Nissan Leaf. Manual — part 292

NORMAL OPERATING CONDITION

BR-489

< SYMPTOM DIAGNOSIS >

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NORMAL OPERATING CONDITION

Description

INFOID:0000000010123116

Symptom

Result

The brake pedal may move during braking.

This occurs when the electrically-driven
intelligent brake unit is operating normally
and is not a malfunction.

When the brake pedal is depressed while the power switch is OFF, an operating sound may
occur or the pedal stroke may feel short.

There may be an operating noise or the brake pedal may move after the brake pedal is op-
erated.

An operating noise may occur when the power switch is turned OFF (system stop sound).

The brake pedal may move when ABS is activated immediately after the READY state of
the vehicle.

After turning the power switch OFF and waiting for a few minutes in the car (with all doors
closed and brake pedal not depressed), the electrically-driven intelligent brake unit goes
into sleep mode. If the brake pedal is depressed after the unit goes into sleep mode, the
brake pedal operation may be felt awkward or the depth of pedal depression insufficient for
a little while.

This is not a malfunction. Depress the
brake pedal fully.

BR-490

< PERIODIC MAINTENANCE >

BRAKE PEDAL

PERIODIC MAINTENANCE

BRAKE PEDAL

Inspection and Adjustment

INFOID:0000000010123117

INSPECTION

Brake Pedal Height

Check the height from the dash lower panel to the top face of the

brake pedal (H

1

), using Tool.

CAUTION:

Perform with the floor trim pulled up.

Stop Lamp Switch and Brake Pedal Position Switch (if equipped)

Check the clearance (C) between brake pedal lever and the
threaded end of stop lamp switch and brake pedal position switch

(if equipped).

CAUTION:

The stop lamp must turn OFF when the brake pedal is released.

NOTE:

When checking the clearance between the brake pedal lever and

threaded end of stop lamp switch and brake pedal position switch (if

equipped), check with the brake pedal (pad) pulled gently toward

you.

Pedal Height When Depressed

Check the height from the dash lower panel to the top face of the

brake pedal (H

2

) when depressing the brake pedal with a force of

196 N (20 kg, 44 lb) while the vehicle is in READY state.

CAUTION:

Perform with the floor trim pulled up.

ADJUSTMENT

Brake Pedal Height

1. Remove the instrument lower panel LH. Refer to

IP-17, "Removal and Installation"

.

2. Disconnect the harness connectors from the stop lamp switch and brake pedal position switch (if

equipped).

3. Rotate the stop lamp switch and brake pedal position switch (if equipped) counterclockwise by 45

° to

loosen them.

(H

1

)

: Refer to

BR-530, "Brake Pedal"

.

Tool number : — (J-46532)

JPFIA0065ZZ

(C)

: Refer to

BR-530, "Brake Pedal"

.

PFIA0813J

(H

2

)

: Refer to

BR-530, "Brake Pedal"

.

JPFIA0068ZZ

BRAKE PEDAL

BR-491

< PERIODIC MAINTENANCE >

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4. Loosen the input rod lock nut .
5. Rotate the input rod .

CAUTION:

The threaded part of the input rod end must project to the
inside of the clevis .

6. Adjust the brake pedal to the specified height (H

1

).

7. Tighten the lock nut to the specified torque.

BR-510, "Exploded View"

.

8. After adjusting the brake pedal height, adjust the clearance between the stopper rubber and threaded end

of stop lamp switch and brake pedal position switch (if equipped).

9. Perform stroke sensor 0 point learning when the brake pedal assembly is removed and installed, or

replaced. Refer to

BR-53, "Work Procedure"

.

Stop Lamp Switch and Brake Pedal Position Switch (if equipped)

1. Remove the instrument lower panel LH. Refer to

IP-17, "Removal and Installation"

.

2. Disconnect the harness connectors from the stop lamp switch and brake pedal position switch (if

equipped).

3. Rotate the stop lamp switch and brake pedal position switch (if equipped) counterclockwise by 45

° to

loosen them.

4. With the brake pedal (pad) pulled gently toward you, press in

until the threaded end of stop lamp switch and brake pedal posi-
tion switch (if equipped) contacts the brake pedal lever .

Under those conditions, rotate 45

° to the right to fasten it in

place.

CAUTION:

• Clearance (C) between the brake pedal lever and threaded

end of stop lamp switch and brake pedal position switch

must be the specified value.

• The stop lamp must turn OFF when the brake pedal is

released.

5. Perform stroke sensor 0 point learning when the brake pedal assembly is removed and installed, or

replaced. Refer to

BR-53, "Work Procedure"

.

Pedal Height When Depressed

1. Perform air bleeding.

BR-494, "Bleeding Brake System"

.

JPFIA0662ZZ

(H

1

)

: Refer to

BR-530, "Brake Pedal"

.

JPFIA0279ZZ

(C)

: Refer to

BR-530, "Brake Pedal"

.

PFIA0813J

BR-492

< PERIODIC MAINTENANCE >

BRAKE PEDAL

2. Check the height from the dash lower panel to the top face of

the brake pedal (H

2

) when depressing the brake pedal with a

force of 196 N (20 kg, 44 lb) while the vehicle is in READY state.

CAUTION:

Perform with the floor trim pulled up.

3. Adjust the brake pedal height, and the clearance with the stop

lamp switch and brake pedal position switch (if equipped).

4. Perform stroke sensor 0 point learning when the brake pedal

assembly is removed and installed, or replaced. Refer to

BR-53,

"Work Procedure"

.

(H

2

)

: Refer to

BR-530, "Brake Pedal"

.

JPFIA0068ZZ