Does Nissan Atlima 2017 has turn signal flasher?

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The BCM controls it. Here is a description of how the system works.

System Description
TURN SIGNAL OPERATION
When the combination switch (lighting and turn signal switch) is in LH or RH turn position with the ignition switch in the ON position, the BCM receives input requesting the turn RH or turn LH lamps to illuminate. The BCM controls the turn signal power to the respective turn signal lamp. The BCM also sends a turn indicator signal ON request via the CAN communication lines to the combination meter. The combination meter then activates the appropriate turn signal indicator and audible buzzer

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Take care,
Joe