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:
Illumination Control Switch Signal Circuit
Diagnosis Procedure
Diagnosis Procedure
CHECK COMBINATION METER INPUT
SIGNAL
Ignition switch ON.
Check voltage between the following terminals of
the illumination co ...
Fuel Tank Temperature Sensor
Component Inspection
Component Inspection
CHECK FUEL TANK TEMPERATURE (FTT)
SENSOR
Turn ignition switch OFF.
Disconnect fuel level sensor unit and
fuel pump harness connector.
Remov ...
Basic Inspection
Diagnosis and Repair Work Flow
Work Flow
Work Flow
OVERALL SEQUENCE
DETAILED FLOW
GET INFORMATION FOR SYMPTOM
Get detailed information from the customer about
the symptom (the condition and the environment ...