Service Procedure
SERVICE PROCEDUREIMPORTANT: Before starting, make sure:
^ ASIST on the C-III computer has been freshly synchronized (updated).
^ All C-III software updates (if any) have been installed.
NOTE:
The C-III computer automatically gets applicable ECM reprogramming data during ASIST synchronization.
^ C-III PCMCIA Card Adapter is installed.
NOTE:
Make sure this is the only PCMCIA card installed.
^ C-III Security Card is installed.
^ A screen print for Warranty documentation can be done from C-III during this process while still cable-connected to the vehicle.
1. Use the USB cable to connect the Vehicle Interface (VI) to the C-III computer and then connect the VI to the vehicle.
CAUTION
2. Connect the AC Adapter to the C-III computer.
CAUTION
3. Connect a battery charger to the vehicle battery:
^ Set the battery charger at a low charge rate (trickle charge).
^ It is recommended that you use the GR-8 - Battery and Electrical Diagnostic Station in "Power Supply Mode".
NOTE:
When the GR-8 is in power supply mode, "CHARGING" will flash at the top of the screen, and "POWER SUPPLY MODE" is displayed at the bottom of the screen (see Figure B).
CAUTION
4. Turn the ignition ON with engine OFF.
^ The engine must be OFF (not running) during the reprogramming procedure.
^ Turn OFF all vehicle electrical loads such as exterior lights, interior lights, HVAC, blower, rear defogger, audio, NAVI, seat heater, etc.
CAUTION
5. Make sure the engine cooling fan(s) are not running.
If the cooling fans are running:
a. Turn the ignition OFF.
b. Wait for the engine to cool.
c. Turn the ignition ON (with engine OFF).
d. Make sure the engine cooling fans are not running.
6. Open / start ASIST on the C-III computer.
7. Select CONSULT Utilities, then CONSULT-III, and wait for the "Detecting VI/MI in progress" message to clear.
8. Select the detected VI from the list. (See Figure 1.)
9. Select Connect
10. Wait for the "Checking the firmware version" message to clear.
11. Select ECM reprogramming / Programming (see Figure 2).
12. Select "Select"
13. Select "Confirm"
14. Wait for System Call and ECM Diagnosis to complete.
15. If there are no DTCs, select the "Repair" icon (see Figure 4).
^ If there are any DTCs; diagnose, perform repairs, and erase DTCs.
^ Refer to the Service Manual as needed.
^ Diagnosis and repair for DTCs is not covered by this campaign.
16. Select the "ECM Reprogram" icon.
17. When you get to the ECM Reprogramming screen shown in Figure 6, do the following:
A. On your C-III screen, look at the Part Number column (see Figure 6 example):
^ If this column is blank (no part number listed), this campaign does not apply or it has already been completed. Close C-III and disconnect from the vehicle, then recheck Service Comm for campaign eligibility.
^ If a Part Number is listed, write it on the Repair Order.
B. Compare the Part Number you wrote down to the number in the Current Part Numbers in Table A.
^ If there is a match, this campaign applies. Continue with the reprogramming procedure.
^ If there is not a match, this campaign does not apply or it has already been completed. Close C-III and disconnect from the vehicle.
18. Select Next (see Figure 6 on the previously shown).
NOTE:
If the screen in Figure 7 appears, there is data stored in the VI. Select "Yes" to proceed with Reprogramming.
19. The screen in Figure 8 displays during data transfer.
CAUTION: During data transfer:
^ DO NOT disturb the VI, DDL, or USB connections.
^ DO NOT push the "START-STOP" button.
^ The engine fans may turn on; this is normal.
NOTE:
If "Transfer To VI" reaches 100%, and "Transfer To ECU" does not start,
a. DO NOT replace the ECM. The ECM is not damaged.
b. Check / make sure the battery voltage is above 12V and all vehicle electrical loads are turned OFF (see steps 3 and 4).
c. Select Cancel Data Transmission, then click on the "Home" icon (upper left corner of C-III screen) and re-start from the beginning (step 1).
20. When the screen in Figure 9 appears, ECM reprogramming is complete.
Print this screen and attach it to the Repair Order for Warranty documentation.
NOTE:
If the screen in Figure 9 does not display (reprogramming does not complete) refer to NTB10-027 - ECM Reprogram Interruption Recovery.
NOTE:
If you can't print the above screen:
a. Select the Print icon.
b. Select Save.
c. Select OK.
A copy of the screen is now saved in the C-III computer.
NOTE:
If you saved a copy of the screen in Figure 9 and need to print it at a later date, you can find it in the following file location:
At the bottom left corner of the computer screen click on Start.
In the Administrator window select My Computer.
In the My Computer screen select Local Disc (C).
In the Local Disc (C) screen select Consult III folder.
In the Consult III screen/folder select ApplicationData folder.
In the ApplicationData screen/folder select PrintImages folder.
When the file was saved it was automatically given a file name using the current date and time. Select and print the file/screen image that you want.
Erase DTCs from all systems
NOTE:
During reprogramming, DTCs will set in several systems and must be erased.
21. Click on the "Home" icon (top left corner of the C-III screen).
22. Wait for the "Detecting VI/MI in progress" message to clear.
23. Select the detected VI from the list. (See Figure 11.)
24. Select Connect
25. Wait for the "Checking the firmware version" message to clear.
26. Select the correct vehicle and model year from the list (see Figure 12 example).
27. Select Select.
28. Make sure the correct vehicle is displayed (see Figure 13 example).
29. Select Confirm.
30. Wait for System Call to complete and CAN Diagnosis to reach 51%.
When the CAN diagnosis reaches 51%, the process icons in the Process Guide Area at the top of the screen will light (become enabled).
31. When the icons light, click on the "Final Check" icon.
32. CAN diagnosis will run again. When it reaches 51% and the icons light, click on the "Duplication Test" icon.
33. When the screen in Figure 16 appears, click on All Erase.
34. Click on Yes (see Figure 16).
35. Use the scroll bar to scroll down the page and make sure all DTCs are erased.
^ For any DTCs that do not erase: diagnose, perform repairs, and erase DTCs.
^ Refer to the Service Manual as needed.
^ Diagnosis and repairs beyond the ECM reprogramming are not covered by this campaign.
^ Reprogramming is finished. Continue with the Service Procedure below.
36. Close C-III, then turn the ignition "OFF".
37. Make sure the throttle is released and your foot is not pressing the brake or clutch pedal; then operate the ignition as shown above.
^ The above key cycle will reset ECM "self learned" data.
NOTE:
If the ECM is replaced for any reason, be sure to input the VIN as part of the process.