Nissan Juke Service and Repair Manual : Unexpected brake pedal reaction
Description
A malfunction of brake pedal feel (height or others) is detected when brake pedal is depressed.
Diagnosis Procedure
1.CHECK FRONT AND REAR AXLE
Check that there is no excessive looseness in front and rear axle.
• Front axle: Refer to FAX-41, "Inspection".
• Rear axle: Refer to RAX-4, "Inspection" Is the inspection result normal? YES >> GO TO 2.
NO >> Repair or replace error-detected parts.
2.CHECK DISC ROTOR
Check disc rotor runout.
• Front
- LHD: Refer to BR-16, "DISC ROTOR : Inspection and Adjustment".
- RHD: Refer to BR-84, "DISC ROTOR : Inspection and Adjustment".
• Rear
- LHD: Refer to BR-18, "DISC ROTOR : Inspection and Adjustment".
- RHD: Refer to BR-86, "DISC ROTOR : Inspection and Adjustment".
Is the inspection result normal? YES >> GO TO 3.
NO >> Refinish disc rotor.
• Front
- LHD: Refer to BR-16, "DISC ROTOR : Inspection and Adjustment".
- RHD: Refer to BR-84, "DISC ROTOR : Inspection and Adjustment".
• Rear
- LHD: Refer to BR-18, "DISC ROTOR : Inspection and Adjustment".
- RHD: Refer to BR-86, "DISC ROTOR : Inspection and Adjustment".
3.CHECK BRAKE FLUID LEACKAGE
Check fluid leakage.
• Front
- LHD: Refer to BR-30, "FRONT : Inspection".
- RHD: Refer to BR-97, "FRONT : Inspection".
• Rear
- LHD: Refer to BR-39, "REAR : Inspection".
- RHD: Refer to BR-105, "REAR : Inspection".
Is the inspection result normal? YES >> GO TO 4.
NO >> Repair or replace error-detected parts.
4.CHECK BRAKE PEDAL
Check each item of brake pedal.
• LHD: Refer to BR-9, "Inspection and Adjustment".
• RHD: Refer to BR-77, "Inspection and Adjustment".
Is the inspection result normal? YES >> GO TO 5.
NO >> Adjust each item of brake pedal.
• LHD: Refer to BR-9, "Inspection and Adjustment".
• RHD: Refer to BR-77, "Inspection and Adjustment".
5.CHECK BRAKING FORCE
Check brake force using a brake tester.
Is the inspection result normal? YES >> GO TO 6.
NO >> Check 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 each components of brake system.
Excessive operation frequency
Description
ABS function and EBD function operates in excessive operation frequency.
Diagnosis Procedure
1.CHECK BRAKING FORCE
Check brake force using a brake tester.
Is the inspection result n ...
The braking distance is long
Description
Brake stopping distance is long when ABS function is operated.
Diagnosis Procedure
CAUTION:
Brake stopping distance on slippery road like rough road, gravel road or snowy
road may be ...
Other materials:
Front wheel hub and knuckle
Inspection
COMPONENT PART
Check that the mounting conditions (looseness, backlash) of each component
and component conditions
(wear, damage) are normal.
WHEEL HUB ASSEMBLY (BEARING-INTEGRATED TYPE)
Check the following items, and replace the part if necessary.
• Move wheel hub assembly in ...
Keyfob battery
Component Function Check
1.CHECK FUNCTION
Check door lock and unlock operation with keyfob button.
Is the inspection result normal?
YES >> Keyfob is OK.
NO >> Refer to DLK-528, "Diagnosis Procedure".
Diagnosis Procedure
1.CHECK KEYFOB BATTERY
Check by connecting a r ...
Precaution for Work
• When removing or disassembling each component, be careful not to damage or
deform it. If a component
may be subject to interference, be sure to protect it with a shop cloth.
• When removing (disengaging) components with a screwdriver or similar tool, be
sure to wrap the component
with a sho ...