Reprogramming the ECM
REPROGRAMMING THE ECMReprogramming should be performed by an OBDII Certified technician.
The reprogramming procedure involves three general steps:
^ Setting up
^ Download (transfer) data from ASIST into CONSULT-II.
^ Download new data from CONSULT-II into the vehicle (Reprogram the ECM).
SETTING UP:
1. Install the Reprogramming Card into CONSULT-II.
^ Make sure CONSULT-II is disconnected from the vehicle and turned OFF.
^ The Reprogramming Software Card is the "orange" Card.
^ Use slot A-top slot (see Figure 1).
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).
A. Connect one end to CONSULT-II at the "PC port".
B. 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.)
A. With the Reprogramming card in slot A, turn "ON" CONSULT-II.
B. Touch [SUB MODE].
C. Touch [SET DATE] (see Figure 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.
D. Touch [SET TIME] (see Figure 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 NOTE:
^ If your ASIST PC is already being used to perform ECM Reprogramming, proceed to step 5 below.
^ 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" - "NISSAN" - "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.
DOWNLOAD (TRANSFER) DATA FROM ASIST INTO CONSULT-II
5. From the ASIST PC main menu screen, select "CONSULT UTILITIES" (see Figure 3).
6. From the "CONSULT UTILITIES" screen, select "ECM / TCM DATA" (see Figure 4).
7. Select the "ECU REPROGRAMMING DATA" (see Figure 5) as follows:
A. Select vehicle model and model year.
B. Select the correct reprogramming data:
1) Locate the specific "Model Configuration" (Example: QR25 A/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" in Chart A.
2) Select (click on) the "To number.
NOTE:
The "To number reads: 23710-XXXXX.
3) Write the "To" number on the Repair Order. You will need it later in the reprogramming process.
C. Click on the "Add" button to add data to the "File(s) selected" list. This list is on the right side of the screen.
D. Click the "CONTINUE" button to proceed with CONSULT-II setup.
8. Turn "ON" CONSULT-II as shown in Figure 6.
9. Select [Transfer files via LAN] (see Figure 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 Figure 6 above.
Set the CONSULT-II unit down for now and go to your ASIST PC.
10. Transfer (download) data from ASIST into CONSULT-II.
A. On the ASIST screen, click on "Transfer" (see Figure 8).
^ Data transfer will take about 15 seconds.
^ Transfer progress is displayed on the ASIST screen (see Figure 8).
B. Wait until the data transfer is complete (see CAUTION below).
CAUTION:
DO NOT DISCONNECT THE ETHERNET CABLE UNTIL "COMPLETE" IS DISPLAYED AS SHOWN IN FIGURE 9.
^ If the cable is disconnected before "Complete" is displayed, you MUST restart the transfer (download) procedure; otherwise ECM damage can occur.
6 If the cable is disconnected during the transfer; wait for ASIST to display an "error" message, then click on "OK". Select "Backup", then return to step 6.
11. When transfer is complete (see Figure 9):
A. Select (click on) "Okay", then "MAIN MENU".
B. Turn "OFF" CONSULT-II.
C. 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.
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.
A. 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 Figure 10).
VERY 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 Figure 10 are connected properly.
CAUTION
^ Nissan requires the use of essential tools shown in Figure 10 when performing ECM reprogramming.
^ J44200-10 "Pigtail" should not be removed from the CONSULT-II DDL Port. This "Pigtail" allows use of the stronger "quick disconnect" cable set.
^ If cables are very often changed at the DDL Port (base) of the CONSULT-II unit, cable connector pin damage may result.
^ If there is connector pin damage, ECM reprogramming may fail. Permanent ECU damage can occur.
15. Turn "ON" the ignition switch (do not start the engine).
^ CONSULT-II will turn "ON" automatically (see Figure 11).
^ Confirm that all electrical loads* (except for the ignition) are "OFF".
^ * Headlights, defroster, A/C, Audio (radio), and cellular telephone, etc.
16. Roll down the driver's window part way, exit the vehicle, close the door, and hang the CONSULT II unit on the outside of the window (see Figure 12).
^ This step is necessary to ensure the CONSULT-II and DLC-II cable will not be disturbed during reprogramming.
CAUTION:
DO NOT connect the CONSULT-II AC power supply for Steps 17, 18 and 19.
Section 2: Confirm the vehicle's battery voltage and CONSULT-II "Charger Input"
17. Press [SUB MODE] (see Figure 11) then:
A. Press [DOWN] 4 times.
B. Select [BATTERY CHARGE].
18. Check the CONSULT-II's "Charger Input "reading (see Figure 13).
NOTE:
^ "Battery Voltage" is the voltage level of CONSULT-II's battery.
^ "Charger Input" is the voltage level of the vehicle's battery. (It must be above 12 volts).
19. The "Charger Input" reading MUST be above 12 volts (see Figure 13).
^ A reading above 12 volts confirms
a. The DLC-II is properly connected to the vehicle,
b. The vehicle battery voltage is sufficient for ECM reprogramming, and
C. CONSULT-II has a sufficient power supply to perform ECM reprogramming.
^ If the vehicles battery voltage ("Charger Input") is below 12 volts, one or more of the following may be the cause:
a. The battery charger you hooked up in section 1 is not charging the battery (poor connection or it is not working).
b. The DLC-II does not have a good connection to the vehicle (not straight).
c. The DLC-II cable may have a malfunction (damaged wire or pins).
d. The CONSULT-II Converter (J44200-50 / black box) is not working correctly (see Figure 10).
CAUTION:
^ Do not attempt ECU Reprogramming if the vehicle's battery voltage is below 12 volts.
^ Permanent ECU damage can occur if the vehicle battery does not maintain the minimum voltage during ECU Reprogramming.
^ If 'Charger Input' is above 12 volts, power from the vehicle battery will keep CONSULT-II's power supply at the correct level during reprogramming. (see Figure 13).
Section 3: ECM Reprogramming
20. Press [INITIATE ECU REPROGRAM] (see Figure 14), then
A. Press [ECM].
B. Review the precaution.
C. Press [NEXT]
21. Press [CHECK ECM P/N] to "confirm" (take note of) the current ECM part number (see Figure 15).
NOTE:
This is the vehicle's ECM part number BEFORE Reprogramming.
22. Press [COPY] to print the current ECM part number for future reference.
23. Press [BACK] to return to the main menu.
24. Select the ECM program to install (see Figure 16).
25. The "REPROGRAM START" window should appear (see Figure 17).
NOTE:
^ If you get an error message, refer to the ECU Reprogramming Software Operations Manual.
CAUTION DURING REPROGRAMMING:
^ Do not unplug CONSULT-II from the vehicle during reprogramming. Permanent ECM damage can occur.
^ Do not open any door or the trunk during reprogramming.
^ On some vehicles, the cooling fans may come on during reprogramming. This is a normal condition. Do not disconnect the cooling fans. Forgetting to reconnect them may cause severe engine damage. A vehicle battery charger is needed* to maintain the battery voltage level during reprogramming.
^ * You should have hooked up a battery charger in Section 1.
26. Press [START].
^ After a few seconds, the window shown in Figure 18 will appear.
^ CONSULT-II will now turn "OFF" its screen backlight.
^ When the screen backlight goes "OFF", ECM reprogramming has started.
NOTE:
This process will take from 10 to 20 minutes.
CAUTION:
You must leave the vehicle and the CONSULT-II unit "undisturbed" (don't touch) until reprogramming is complete.
NOTE:
If CONSULT-II screen gives you an error message "Unmatch of Vehicle Data":
^ You tried to reprogram with an incorrect data file, or
^ You are trying to reprogram with a file that is already in the ECM.
27. When the Reprogramming is complete, CONSULT-II will "beep", turn the screen backlight back ON and automatically print out a report (see Figure 19).
^ Remember it may take up to 20 minutes.
^ Attach the print-out to the repair order for future reference.
CAUTION
If CONSULT-II prints "REPROGRAMMING UNEXPECTEDLY TERMINATED":
^ The ECM has been permanently damaged and will require replacement.
^ In this case, perform steps A through G.
Do not start the engine with the damaged ECM installed.
This chart is provided as a reference to confirm the correct final ECM P/N after reprogramming.
NOTE:
^ Part numbers for ECM programs are subject to change.
^ If a more recent part number is available for any of the ECM data (specified in the Chart above) the latest version should be used to complete this campaign repair.
^ ASIST contains the latest version of all ECM data.
28. Press [END] to return to the main menu.
29. Turn the ignition switch "OFF" and CONSULT-II "OFF".
30. Make sure the throttle is released; then operate the ignition as follows:
^ The above ignition cycle will:
^ Reset ECM self learned Data.
^ Complete the Accelerator Pedal Released Position Learning.
^ Complete the Throttle Valve Closed Position Learning.
Section 4: Perform ECM Reprogram Confirmation.
31. Remove the reprogramming CARD from CONSULT-II and insert the Diagnostic Card (red/white card).
32. Start the engine.
33. Make sure all DTCs are cleared (erased).
^ If necessary, erase any DTC's that may have stored during the reprogramming procedure.
34. Idle Air Volume Learning Procedure:
^ For 2002 Models: Perform the Idle Air Volume Leaning Procedure.
^ For 2005 and 2006 models: Idle Air Volume Leaning Procedure is not needed.
35. Check engine idle speed. (Target Idle Speed: No Load in P or N-700 +/- 50 rpm.)
36. Confirm the engine is operating normally.