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Home >> Infiniti >> 2019 >> QX80 Limited >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Audio System & Navigation System (Diagnostics) (1 Of 2) >> Basic Inspection >> Telematics System >> Additional Service When Replacing TCU >> Work Procedure >> Audio System & Navigation System (Diagnostics) (1 Of 2)
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Audio System & Navigation System (Diagnostics) (1 Of 2)

  1. READING OF VIN DATA 

    SYMBOL WITH CONSULT

    Select "SAVE VIN DATA", then "Start" on "SAVE VIN DATA" screen to save the VIN data stored in replaced TCU in CONSULT.

    NOTE: If it cannot be saved, writing operation must be performed manually.

    GO TO 2.

  2. CHECKING TYPE ID 

    SYMBOL WITH CONSULT

    1. Select "Before ECU Replacement" of "Read / Write Configuration".
    2. Check that "Type ID" is displayed on CONSULT.

    Is "Type ID" displayed?

    YES

    GO TO 3.

    NO

    GO TO 7.

  3. VERIFYING TYPE ID (1) 

    SYMBOL WITH CONSULT

    Compare a "Type ID" displayed on the CONSULT screen with the one searched by using FAST (service parts catalogue) to check that these "Type ID" agree with each other.

    NOTE: For the "Type ID" searched by using FAST (service parts catalog), use the last five digits of the "Type ID".

    GO TO 4.

  4. SAVING TYPE ID 

    SYMBOL WITH CONSULT

    Save "Type ID" on CONSULT.

    GO TO 5.

  5. TCU REPLACEMENT 

    Replace TCU. Refer to TCU : Removal & Installation .

    GO TO 6.

  6. WRITING TYPE ID (AUTOMATIC WRITING) 

    SYMBOL WITH CONSULT

    1. Select "After ECU Replacement" of "Re/programming, Configuration" or that of "Read / Write Configuration".
    2. Select the "Type ID" agreeing with the one stored on CONSULT and the one searched by using FAST (service parts catalogue) to write the "Type ID" into the TCU.

    GO TO 9.

  7. TCU REPLACEMENT 

    Replace TCU. Refer to TCU : Removal & Installation .

    GO TO 8.

  8. WRITING TYPE ID (MANUAL WRITING) 

    SYMBOL WITH CONSULT

    1. Select "Manual selection".
    2. Select the "Type ID" searched by using FAST (service parts catalogue) to write the "Type ID" into the TCU.
      NOTE: For the "Type ID" searched by using FAST (service parts catalog), use the last five digits of the "Type ID".

    GO TO 9.

  9. NOTICE TO CARRIER ATX HELP DESK 

    Contact ATX help desk to notice the termination of replaced TCU and connection of new TCU. (VIN is required)

    Can ID data be saved to CONSULT at 1st step?

    YES

    GO TO 10.

    NO

    GO TO 11.

  10. AUTOMATIC WRITING OF VIN DATA TO TCU 

    SYMBOL WITH CONSULT

    Select "WRITE VIN (SAVED DATA)", then "Start" at "WRITE VIN (SAVED DATA)" screen to write the VIN data saved in CONSULT into new TCU.

    GO TO 12.

  11. MANUAL WRITING OF VIN DATA TO TCU 

    SYMBOL WITH CONSULT

    Select "WRITE VIN (MANUAL INPUT)", "WRITE VIN (MANUAL INPUT)" then "Start" on changing screen to write the VIN data saved into new TCU.

    GO TO 12.

  12. TCU ACTIVATION 

    SYMBOL WITH CONSULT

    1. Wait for 5 seconds or more after turning the ignition switch ON.
    2. Touch "TELEMATICS" on the CONSULT screen.
    3. After performing System Call of CONSULT, touch the "Work support" tab.
    4. On the "Work support" screen of CONSULT, select "TCU ACTIVATE SETTING" and touch "Start".
    5. On the "TCU ACTIVATE SETTING" screen, touch "Start" to set to ON. Touch "End".
    6. Exit from CONSULT.
    7. Turn the ignition switch OFF.
    8. Wait (at least 10 seconds) until the ignition switch indicator turns OFF to shut down TCU.

    WORK END.

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