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Nissan

Nissan Ariya: Brake Control System

Diagnosis and Repair Work Flow

Work Flow

DETAILED FLOW

INTERVIEW FROM THE CUSTOMER

Clarify customer complaints before inspection. First of all, perform an interview utilizing diagnostic work sheet and reproduce the symptom as well as fully understand it. Ask customer about his/her complaints carefully. Check symptoms by driving Nissan Ariya vehicle with customer, if necessary. Refer to Diagnostic Work Sheet.

CAUTION:

Customers are not professional. Never guess easily like “maybe the customer means that...,” or “ maybe the customer mentions this symptom”.

>>

GO TO 2.

CHECK SYMPTOM

Reproduce the symptom that is indicated by the customer, based on the information from the customer obtained by interview. Also check that the symptom is not caused by fail-safe mode. Refer to Fail-safe.

CAUTION:

When the symptom is caused by normal operation, fully inspect each portion and obtain the understanding of customer that the symptom is not caused by a malfunction.

>>

GO TO 3.

PERFORM THE SELF-DIAGNOSIS

With CONSULT

  1. Power switch OFF (Auto ACC is ON).

  2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

  3. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

  4. Perform self-diagnosis for “ABS”.

Is DTC detected?

YES>>

Record or print self-diagnosis results and freeze frame data (FFD). GO TO 4.

NO>>

GO TO 6.

PERFORM DTC DIAGNOSIS PROCEDURE

With CONSULT

  1. Erase self-diagnostic results for “ABS”.

  2. Power switch OFF (Auto ACC is ON).

  3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

  4. Power switch ON without depressing the brake pedal.

  5. Perform confirmation procedures for the error-detected system.

    NOTE:

    If some DTCs are detected at the same time, determine the order for performing the diagnosis based on Refer to DTC Inspection Priority Chart.

Is DTC detected?

YES>>

GO TO 5.

NO>>

Check harness and connectors based on the information obtained by interview. Refer to Intermittent Incident.

REPAIR OR REPLACE ERROR-DETECTED PART

With CONSULT

  1. Repair or replace error-detected parts.

  2. Reconnect part or connector after repairing or replacing.

  3. When DTC is detected, erase self-diagnostic result for “ABS”.

    CAUTION:

    • Power switch OFF → ON → OFF after erase self-diagnosis result.

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

>>

GO TO 7.

IDENTIFY ERROR-DETECTED SYSTEM BY SYMPTOM DIAGNOSIS

Estimate error-detected system based on symptom diagnosis and perform inspection.

Can the error-detected system be identified?

YES>>

GO TO 7.

NO>>

Check harness and connectors based on the information obtained by interview. Refer to Intermittent Incident.

FINAL CHECK

With CONSULT

  1. Check the reference value for “ABS”.

  2. Recheck the symptom and check that the symptom is not reproduced on the same conditions.

Is the symptom reproduced?

YES>>

GO TO 3.

NO>>

INSPECTION END

Diagnostic Work Sheet

Description

  • In general, customers have their own criteria for a problem. Therefore, it is important to understand the symptom and status well enough by asking the customer about his/her concerns carefully. To systemize all the information for the diagnosis, prepare the interview sheet referring to the interview points.

  • In some cases, multiple conditions that appear simultaneously may cause a DTC to be detected.

INTERVIEW SHEET SAMPLE

Interview sheet
Customer name MR/MS Registration number Initial year registration
Nissan Ariya Vehicle type VIN
Storage date Engine / Traction motor Mileage km (Mile)
Symptom □ Does not operate ( ) function

□ Warning lamp turns ON.

□ Other (
)
□ Noise (Location:  )   □ Vibration (Location:  )
□ Other ( )
First occurrence □ Recently □ Other ( )
Frequency of occurrence □ Always □  Under a certain conditions of □ Sometimes (  time(s)/day)
Climate conditions □ Irrelevant
Weather □ Fine □ Cloud □ Rain □Snow □ Others ( )
Temperature □ Hot □Warm □ Cool □ Cold □ Temperature [Approx. °C (°F)]
Relative humidity □ High □ Moderate □ Low
Road conditions □ Ordinary road □ Highway □ Mountainous road (uphill or downhill) □ Rough road
Operating condition, etc.

□ Irrelevant

□ When engine/traction motor starts □ During idling

□ During driving □ During acceleration □ At constant speed driving

□ During deceleration

□ Immediately before stop [Nissan Ariya Vehicle speed: Approx. km/h (MPH)]

□ During cornering (right curve or left curve)

□ When steering wheel is steered (to right or to left)
Other conditions VDC setting status □ On □ Off

Use of other functions

(ex. ICC)
□ Yes □ No ( )
Presence of non-genuine parts installation □ Yes □ No ( )

Memo  

Additional Service When Replacing Abs Actuator and Electric Unit (control Unit)

Work Procedure

Description

Vehicle specification needs to be written with CONSULT because it is not written after replacing the ABS actuator and electric unit (control unit).

For details the operation, refer to “CONSULT Operation Manual”.

WRITING VEHICLE SPECIFICATION

With CONSULT

Perform writing Nissan Ariya vehicle specification to ABS actuator and electric unit (control unit) according to "Replace ECU" in CONSULT Operation Manual.

>>

GO TO 2.

PERFORM NECESSARY WORK

With CONSULT

  1. Perform configuration. Refer to Work Procedure.

  2. Perform air bleeding. Refer to BRAKE FLUID : Air Bleeding.

  3. Perform calibration of decel G sensor. Refer to Work Procedure.

  4. Perform calibration of side G sensor. Refer to Work Procedure.

  5. Perform adjustment of initialization position. Refer to Work Procedure.

  6. Perform self-diagnosis for “All DTC Reading”.

  7. Erase the memory of self-diagnosis results.

  8. Actual driving 3 km or more.

    NOTE:

    Save the odmeter information of combination meter in ABS actuator and electric unit (control unit).

>>

WORK END

Configuration [abs Actuator and Electric Unit (control Unit)]

Work Procedure

Vehicle specification needs to be written with CONSULT because it is not written after replacing the ABS actuator and electric unit (control unit).

For details the operation, refer to “CONSULT Operation Manual”.

WRITING VEHICLE SPECIFICATION

With CONSULT

Perform writing Nissan Ariya vehicle specification to ABS actuator and electric unit (control unit) according to "Replace ECU" in CONSULT Operation Manual.

>>

WORK END

Adjustment of Steering Angle Sensor Neutral Position

Work Procedure

Always adjust the neutral position of steering angle sensor before driving when the following operation is performed.

×: Required —: Not required

Procedure Adjust the neutral position of steering angle sensor
Removing/ installing ABS actuator and electric unit (control unit)
Replacing ABS actuator and electric unit (control unit)
Removing/installing steering angle sensor ×
Replacing steering angle sensor ×
Removing/installing steering components ×
Replacing steering components ×
Removing/installing front suspension components ×
Replacing front suspension components ×
Removing/installing tire
Replacing tire
Tire rotation
Adjusting front wheel alignment. ×

CAUTION:

Always use CONSULT when adjusting the neutral position of steering angle sensor. (It cannot be adjusted other than with CONSULT.)

CHECK THE VEHICLE STATUS (1)

Stop vehicle with front wheels in the straight-ahead position.

Does the Nissan Ariya vehicle stay in the straight-ahead position?

YES>>

GO TO 2.

NO>>

Steer the steering wheel to the straight-ahead position. Stop the Nissan Ariya vehicle.

ADJUST NEUTRAL POSITION OF STEERING ANGLE SENSOR

With CONSULT

  1. Power switch ON.

    CAUTION:

    Never start set the Nissan Ariya vehicle to READY.

  2. Select “ABS”, “Work support” and “Steering angle sensor adjustment” in this order.

  3. Select “START”.

    CAUTION:

    Never touch steering wheel while adjusting steering angle sensor.

  4. After approximately 10 seconds, select “END”.

  5. Power switch OFF, and then turn it ON again.

    CAUTION:

    Be sure to perform the operation above.

>>

GO TO 3.

CHECK DATA MONITOR (1)

With CONSULT

  1. The Nissan Ariya vehicle is either pointing straight ahead, or the vehicle needs to be moved. Stop when it is pointing straight ahead.

  2. Select “ABS”, “Data monitor”, and “Steering angle” in the order. Check that the signal is within the specified value. Refer to Diagnosis Description.

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

GO TO 4.

CHECK STEERING COMPONENT PARTS

Check the installation condition of steering component parts. Refer to STEERING WHEEL : Periodic Maintenance Operation.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair or replace error-detected parts. GO TO 5.

CHECK FRONT SUSPENSION COMPONENT PARTS

Check the installation condition of front suspension component parts. Refer to FRONT SUSPENSION ASSEMBLY : Periodic Maintenance Operation.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair or replace error-detected parts. GO TO 6.

CHECK FRONT WHEEL ALIGNMENT

Check the front wheel alignment. Refer to WHEEL ALIGNMENT : Inspection.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Adjust the front wheel alignment. Refer to WHEEL ALIGNMENT : Adjustment. GO TO 7.

CHECK THE Nissan Ariya Vehicle STATUS (2)

Stop vehicle with front wheels in the straight-ahead position.

Does the Nissan Ariya vehicle stay in the straight-ahead position?

YES>>

GO TO 8.

NO>>

Steer the steering wheel to the straight-ahead position. GO TO 8.

CHECK DATA MONITOR (2)

With CONSULT

  1. The Nissan Ariya vehicle is either pointing straight ahead, or the vehicle needs to be moved. Stop when it is pointing straight ahead.

  2. Select “ABS”, “Data monitor”, and “Steering angle” in the order. Check that the signal is within the specified value. Refer to Diagnosis Description.

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

GO TO 9.

CHECK DATA MONITOR (3)

With CONSULT

  1. The Nissan Ariya vehicle is either pointing straight ahead, or the vehicle needs to be moved.

    CAUTION:

    • Drive the Nissan Ariya vehicle at approximately 30 km/h (19MPH) or more for 300 m (985 ft) or more.

    • Never use tester

  2. The Nissan Ariya vehicle is either pointing straight ahead, or the vehicle needs to be moved. Stop when it is pointing straight ahead.

  3. Select “ABS”, “Data monitor”, and “Steering angle” in the order. Check that the signal is within the specified value. Refer to Diagnosis Description.

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

GO TO 1.

ERASE SELF-DIAGNOSIS MEMORY

With CONSULT

  1. Record or print self-diagnosis results and freeze frame data (FFD).

  2. Erase self-diagnosis result for "ABS".

Are the memories erased?

YES>>

End of work.

NO>>

Check the DTC. Refer to DTC Index.

EPS SYSTEM LEARNING

  1. Pull the parking brake switch.

    NOTE:

    Check to make sure that the parking brake switch indicator is turned ON.

  2. Power switch OFF.

  3. Get out of the Nissan Ariya vehicle and close all doors.

  4. Wait 65 seconds.

    NOTE:

    • Check to make sure that the parking brake switch indicator is turned OFF.

    • If the rear brake calipers are hot, wait up to an hour until parking brake indicator light on the switch turns OFF. Once indicator light on the switch turns OFF, move to next step.

  5. Set the Nissan Ariya vehicle to READY.

    CAUTION:

    Never drive the vehicle.

>>

WORK END

Calibration of G Sensor

Work Procedure

Always perform the decel G sensor calibration and side G sensor calibration before driving when the following operation is performed.

×: Required —: Not required

Procedure
  • Decel G sensor calibration

  • Side G sensor calibration

Removing/ installing ABS actuator and electric unit (control unit) ×
Replacing ABS actuator and electric unit (control unit) ×
Removing/installing steering components
Replacing steering components
Removing/installing front suspension components
Replacing front suspension components
Removing/installing tire
Replacing tire
Tire rotation
Adjusting front wheel alignment.

CAUTION:

Always use CONSULT for the decel G sensor calibration. (It cannot be adjusted other than with CONSULT.)

CHECK THE VEHICLE STATUS

  1. Steer the steering wheel to the straight-ahead position. Stop the Nissan Ariya vehicle on level surface.

  2. Power switch OFF.

Is the vehicle stopped in the straight-ahead position on level surface?

YES>>

GO TO 2.

NO>>

Steer the steering wheel to the straight-ahead position. Stop the Nissan Ariya vehicle on level surface.

PERFORM DECEL G SENSOR CALIBRATION, SIDE G SENSOR CALIBRATION

CAUTION:

  • Never allow passenger or load on the Nissan Ariya vehicle.

  • Never apply vibration to the vehicle body when opening or closing door during calibration.

With CONSULT

  1. Power switch ON.

    CAUTION:

    Never start set the Nissan Ariya vehicle to READY.

  2. Select “ABS”, “Work support”, “Decel G sensor calibration” in this order.

  3. Select “START”.

  4. After approximately 10 seconds, select “END”.

  5. Select “ABS”, “Work support”, “Side G sensor calibration” in this order.

  6. Select “START”.

  7. After approximately 10 seconds, select “END”.

>>

GO TO 3.

CHECK DATA MONITOR

With CONSULT

  1. Drive the Nissan Ariya vehicle. Steer the steering wheel to the straight-ahead position. Stop the vehicle on level surface.

  2. Select “ABS”, “Data monitor”, “Decel G sensor” and “Side G sensor” in this order. Check that the signal is within the specified value. Refer to Values On The Diagnosis Tool.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

GO TO 1.

ERASE SELF-DIAGNOSIS MEMORY

With CONSULT

  1. Record or print self-diagnosis results and freeze frame data (FFD).

  2. Erase self-diagnosis result for "ABS".

Are the memories erased?

YES>>

INSPECTION END

NO>>

Check the DTC. Refer to DTC Index.

Adjustment of Initial Position

Work Procedure

CAUTION:

When performing the following operations, always use CONSULT (It cannot be performed by any means other than CONSULT.), for performing "INITIALIZATION POSITION ADJUSTMENT" of "Work support".

×: Required —: not required

Procedure Initialization position adjustment
Removing/ installing ABS actuator and electric unit (control unit)
Replacing ABS actuator and electric unit (control unit) ×
Removing/ installing rear brake pad (When not pressing piston of rear brake caliper assembly)
Removing/ installing rear brake pad (When pressing piston of rear brake caliper assembly) ×
Replacing rear brake pad ×
Removing/ installing rear brake caliper assembly
Replacing rear brake caliper assembly ×
Replacing rear disc rotor ×
Removing/ installing parking brake switch
Replacing parking brake switch

CAUTION:

When performing the following operations, always use CONSULT. (It cannot be performed by any means other than CONSULT.)

PERFORM INITIALIZATION POSITION ADJUSTMENT

  1. Select "ABS", "Work support", and "Initialization position adjustment" according to this order.

    CAUTION:

    • Never operate the parking brake switch.

    • Never depress the brake pedal.

  2. Touch "START".

>>

GO TO 2.

PERFORM THE SELF-DIAGNOSIS

With CONSULT

  1. Power switch OFF (Auto ACC function ON).

  2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

  3. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

  4. Erase self-diagnosis results for "ABS".

  5. Pull parking brake switch to activate electric parking brake.

  6. Push parking brake switch to release electric parking brake.

  7. Perform self-diagnosis for “ABS”.

Is malfunction detected?

YES>>

Check the DTC. Refer to DTC Index.

NO>>

INSPECTION END

Removal/replacement of Rear Brake Pad or Rear Brake Caliper

Work Procedure

CAUTION:

When performing the following operations, always use CONSULT, for performing “Start brake pad replacement”, “Finish brake pad replacement” of “Work support”.

NOTE:

When perform "Finish brake pad replacement", "Initialization position adjustment" will also be performed.

×: Required —: not required

Procedure
  • Start brake pad replacement

  • Finish brake pad replacement

  • Initialization position adjustment

Removing/installing ABS actuator and electric unit (control unit)
Replacing ABS actuator and electric unit (control unit)
Removing/installing rear brake pad (When not pressing piston of rear brake caliper assembly)
Removing/installing rear brake pad (When pressing piston of rear brake caliper assembly) ×
Replacing rear brake pad ×
Removing/installing rear brake caliper assembly
Replacing rear brake caliper assembly ×
Replacing rear disc rotor ×
Removing/installing parking brake switch
Replacing parking brake switch

CAUTION:

When performing the following operations, always use CONSULT. (It cannot be performed by any means other than CONSULT.)

BEFORE REMOVAL/REPLACEMENT OF REAR BRAKE PAD OR REAR CALIPER ASSEMBLY

With CONSULT

  1. Power switch OFF to ON.

    CAUTION:

    Never start the set the Nissan Ariya vehicle to READY.

  2. Select “ABS”, “Work support”, and “Start brake pad replacement” according to this order.

    CAUTION:

    • Never operate the parking brake switch.

    • Never depress the brake pedal.

  3. Touch “START”.

>>

GO TO 2.

REMOVAL AND INSTALLATION/REPLACEMENT OF REAR BRAKE PAD OR REAR BRAKE CALIPER ASSEMBLY

Replace the rear brake pad or rear brake caliper.

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

  • Rear brake caliper assembly: Refer to REAR BRAKE CALIPER ASSEMBLY : Removal & Installation.

>>

GO TO 3.

AFTER INSTALLATION/REPLACEMENT OF REAR BRAKE PAD OR REAR CALIPER ASSEMBLY

With CONSULT

  1. Select “ABS”, “Work support”, and “Finish brake pad replacement” according to this order.

    CAUTION:

    • Never operate the parking brake switch.

    • Never depress the brake pedal.

  2. Touch “START”.

>>

GO TO 4.

PERFORM THE SELF-DIAGNOSIS

With CONSULT

  1. Pull parking brake switch to activate electric parking brake.

  2. Push parking brake switch to release electric parking brake.

  3. Perform self-diagnosis for “ABS”.

Is malfunction detected?

YES>>

Check the DTC. Refer to DTC Index. GO TO 5.

NO>>

GO TO 5.

CHECK DATA MONITOR

With CONSULT

Select “ABS”, “Data monitor”, “Brake force (left)” and “Brake force (right)” according to this order. Check that signals are within the specified value. Refer to Values On The Diagnosis Tool.

Is the check result normal?

YES>>

GO TO 6.

NO>>

GO TO 1.

ERASE SELF-DIAGNOSIS MEMORY

With CONSULT

  1. Power switch OFF to ON.

  2. Erase self-diagnosis results for “ABS”.

Is the memory erased?

YES>>

INSPECTION END

NO>>

Check the DTC. Refer to DTC Index.

Change of System Mode

Work Procedure

CAUTION:

When the following operations are performed, always use CONSULT, for performing “SYSTEM MODE CHANGE” of “Work support”.

×: Required —: not required

Procedure System mode change
Removing/installing ABS actuator and electric unit (control unit)
Replacing ABS actuator and electric unit (control unit)
Removing/installing rear brake pad (When not pressing piston of rear brake caliper assembly)
Replacing rear brake caliper assembly
Removing/installing parking brake switch
Replacing parking brake switch
When the system mode needs to be changed from “On” to “Off”

CAUTION:

When performing the following operations, always use CONSULT. (It cannot be performed by any means other than CONSULT.)

CHANGE OF SYSTEM MODE

With CONSULT

  1. Select “ABS”, “Work support”, and “System mode change” according to this order.

    CAUTION:

    Never operate the parking brake switch.

  2. Touch “Off”.

>>

GO TO 2.

PERFORM THE SELF-DIAGNOSIS

With CONSULT

  1. Pull parking brake switch to activate electric parking brake.

  2. Push parking brake switch to release electric parking brake.

  3. Perform self-diagnosis for “ABS”.

Is malfunction detected?

YES>>

Check the DTC. Refer to DTC Index.

NO>>

INSPECTION END

 

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