Nissan Leaf. Manual - part 340

BRC-150

< SYMPTOM DIAGNOSIS >

[WITH VDC]

EXCESSIVE OPERATION FREQUENCY

• Be sure to wait of 10 seconds after turning power switch OFF or ON.

• Set the vehicle to READY.

2. Repeat step 1 two or more times.

3. Perform “Self Diagnostic Result” of “ABS”.
Is any DTC detected?

YES

>> Check the DTC. Refer to 

BRC-56, "DTC Index"

.

NO

>> Inspection End.

UNEXPECTED BRAKE PEDAL REACTION

BRC-151

< SYMPTOM DIAGNOSIS >

[WITH VDC]

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UNEXPECTED BRAKE PEDAL REACTION

Description

INFOID:0000000010120123

A malfunction of brake pedal feel (height or others) is detected when brake pedal is depressed.

Diagnosis Procedure

INFOID:0000000010120124

1.

CHECK FRONT AXLE AND REAR AXLE

Check that there is no excessive looseness in front axle and rear axle.

• Front axle: Refer to 

FAX-7, "Inspection"

.

• Rear axle: Refer to 

RAX-6, "Inspection"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace error-detected parts.

2.

CHECK DISC ROTOR

Check the disc rotor runout.

• Front: Refer to 

BR-496, "DISC ROTOR : Inspection and Adjustment"

.

• Rear: Refer to 

BR-498, "DISC ROTOR : Inspection and Adjustment"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Refinish disc rotor.

• Front: Refer to 

BR-496, "DISC ROTOR : Inspection and Adjustment"

.

• Rear: Refer to 

BR-498, "DISC ROTOR : Inspection and Adjustment"

.

3.

CHECK BRAKE FLUID LEAKAGE 

Check the brake fluid leakage.

• Front: Refer to 

BR-506, "FRONT : Inspection"

.

• Rear: Refer to 

BR-509, "REAR : Inspection"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace error-detected parts.

4.

CHECK BRAKE PEDAL

Check the each item of brake pedal. Refer to 

BR-490, "Inspection and Adjustment"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Adjust each item of brake pedal. Refer to 

BR-490, "Inspection and Adjustment"

.

5.

CHECK BRAKING FORCE

Check the brake force using a brake tester.
Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Check the each components of brake system.

6.

CHECK BRAKE PERFORMANCE

Disconnect ABS actuator and electric unit (control unit) connector so that ABS does not operate. Check that

brake force is normal in this condition. Connect harness connectors after checking.
Is the inspection result normal?

YES

>> Normal

NO

>> Check the each components of brake system.

BRC-152

< SYMPTOM DIAGNOSIS >

[WITH VDC]

THE BRAKING DISTANCE IS LONG

THE BRAKING DISTANCE IS LONG

Description

INFOID:0000000010120125

Brake stopping distance is long when ABS function is operated.

Diagnosis Procedure

INFOID:0000000010120126

CAUTION:

Brake stopping distance on slippery road like rough road, gravel road or snowy road may become

longer when ABS is operated than when ABS is not operated.

1.

CHECK BRAKING FORCE

Check the brake force using a brake tester.
Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Check the each components of brake system.

2.

CHECK BRAKE PERFORMANCE

Disconnect ABS actuator and electric unit (control unit) connector so that ABS does not operate. Check the

brake stopping distance in this condition. Connect harness connectors after checking.
Is the inspection result normal?

YES

>> Normal

NO

>> Check the each components of brake system.

DOES NOT OPERATE

BRC-153

< SYMPTOM DIAGNOSIS >

[WITH VDC]

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DOES NOT OPERATE

Description

INFOID:0000000010120127

VDC function, TCS function, ABS function, EBD function, brake limited slip differential (BLSD) function and

brake assist function does not operate.

Diagnosis Procedure

INFOID:0000000010120128

CAUTION:

• VDC function, TCS function, ABS function, EBD function and brake assist function never operate

when the vehicle speed is 10 km/h (6.2 MPH) or less.

• VDC function and TCS function never operate when VDC OFF switch is operated (when VDC OFF

indicator lamp turns ON).

1.

CHECK WARNING LAMP

Check that ABS warning lamp, brake warning lamp and VDC warning lamp turn ON and turn OFF approx. 1

second after power switch is turned ON. Check that ABS warning lamp, brake warning lamp and VDC warning

lamp and stay in OFF status during driving.

CAUTION:

Brake warning lamp turns ON when brake fluid is less than the specified level (brake fluid level switch

is ON).
Is the inspection result normal?

YES

>> Normal

NO

>> GO TO 2.

2.

PERFORM SELF DIAGNOSTIC

With CONSULT

1. Turn the power switch OFF 

→ ON.

CAUTION:

• Be sure to wait of 10 seconds after turning power switch OFF or ON.

• Set the vehicle to READY.

2. Repeat step 1 two or more times.

3. Perform “Self Diagnostic Result” of “ABS”.
Is any DTC detected?

YES

>> Check the DTC. Refer to 

BRC-56, "DTC Index"

.

NO

>> Inspection End.