|
The sequential flash relies upon an internal timing circuit.
Normally the side marker merely goes on and off, so once voltage is applied the circuit has to power the leds one at a time.
In turn that circuit relies upon the usual marker blink rate of about one off-on cycle per second.
If your car is pulsing the markers at a faster rate the sequential LEDs will not work.
One of my non-BMW vehicles had the issue because of a fast blink rate which is normally used to indicate burned out bulbs.
|