LED turn signal relay MOD

1. Remove turn-signal relay from the car (TOYOTA 81980-02030)

2. The stock relay comes with a 0.03 Ohm current-sensing resistor, which detects over or under-load conditions. The most typical case for the under-load condition is that a turn signal bulb is out. Upon detection of this condition, the blinking frequency is doubled (a.k.a., hyper flash). On the other hand, when the over-load condition is detected, the blinking stops after a single blinking.

In my case, the replacement LED bulbs consumes approximately one third the power of the original Halogen bulbs. Thus, I decided to replace the current sensing resistor with a 0.1 Ohm resistor.

 3. Resistor replacement is done!