Nissan Leaf. Manual - part 259

C1AA2 STROKE SENSOR

BR-357

< DTC/CIRCUIT DIAGNOSIS >

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Never operate the vehicle while waiting.

5. Turn the power switch ON without depressing the brake pedal.

CAUTION:

Never set the vehicle to READY.

6. Start CONSULT and erase self-diagnosis result of “BRAKE”.

7. Turn the power switch OFF to exit CONSULT, and disconnect CONSULT from data link connector.

8. Close all doors (including back door), check that the room lamp is OFF, get out of the vehicle, and wait for

3 minutes or more with all doors closed.

CAUTION:

Never operate the vehicle while waiting.

9. Turn the power switch ON without depressing the brake pedal.

CAUTION:

Never set the vehicle to READY.

10. Depress brake pedal by 100 mm (3.94 in) or more, and hold the position for 5 seconds or more.

11. Release brake pedal.

12. Start CONSULT and perform “BRAKE” self-diagnosis.
Is DTC “C1AA2” detected?

YES

>> GO TO 15.

NO

>> INSPECTION END

15.

STROKE SENSOR 0 POINT LEARNING (1)

With CONSULT

Perform stroke sensor 0 point learning. Refer to 

BR-53, "Work Procedure"

.

Is either “COMPLETED” or “The operation is incomplete. Try again after confirming the operation condition.”

displayed?

“COMPLETED”>>GO TO 16.

“The operation is incomplete. Try again after confirming the operation condition.”>>GO TO 17.

16.

PERFORM SELF-DIAGNOSIS (7)

With CONSULT

1. Turn the power switch OFF to ON without depressing the brake pedal.

CAUTION:

Never set the vehicle to READY.

2. Repeat step 1 two or more times.

CAUTION:

Be sure to wait for 5 seconds or more after turning the power switch OFF.

3. Turn the power switch OFF to exit CONSULT, and disconnect CONSULT from data link connector.

4. Close all doors (including back door), check that the room lamp is OFF, get out of the vehicle, and wait for

3 minutes or more with all doors closed.

CAUTION:

Never operate the vehicle while waiting.

5. Turn the power switch ON without depressing the brake pedal.

CAUTION:

Never set the vehicle to READY.

6. Start CONSULT and erase self-diagnosis result of “BRAKE”.

7. Turn the power switch OFF to exit CONSULT, and disconnect CONSULT from data link connector.

8. Close all doors (including back door), check that the room lamp is OFF, get out of the vehicle, and wait for

3 minutes or more with all doors closed.

CAUTION:

Never operate the vehicle while waiting.

9. Turn the power switch ON without depressing the brake pedal.

CAUTION:

Never set the vehicle to READY.

10. Depress brake pedal by 100 mm (3.94 in) or more, and hold the position for 5 seconds or more.

11. Release brake pedal.

12. Start CONSULT and perform “BRAKE” self-diagnosis.
Is DTC “C1AA2” detected?

YES

>> GO TO 17.

NO

>> INSPECTION END

BR-358

< DTC/CIRCUIT DIAGNOSIS >

C1AA2 STROKE SENSOR

17.

VISUALLY CHECK STROKE SENSOR

Check the stroke sensor for damage.
Is the inspection result normal?

YES

>> GO TO 18.

NO

>> Repair or replace error-detected parts and GO TO 21.

18.

CHECK STROKE SENSOR INSTALLATION

Check the stroke sensor for looseness and disconnection.
Is the inspection result normal?

YES

>> GO TO 19.

NO

>> Repair or replace error-detected parts and GO TO 21.

19.

CHECK BRAKE PEDAL HEIGHT

Check each brake pedal height. Refer to 

BR-490, "Inspection and Adjustment"

.

Is the inspection result normal?

YES

>> GO TO 20.

NO

>> Adjust each height. Refer to 

BR-490, "Inspection and Adjustment"

. GO TO 21.

20.

STROKE SENOR 0 POINT LEARNING (2)

Perform stroke sensor 0 point learning. Refer to 

BR-53, "Work Procedure"

.

>> GO TO 21.

21.

PERFORM SELF-DIAGNOSIS (8)

With CONSULT

1. Turn the power switch OFF to ON without depressing the brake pedal.

CAUTION:

Never set the vehicle to READY.

2. Repeat step 1 two or more times.

CAUTION:

Be sure to wait for 5 seconds or more after turning the power switch OFF.

3. Turn the power switch OFF to exit CONSULT, and disconnect CONSULT from data link connector.

4. Close all doors (including back door), check that the room lamp is OFF, get out of the vehicle, and wait for

3 minutes or more with all doors closed.

CAUTION:

Never operate the vehicle while waiting.

5. Turn the power switch ON without depressing the brake pedal.

CAUTION:

Never set the vehicle to READY.

6. Start CONSULT and erase self-diagnosis result of “BRAKE”.

7. Turn the power switch OFF to exit CONSULT, and disconnect CONSULT from data link connector.

8. Close all doors (including back door), check that the room lamp is OFF, get out of the vehicle, and wait for

3 minutes or more with all doors closed.

CAUTION:

Never operate the vehicle while waiting.

9. Turn the power switch ON without depressing the brake pedal.

CAUTION:

Never set the vehicle to READY.

10. Depress brake pedal by 100 mm (3.94 in) or more, and hold the position for 5 seconds or more.

11. Release brake pedal.

12. Start CONSULT and perform “BRAKE” self-diagnosis.
Is DTC “C1AA2” detected?

YES

>> GO TO 22.

NO

>> INSPECTION END

22.

CHECK STROKE SENSOR CIRCUIT (1)

1. Turn the power switch OFF to exit CONSULT, and disconnect CONSULT from data link connector.

C1AA2 STROKE SENSOR

BR-359

< DTC/CIRCUIT DIAGNOSIS >

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2. Close all doors (including back door), check that the room lamp is OFF, get out of the vehicle, and wait for

3 minutes or more with all doors closed.

CAUTION:

Never operate the vehicle while waiting.

3. Disconnect 12V battery cable from negative terminal. Refer to 

BR-6, "Precaution for Removing 12V Bat-

tery"

.

4. Disconnect the stroke sensor harness connector.

5. Disconnect the electrically-driven intelligent brake unit harness connector.

6. Check the continuity between stroke sensor harness connector and electrically-driven intelligent brake

unit.

Is the inspection result normal?

YES

>> GO TO 23.

NO

>> Repair or replace error-detected parts and GO TO 28.

23.

CHECK STROKE SENSOR POWER SUPPLY

1. Connect the electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Close all doors (including back door), check that the room lamp is OFF, get out of the vehicle, and wait for

3 minutes or more with all doors closed.

CAUTION:

Never operate the vehicle while waiting.

4. Turn the power switch ON without depressing the brake pedal.

CAUTION:

Never set the vehicle to READY.

5. Check the stroke sensor power voltage.

Is the inspection result normal?

YES

>> GO TO 24.

NO

>> Repair or replace error-detected parts and GO TO 24.

Stroke sensor

Electrically-driven intelligent brake unit

Continuity

Connector

Terminal

Connector

Terminal

E36

3

E34

18

Existed

3

33

Not existed

3

19

Not existed

3

35

Not existed

2

18

Not existed

2

33

Existed

2

19

Not existed

2

35

Not existed

1

18

Not existed

1

33

Not existed

1

19

Existed

1

35

Not existed

4

18

Not existed

4

33

Not existed

4

19

Not existed

4

35

Existed

Stroke sensor

—

Voltage

(Approx.)

Connector

Terminal

E36

3

Ground

4.75 

− 5.25 V

B R - 3 6 0

< DTC/CIRCUIT DIAGNOSIS >

C1AA2 STROKE SENSOR

24.

CHECK STROKE SENSOR CIRCUIT (2)

1. Turn the power switch OFF to exit CONSULT, and disconnect CONSULT from data link connector.

2. Close all doors (including back door), check that the room lamp is OFF, get out of the vehicle, and wait for

3 minutes or more with all doors closed.

CAUTION:

Never operate the vehicle while waiting.

3. Disconnect 12V battery cable from negative terminal. Refer to 

BR-6, "Precaution for Removing 12V Bat-

tery"

.

4. Disconnect stroke sensor harness connector.

5. Disconnect the electrically-driven intelligent brake unit harness connector.

6. Check the continuity between stroke sensor and ground.

Is the inspection result normal?

YES

>> GO TO 25.

NO

>> Repair or replace error-detected parts and GO TO 25.

25.

CHECK STROKE SENSOR RESISTANCE

1. Turn the power switch OFF to exit CONSULT, and disconnect CONSULT from data link connector.

2. Close all doors (including back door), check that the room lamp is OFF, get out of the vehicle, and wait for

3 minutes or more with all doors closed.

CAUTION:

Never operate the vehicle while waiting.

3. Disconnect 12V battery cable from negative terminal. Refer to 

BR-6, "Precaution for Removing 12V Bat-

tery"

.

4. Connect stroke sensor harness connector.

5. Disconnect the electrically-driven intelligent brake unit harness connector.

6. Check the resistance between stroke sensor connector pin terminals.

Is the inspection result normal?

YES

>> GO TO 28.

NO

>> GO TO 26.

26.

REPLACE STROKE SENSOR

Replace the stroke sensor. Refer to 

BR-500, "Removal and Installation"

.

>> GO TO 27.

27.

STROKE SENOR 0 POINT LEARNING (3)

1. Connect the electrically-driven intelligent brake unit harness connector.

2. Perform stroke sensor 0 point learning. Refer to 

BR-53, "Work Procedure"

.

>> GO TO 28.

28.

PERFORM SELF-DIAGNOSIS (9)

With CONSULT

1. Connect the electrically-driven intelligent brake unit harness connector.

Stroke sensor

—

Continuity

Connector

Terminal

E36

4

Ground

Existed

Electrically-driven intelligent brake unit

Condition

Resistance

Connector

Terminal

E34

33 

− 19

Gradually depress 
the brake pedal.

Resistance value increases between 0.1 

− 1.33 kΩ, according to 

the depth of brake depression.

35 

− 19

Resistance value decreases between 0.1 

− 1.33 kΩ, according to 

the depth of brake depression.