LED alternator warning light... New chrome alternator... Nov 6, 2018 19:55:34 GMT -5
Post by recog on Nov 6, 2018 19:55:34 GMT -5
Just wanted to share that you can use an LED warning light, and it does not have to be an incandescent lamp as was the original bug...
Here is a link ("Rob and Dave"): www.vw-resource.com/alternator_wiring.html
( NOTICE the discussion under: Necessity for the Alternator Warning Light )
YES, they talk of the original incandescent lamp...
I used an Alpinetech Model: PL12MS-32 which mounts in a 12 mm hole... (YES, bought from Amazon with other electrical auto goodies... )
Here is a link of my revised dash in this area: drive.google.com/file/d/1ddKaQwklyRb4RjikoijwRTQ5lO1cDKSv/view?usp=sharing
THE KEY to doing this is use a 15 ohm power resistor in parallel with the LED. THIS provides the alternator electronics to sense the battery voltage.
HERE is a link showing where I mounted my 15 ohm 30 watt power resistor (per the "Bible", page "E2", use a 15 ohm 10 watt if you have one... I like to use items from my rich junk box? ...):
One end of the paralleled resistor and LED (LED red lead) must go to the battery side, such as ignition "run". The other (LED black lead) to the "alternator field" connection. YES, the male quick connect behind the alternator power terminal.
THIS works! ... THE Alpinetech LED is very bright with a nice little battery icon.
( FYI: Notice also my little toggle switch below the LED for the voltmeter. The voltmeter is below in the three inch area due to my three inch lift kit. The toggle switch nicely lets me select the alternator output or the battery voltage being displayed on the voltmeter ... Verifies the alternator is working! ... I was happy today to accelerate the engine and see 14.0 volts on the voltmeter! )
Hope this helps!