Replacing incandescent lights with LEDs in your car’s turn signals may cause errors in the vehicle’s on-board computer (CANbus), as LEDs use much less energy than incandescent lights.
In addition to generating error messages, replacing incandescent turn signal bulbs with LEDs in vehicles often causes the turn signal frequency to increase a phenomenon known as “hyper flashing”. This occurs because automotive flasher relays and on-board computers are designed to detect failures by monitoring the current draw: when it falls below a certain threshold (as it does with energy-efficient LEDs), the system interprets this as a missing or burned bulb, and increases the blink rate to alert the driver of a problem.
To solve these problems, they usually use LED load resistors.
LED load resistor and “dummy resistor” are commonly used terms for the same type of solution in automotive LED retrofit applications. Its main purpose is to simulate the current consumption of traditional incandescent lamps, which is much higher than that of LEDs, allowing the vehicle’s electronic systems to function properly after switching to LEDs.
Gambeks has developed a universal electronic controller module that replaces load resistors and solves all of these problems, while remaining cool and fully controlling the proper operation of the vehicle’s computer.
Our company has developed an innovative intellectual module” that solved those problems! Comparison of our smart module with a load resistor







