Nissan Sentra B18 (2020-2025) Service Manual / Body Exterior, Doors, Roof & Vehicle Security / Roof :: System Description

Nissan Sentra B18 (2020-2025) Service Manual: Roof :: System Description

Component Parts. Moonroof. Moonroof

Component Parts Location

Component Parts Location

A.	View of moonroof switch finisher

No.	Component	Function
1.	Moonroof motor assembly	The moonroof motor and CPU are integrated into one unit that opens/closes based on the moonroof switch operation input. Refer to Moonroof Motor Assembly.
2.	Combination meter	Transmits the Nissan Sentra vehicle speed signal to moonroof motor assembly. Refer to Component Parts Location (Type A) or Component Parts Location (Type B) for detailed component location.
3.	Moonroof switch assembly	Transmits open/close operation signal to the moonroof motor assembly. Refer to Moonroof Switch Assembly.

No.

Component

Function

Moonroof motor assembly

The moonroof motor and CPU are integrated into one unit that opens/closes based on the moonroof switch operation input.

Refer to Moonroof Motor Assembly.

Combination meter

Transmits the Nissan Sentra vehicle speed signal to moonroof motor assembly.

Refer to Component Parts Location (Type A) or Component Parts Location (Type B) for detailed component location.

Moonroof switch assembly

Transmits open/close operation signal to the moonroof motor assembly.

Refer to Moonroof Switch Assembly.

Moonroof Switch Assembly

Moonroof Switch Assembly

COMPONENT FUNCTION WITHIN SYSTEM

Moonroof switch is located in the overhead center console.
Moonroof switch assembly controls moonroof motor assembly.

INDIVIDUAL COMPONENT FUNCTION

Transmits operation signal to moonroof motor assembly.

Moonroof Motor Assembly

Moonroof Motor Assembly

COMPONENT FUNCTION WITHIN SYSTEM

Moonroof motor assembly is located at front of moonroof unit assembly.
Moonroof motor assembly controls sunroof.
Moonroof motor assembly controls automatic operation.
Moonroof motor assembly controls anti-pinch function.

INDIVIDUAL COMPONENT FUNCTION

Opens/closes and tilts up/down the sunroof.

System. Moonroof. Moonroof

System Description

System Description

MOONROOF SYSTEM

INPUT SIGNAL AND OUTPUT SIGNAL

Item	Input signal to moonroof motor assembly	Moonroof motor function	Actuator
Moonroof switch assembly	Moonroof switch signal (tilt down or slide open)	Receives signal and moves the moonroof assembly to the correct position.	Moonroof motor
Moonroof switch assembly	Moonroof switch signal (tilt up or slide close)
Combination meter	Nissan Sentra Vehicle speed signal	Receives speed signal and determines the amount of torque the motor requires.

AUTO OPERATION

The moonroof AUTO feature makes it possible to slide open and slide close the moonroof without holding the moonroof switch in the slide open/close position.

Note:

Moonroof motor assembly operates with the power supply that is output from the battery while the ignition switch is ON or retained power is operating.
If initialization setting is not performed, the automatic function does not operate.
During automatic operation, when the moonroof switch is operated, automatic operation can be stopped.

MOONROOF OPERATION

Moonroof motor assembly operates with the power supply that is output from the battery while the ignition switch is ON or retained power is operating.
Tilt up/ down & slide open/ close signals from moonroof switch enables moonroof motor to move arbitrarily.
Moonroof motor assembly receives a Nissan Sentra vehicle speed signal from combination meter and controls the moonroof motor torque of tilt-down at the time of high speed operation.

ANTI-PINCH FUNCTION

The CPU of moonroof motor assembly monitors the moonroof motor operation and the moonroof position (fully-closed or other) by the signals from moonroof motor.

When moonroof motor detects an interruption during the following slide close and tilt down operation, moonroof switch controls the motor for open and the moonroof will operate until full up position (when tilt down operates) or 3.94 in. (100 mm) or more in an open direction (when slide close operates):

Close operation and tilt down when ignition switch is in the “ON” position

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