I did something similar with mine, but swapped the wiring around so that the side lights were better than the existing torch battery brightness. The write-up was on the old site, obviously lost now. I like the clear look 😎
*** There is a resistor in the indicator control box that needs upgrading to allow a lamp switch, otherwise the indicator flash to is rapid, I used some LED lamps as well
Post by Jeff - jthspace on Feb 15, 2022 13:12:06 GMT
Modded a Mk3 with switchbacks/DRL with a relay yesterday. I am going to fit the relay to mine as well to save me the time and effort of remembering to switch on the sidelights when driving. (and turning them off when parking!).
Ordered two relays as I suspect I may have a Mk2 to do the switchback/DRL mod on as well after Simon saw them being done yesterday . . . .
I used balance resistors (50ohm) which came as part of the LED bulbs.
MODDING THE RELAY INSTEAD OF USING LOAD BALANCERS (US INFO)
LED turn signal problems: hyperblink.
Quick background: NA Miatas (no clue about NB or NC) use a solid state flasher unit with two integrated relays and a network of transistors to control the timing. The circuit is designed to blink roughly twice as fast when a bulb is out; this is somehow based on current draw, so LEDs pose a problem since they draw significantly less current. One solution is to use a load resistor.
The fix: Use the article in the garage to locate, remove, and open the flasher unit. With the components facing you and the pins pointing down, find the left relay. To its left is a 5.6K ohm resistor marked R1. Desolder this resistor and replace it with a 1Meg ohm resistor. Now reinstall everything and enjoy.
Ginny : 2018 ND2 GT in Eternal Blue Daisy : 1993 Eunos in Red 147,008 kms