Nissan Ariya: Symptom Diagnosis

• Parking Brake Does Not Release
• Parking Brake Does Not Operate
• The Parking Force Parking Brake Is Low
• The Braking Force of Parking Brake Is High

Parking Brake Does Not Release

Diagnosis Procedure

When the electric parking brake cannot be released by the parking brake switch or automatically releasing, following procedure can be released.

CAUTION:

• Never reuse the parking brake actuator.

• When replacing parking brake actuator, replace rear brake caliper assembly.

PERFORM THE SELF-DIAGNOSIS

With CONSULT

Perform self-diagnosis for “ABS”.

Is DTC detected?

YES>>

Check the DTC. Refer to DTC Index.

NO>>

GO TO 2.

CHECK REAR DISC BRAKE DRAG

Check if the rear disc brake is dragging. Refer to REAR DISC ROTOR : Periodic Maintenance Operation.

Is the rear disc brake dragging?

YES>>

Check the rear disc brake system. Refer to REAR BRAKE CALIPER ASSEMBLY : Inspection.

NO>>

GO TO 3.

DISCONNECT PARKING BRAKE ACTUATOR HARNESS CONNECTOR

Disconnect parking brake actuator harness connector from rear caliper assembly .

>>

GO TO 4.

REMOVE PARKING BRAKE ACTUATOR

Remove parking brake actuator from rear brake caliper assembly .

>>

GO TO 5.

RELEASE OF PARKING BRAKE

Rotate the rear brake caliper assembly spindle part clockwise.

Is the parking brake released?

YES>>

GO TO 6.

NO>>

Check the rear brake caliper assembly. Refer to REAR BRAKE CALIPER ASSEMBLY : Inspection.

REPLACE REAR CALIPER ASSEMBLY

Replace the rear caliper assembly. Refer to REAR BRAKE CALIPER ASSEMBLY : Removal & Installation.

CAUTION:

Never reuse the parking brake actuator.

>>

End of work.

Parking Brake Does Not Operate

Diagnosis Procedure

The electric parking brake is not applied even when the parking brake switch is pulled.

PERFORM THE SELF-DIAGNOSIS

With CONSULT

Perform self-diagnosis for “ABS”.

Is DTC detected?

YES>>

Check the DTC. Refer to DTC Index.

NO>>

GO TO 2.

CHECK PARKING BRAKE ACTUATOR

Pull or push parking brake switch, check operation sound of parking brake actuator.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

GO TO 3.

CHECK REAR DISC BRAKE SYSTEM

Check the rear disc brake system. Refer to REAR BRAKE CALIPER ASSEMBLY : Inspection.

Is the inspection result normal?

YES>>

Replace the ABS actuator and electric unit (control unit). Refer to ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) : Removal & Installation.

NO>>

Repair or replace the rear disc brake system. Refer to REAR BRAKE CALIPER ASSEMBLY : Removal & Installation.

The Parking Force Parking Brake Is Low

Diagnosis Procedure

The parking brake braking force is low and the vehicle moves backward when parked on an incline.

REAPPLY THE PARKING BRAKE (1)

1. Pull the parking brake switch, and apply the parking brake.

2. Pull the parking brake switch again for 2 seconds or more.

Is the Nissan Ariya vehicle moving backward?

YES>>

GO TO 2.

NO>>

Normal

PERFORM THE SELF-DIAGNOSIS

With CONSULT

Perform self-diagnosis for “ABS”.

Is any DTC detected?

YES>>

Check the DTC. Refer to DTC Index.

NO>>

GO TO 3.

CHECK REAR DISC BRAKE SYSTEM

Check the rear disc brake system.

• Rear brake pad: Refer to REAR BRAKE PAD : Inspection.

• Rear brake caliper (and parking brake actuator): Refer to REAR BRAKE CALIPER ASSEMBLY : Inspection.

• Rear disc rotor: Refer to REAR DISC ROTOR : Periodic Maintenance Operation.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace error-detected pars.

• Rear brake pad: Refer to REAR BRAKE PAD : Removal & Installation.

• Rear brake caliper (and parking brake actuator): Refer to REAR BRAKE CALIPER ASSEMBLY : Removal & Installation.

• Rear disc rotor: Refer to REAR BRAKE CALIPER ASSEMBLY : Removal & Installation.

REAPPLY THE PARKING BRAKE (2)

Pull the parking brake switch again.

Is the Nissan Ariya vehicle moving backward?

YES>>

Replace ABS actuator and electric unit (control unit). Refer to ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) : Removal & Installation.

NO>>

Normal

The Braking Force of Parking Brake Is High

Diagnosis Procedure

The parking brake breaking force is too high.

PERFORM THE SELF-DIAGNOSIS

With CONSULT

Perform self-diagnosis for “ABS”.

Is any DTC detected?

YES>>

Check the DTC. Refer to DTC Index.

NO>>

GO TO 2.

CHECK REAR DISC BRAKE SYSTEM (1)

Check if the rear disc brake is dragging. Refer to REAR DISC ROTOR : Periodic Maintenance Operation.

Is the rear disc brake dragging?

YES>>

Check the rear disc brake system. Refer to REAR BRAKE CALIPER ASSEMBLY : Inspection.

NO>>

GO TO 3.

CHECK REAR DISC BRAKE SYSTEM (2)

1. Depress the brake pedal 3 times or more.

2. Drive the Nissan Ariya vehicle at 30 km/h (19 MPH) or more.

3. Stop the vehicle.

4. Depress the brake pedal 3 times or more again.

Is the braking force of parking brake is high?

YES>>

Replace the rear brake caliper assembly. Refer to REAR BRAKE CALIPER ASSEMBLY : Removal & Installation.

NO>>

INSPECTION END