Nissan Armada 2025-2026 Service and Repair Manual: Brake Pedal Vibration or Operation Sound Occurs

Description

• Brake pedal vibrates and motor sound from ABS actuator and electric unit (control unit) occurs, when the engine starts.

• Brake pedal vibrates during braking.

CAUTION:

Vibration may be felt during brake pedal is lightly depressed (just placing a foot on it) in the following conditions. This is normal.

• When shifting gears

• When driving on slippery road

• During cornering at high speed

• When passing over bumps or grooves [Approximately 50 mm (1.97 in) or more]

• When pulling away just after starting engine [at approximately 10 km/h (6.2 MPH) or more]

Diagnosis Procedure

SYMPTOM CHECK 1

Check that there are pedal vibrations when the engine is started.

Do vibrations occur?

YES>>

GO TO 2.

NO>>

Check the brake pedal. Refer to Inspection.

SYMPTOM CHECK 2

Check that motor sound from ABS actuator and electric unit (control unit) occurs when the engine starts.

Does the operation sound occur?

YES>>

GO TO 3.

NO>>

Perform self-diagnosis for “ABS” with CONSULT.

SYMPTOM CHECK 3

Check symptoms when electrical component (headlamps, etc.) switches are operated.

Does the symptom occur?

YES>>

Check that radio (including wiring), antenna and antenna lead-in wires are not located near ABS actuator and electric unit (control unit). Move them if they are located near ABS actuator and electric unit (control unit).

NO>>

Perform self-diagnosis for “ABS” with CONSULT.