2004 Infiniti Q45FACTORY OEM SERVICE PROCEDURE

Setting Up

  1. Install the Reprogramming Card into CONSULT-II.
    • The Reprogramming Software Card is the "orange" Card.
    • Use slot A-top slot (see Fig 1).
    2. Fig 1: Inserting Card
    G00438907Courtesy of NISSAN MOTOR CO., U.S.A.
  2. Connect the AC power supply to CONSULT-II.
  3. Connect CONSULT-II to the ASIST PC with the special Ethernet cable (P/N 02002554 is printed on the cable).
    1. Connect one end to CONSULT-II at the "PC port".
    2. Connect the other end to the ASIST PC at the "Ethernet card" connection port.
  4. Confirm the CONSULT-II date and time are correctly set as follows:

    (This is necessary to provide a valid print-out for warranty claims.)

    1. With the Reprogramming card in slot A, turn "ON" CONSULT-II.
    2. Touch SUB MODE  .
    3. Touch SET DATE  (see Fig 2).
      1. If the date is not correct, touch the MONTH, DAY or YEAR as needed. Then adjust it by using arrow keys. Once done, press SAVE, press BACK, and go to step D.
      2. If the date is OK, press BACK and go to step D.
      4. Fig 2: Set Date & Set Time
      G00438908Courtesy of NISSAN MOTOR CO., U.S.A.
    4. Touch SET TIME  (see Fig 2).
      1. If time is not correct, touch the HOUR, MINUTE or AM/PM as needed. Then adjust it by using arrow keys. Once done, press SAVE, press BACK and go to step 5.
      2. If time is OK, press BACK and go to step 5.
    IMPORTANT:
    • If your ASIST PC is already being used to perform ECM Reprogramming, proceed to step 5.
    • If you are unsure whether your ASIST PC has already been set up for ECM reprogramming, look in ASIST, under "CONSULT Utilities" - "CONSULT-II Info" - "INFINITI" - "ECU Reprogramming". This will give you instructions for setting the Ethernet (IP) Address of the ASIST PC and CONSULT-II. You will need to do this before performing ECM reprogramming. 

    5. DOWNLOAD (TRANSFER) DATA FROM ASIST INTO CONSULT-II 

  5. From the ASIST PC main menu screen, select "CONSULT UTILITIES"  (see Fig 3).
    6. Fig 3: Consult Utilities
    G00438909Courtesy of NISSAN MOTOR CO., U.S.A.
  6. From the "CONSULT UTILITIES" screen, select "ECM / TCM DATA" (see ).
    7. Fig 4: ECM/TCM DATA
    G00438910Courtesy of NISSAN MOTOR CO., U.S.A.
  7. Select the "ECU REPROGRAMMING DATA" (see ) as follows:
    Fig 5: Selecting ECU REPROGRAMMING DATA
    G00438911Courtesy of NISSAN MOTOR CO., U.S.A.
    1. Select vehicle model and model year.
    2. Select the correct reprogramming data:
      1. Locate the specific "Model Configuration" (Example: VQ35 4A/T ASCD).
        NOTE:
        • Model Configuration may include items like engine type, transmission type, and vehicle options such as ASCD, TCS, ABS, etc.
        • Vehicle configuration can be verified using the "Current ECM P/N" chart. This will be shown in the TSB that told you to reprogram the ECM.
      2. Select (click on) the "To" number.
        NOTE: Select (click on) the "To" number.
      3. Write the "To" number on the Repair Order. You will need it later in the reprogramming process.
    3. Click on the "Add" button to add data to the "File(s) selected" list on the right side of the screen.
    4. Click the "CONTINUE" button to proceed with CONSULT-II setup.
  8. Turn "ON" CONSULT-II as shown in Fig 6.
    9. Fig 6: Turn On Consult-II
    G00438912Courtesy of NISSAN MOTOR CO., U.S.A.
  9. Select Transfer files via LAN (see Fig 7).
    NOTE: If you accidentally choose a menu option other than "Transfer Files via LAN"; turn CONSULT-II "OFF", and then back "ON" as shown in Fig 6 above.
    10. Fig 7: Selecting Transfer Files Via LAN
    G00438914Courtesy of NISSAN MOTOR CO., U.S.A.

    Set the CONSULT-II unit down for now and go to your ASIST PC. 

  10. Transfer (download) data from ASIST into CONSULT-II.
    1. On the ASIST screen, click on "Transfer" (see Fig 8).
      Fig 8: Assist Screen
      G00438913Courtesy of NISSAN MOTOR CO., U.S.A.
      • Data transfer will take about 15 seconds per file.
      • Transfer progress is displayed on the ASIST screen (see Fig 8).
    2. Wait until the data transfer is complete (see CAUTION below).
    CAUTION: DO NOT DISCONNECT THE ETHERNET CABLE UNTIL "COMPLETE" IS DISPLAYED AS SHOWN IN  Fig 9 . 
    11. Fig 9: File Transfer Complete Screeen
    G00438915Courtesy of NISSAN MOTOR CO., U.S.A.
  11. When transfer is complete (see Fig 9):
    1. Select (click on) "Okay", then "MAIN MENU".
    2. Turn "OFF" CONSULT-II.
    3. Disconnect the AC power cord and the Ethernet cable from CONSULT-II.

    DOWNLOAD NEW DATA FROM CONSULT-II INTO THE VEHICLE (REPROGRAM ECM) 

    CAUTION: Perform this operation in four (4) sections. DO NOT SKIP any of these sections. They must be performed in order, 1 through 4.
    • Section 1: Connect a battery charger and CONSULT-II to the vehicle.
    • Section 2: Confirm the vehicle battery voltage and CONSULT-II "Charger Input".
    • Section 3: Perform ECM Reprogramming.
    • Section 4: Perform ECM Reprogram Confirmation.

    12. Section 1: Connect a battery charger and CONSULT-II to the vehicle. 

  12. Confirm the ignition switch is "OFF".
  13. Connect a battery charger to the vehicle battery.
    1. Set the charger at a low charge rate (trickle charge).
      IMPORTANT: Do not perform ECU reprogramming without connecting a battery charger to the vehicle's battery. Permanent ECU damage can occur.

      Connecting a vehicle battery charger will maintain:

      • Proper CONSULT-II power supply during reprogramming-very important if the CONSULT-II battery is low.
      • Vehicle battery voltage level-especially on late model vehicles where the cooling fans come on during reprogramming.

  14. Connect CONSULT-II to the vehicle using the DLC-II cable with black Converter Box (see Fig 10).
    IMPORTANT:
    • Make sure the DLC-II is straight and fully plugged in to the vehicle.
    • Make sure all other DLC-II cable connections shown in Fig 10 are connected properly.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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