Nissan Sentra manuals

Nissan Sentra Service Manual: Brake booster

Inspection

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


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


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.

Front disc brake


Brake master cylinder
Inspection Check for brake fluid leakage at the following areas: Master cylinder mounting face Reservoir tank mounting face Brake tube and brake tube connections Brake hose and brake hose ...

Front disc brake
BRAKE PAD BRAKE PAD : Inspection PAD WEAR Check brake pad thickness from an inspection hole on caliper body. Check using a scale if necessary Wear limit thickness : Refer to BR-55, "Front ...

Other materials:

Front wiper auto stop signal circuit
Component function check 1. Check front wiper (auto stop) operation Consult data monitor Select “WIP AUTO STOP” of IPDM E/R DATA MONITOR item. Operate the front wiper. With the front wiper operation, check the monitor status. Is the inspection result normal? YES >> ...

DTC/Circuit diagnosis
U0073 COMMUNICATION BUS A OFF DTC Logic DTC DETECTION LOGIC DTC CONSULT screen terms (Trouble diagnosis content) DTC detection condition Possible causes U0073 COMM BUS A OFF (Control Module Communication Bus A Off) TCM communication blockage lasts for 2 sec ...

Maintenance precautions
When performing any inspection or maintenance work on your vehicle, always take care to prevent serious accidental injury to yourself or damage to the vehicle. The following are general precautions which should be closely observed. WARNING Park the vehicle on a level surface, apply ...

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