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Home >> Infiniti >> 2023 >> QX60 Pure, AWD >> Repair and Diagnosis >> Brakes >> Traction Control >> Brake Control System (VDC/TCS/Abs) >> Basic Inspection >> Additional Service When Replacing Abs Actuator And Electric Unit (Control Unit) >> Work Procedure
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Work Procedure

Description 

When replacing the ABS actuator and electric unit (control unit), the procedures of BEFORE REPLACEMENT and AFTER REPLACEMENT must be performed.

BEFORE REPLACEMENT 

When replacing the ABS actuator and electric unit (control unit), save "Operation log".

AFTER REPLACEMENT 

After replacing the ABS actuator and electric unit (control unit), the following items must be performed:

NOTE: SYMBOL Save the odometer information of combination meter in ABS actuator and electric unit (control unit).

Work Procedure [Before Replace ABS actuator and electric unit (control unit) ] 

  1. SAVE "OPERATION LOG" 
    1. SYMBOL CONSULT Save "Operation Log", according to the procedure of "Programming" in CONSULT Operation Manual.
      NOTE: SYMBOL ABS actuator and electric unit (control unit) part number is saved in "Operating Log" saved in CONSULT.

    >>

    • Replace the ABS actuator and electric unit (control unit). Refer to Removal and Installation .
    • After replacing the ABS actuator and electric unit (control unit), perform necessary work.

Work Procedure [After Replace ABS actuator and electric unit (control unit) ] 

  1. CHECK "OPERATION LOG" 
    1. SYMBOL CONSULT Check "Operation Log" saved before replacing the ABS actuator and electric unit (control unit), according to the procedure of "Programming" in CONSULT Operation Manual.
      NOTE: SYMBOL For the vehicle that the programming is to be performed, check if "Operation Log" of Vehicle Identification Number (VIN) is in Saved Data List.

    Is there an applicable Operation Log in the Saved Data List?

    YES>>

    GO TO 2.

    NO>>

    GO TO 3.

  2. PERFORM ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) PROGRAMMING 
    1. SYMBOL CONSULT Perform ABC actuator and electric unit (control unit) programming, according to "Programming" of CONSULT Operation Manual. Refer to CONSULT Operation Manual.
      CAUTION:

      During programming, maintain the following conditions:

      • Ignition switch: ON
      • Electric parking brake: Apply
      • Electric load: OFF
      • Brake pedal: Not depressed
      • 12 V battery voltage: 12 - 13.5 V (Check the value displayed on the CONSULT screen.)

    >>

    GO TO 5.

  3. READ IN ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) PART NUMBER BY "EPC LINKED" 
    1. Obtain ABS actuator and electric unit (control unit) part number by EPC (service parts catalog), according to the procedure of EPC linked in CONSULT Operation Manual. Refer to CONSULT Operation Manual.
      CAUTION:

      Select "EPC linked".

      NOTE: SYMBOL "EPC linked" allows an appropriate programming by obtaining ECU part number from EPC (service parts catalog) even when the part number cannot be obtained from the old ECU used before replacing with a new one.

    >>

    GO TO 4.

  4. PERFORM PROGRAMMING (EPC LINKED) 
    1. SYMBOL CONSULT Perform ABS actuator and electric unit (control unit) programming according to the procedure of EPC linked in CONSULT Operation Manual. Refer to CONSULT Operation Manual.
      CAUTION:

      During programming, maintain the following conditions:

      • Ignition switch: ON
      • Electric parking brake: Apply
      • Electric load: OFF
      • Brake pedal: Not depressed
      • 12 V battery voltage: 12 - 13.5 V (Check the value displayed on the CONSULT screen.)

    >>

    GO TO 5.

  5. PERFORM NECESSARY WORK 
      1. Perform configuration. Refer to Description .
      2. Perform air bleeding. Refer to Bleeding Brake System .
      3. Perform adjustment of steering angle sensor neutral position. Refer to Description .
      4. Perform calibration of decel G sensor. Refer to Work Procedure .
      5. Calibration of side G sensor. Refer to Work Procedure .
      6. Adjustment of rear brake caliper initialization position. Refer to Work Procedure .
      7. Perform the change of system mode. Refer to Work Procedure .
      8. Select "Self Diagnostic Result" mode of "ABS".
      9. Erase "Self Diagnostic Result" mode of "ABS".

    >>

    End of work.