Starting Fan Speed Control
WARNING: This page is about a different car, the 2018 Infiniti Q60. However, it is still accessible from the selected car via links, so may be relevant.
When blower motor is activated, A/C auto amp. gradually increases duty ratio of blower motor control signal to prevent a sudden increase in discharge air flow. (T 1 -
T 2
= approximately 20 seconds)
NOTE:
Do not perform the starting air flow control when the discharge outlet is set to DEF.
 Courtesy of NISSAN NORTH AMERICA, INC.
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