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Nissan Armada 2025-2026 Service and Repair Manual: Unexpected Brake Pedal Reaction

Nissan Armada 2025-2026 Service and Repair Manual / Brakes / Brake System / Unexpected Brake Pedal Reaction

Diagnosis Procedure

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

CHECK AXLE

Check that there is no significant looseness of axle.

  • Front axle

    • 2WD models: Refer to Inspection.

    • 4WD models: Refer to Inspection.

  • Rear axle: Refer to Inspection.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts.

CHECK DISC ROTOR

Check the disc rotor runout.

  • Front: Refer to Inspection and Adjustment.

  • Rear: Refer to Inspection and Adjustment.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Grind or replace rotor.

CHECK BRAKE FLUID LEAKAGE

Check the brake fluid leakage.

  • Front: Refer to Inspection.

  • Rear: Refer to Inspection.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace error-detected parts.

CHECK BRAKE PEDAL

Check the brake pedal items. Refer to Inspection and Adjustment.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Adjust the brake pedal items. Refer to Inspection and Adjustment.

CHECK BRAKING FORCE

Check the braking force.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Check each component of brake system.

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 component of brake system.

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