally Posted by Orange71S
Ravi
Early 911S Registry # 2395
1973 Porsche 911S in ivory white 5sp MT
2015 Porsche Macan S in agate grey 7sp PDK
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