Nissan Sentra B18 (2020-2025) Service Manual: Brake Booster. Inspection
Inspection
Inspection
BRAKE BOOSTER
Operation
Depress the brake pedal several times at five second intervals with the engine stopped. Start the engine with the brake pedal fully depressed. Check that the clearance between brake pedal and dash lower panel decreases.
Note: 
A slight impact with a small click may be felt on the pedal when the brake pedal is fully depressed. This is normal brake system operation.
Vacuum Inspection
Idle the engine for one minute to apply vacuum to the brake booster. Stop the engine. Depress the brake pedal several times at five second intervals until the accumulated vacuum is released to atmospheric pressure. Check that the clearance between brake pedal and dash lower panel gradually increases (A –>B –>C) each time the brake pedal is depressed during this operation.
Depress the brake pedal with the engine running. Then stop the engine while holding down the brake pedal. Check that the brake pedal stroke does not change after holding down the brake pedal for 30 seconds or more.
Note:
A slight impact with a small click may be felt on the pedal when the brake pedal is fully depressed. This is normal brake system operation.
Other materials:
System
Body Control System
System Description
System Description
OUTLINE
The BCM controls the various electrical components.
It inputs the information required for control via CAN communication
and the signal received from each switch and sensor.
The BCM ...
Hazard Switch
Component Inspection
Component Inspection
CHECK HAZARD SWITCH
Ignition switch OFF.
Disconnect hazard switch connector.
Check continuity between hazar ...
B0002-09 Driver Air Bag Module
Dtc Description
DTC Description
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis
content)
DTC detecting condition
...