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In this episode, we will bench test and install a DRL system, into a 20 years old Alfa Romeo 156.
For this video, we will use a pair of 1156 66SMD 2-color LED (White - Amber) turn signal bulbs, and one DRL controller module. (same configuration with our previous video • Alfa Romeo 159 DRL & S... )
The signal LED are connected in series with an external 50W 6 Ohm resistor.
They consume 1.5A * 14V = 21W (same power with the old halogen bulbs, therefore the same behavior @ the signal relay)
The DRL
are automatically engaged, when the engine starts and the voltage exceeds 13V
are disengaged when a signal light is engaged
are dimmed automatically when the parking lights are engaged. (night mode)
are disengaged 30sec after the engine stops (follow me home mode)