LED Turn Signals, Flashing slow on a 73 |
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
LED Turn Signals, Flashing slow on a 73 |
adolimpio |
Nov 3 2022, 03:55 PM
Post
#1
|
Art Group: Members Posts: 180 Joined: 10-March 10 From: Greenwood SC Member No.: 11,449 Region Association: South East States |
I installed LED light bulbs, front and rear and as expected the flasher relay did not like the lack of current, similar to a defective bulb. This caused the flash to be slow and both dash indicators to flash.
When the relay senses low current it removes the ground connection from terminal K, the blue/white wire which is the common for the dash indicators. This causes a loop through the dash indicators causing them both to blink. I tried the typical solution, which is installing resistors in parallel with each LED, but the standard 6 ohm resistors did not help. I needed to double them to 3 ohm and then the LEDs seemed dim. I decided to try to override the relay and connected terminal K to terminal 31, brown, which is ground. This caused everything to work perfectly with no resistors installed. The only downside I see is that the relay can no longer warn you when a bulb is defective, but with 10,000 hour LEDs, that's not much of an issue. I hope this helps others when upgrading to LEDs. |
Geezer914 |
Nov 3 2022, 04:12 PM
Post
#2
|
Geezer914 Group: Members Posts: 1,409 Joined: 18-March 09 From: Salem, NJ Member No.: 10,179 Region Association: North East States |
Sent a PM
|
Lo-Fi Version | Time is now: 15th May 2024 - 09:38 AM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |