Reprogramming Procedure

BATTERY VOLTAGE (AS MEASURED AT THE BATTERY POSTS WITHOUT ELECTRICAL LOAD) MUST BE KEPT AT 12.4V OR HIGHER IN ORDER TO REPROGRAM THE ECM. MEASURE THE BATTERY VOLTAGE AND CHARGE AS NECESSARY. A BATTERY CHARGER SHOULD BE CONNECTED TO THE VEHICLE'S BATTERY DURING THE REPROGRAMMING PROCEDURE. DO NOT ALLOW THE BATTERY CHARGER TO TIME OUT.

NOTE:
VCI Stand-alone reprogramming is not available for this procedure. The laptop and the VCI must remain connected for the entire procedure.

Connect the equipment as follows:

^ Turn the laptop computer on. If you're running on battery power and the charge indicator in the lower right hand corner of the screen does not show a full charge it is recommended that either the laptop battery be charged prior to beginning or that reprogramming be completed with the A/C power adaptor connected to the laptop.

^ Connect the USB cable to the VCI.

^ When the laptop displays the MUT-III main screen connect the USB cable to the laptop.

^ Connect the MUT-III main harness with the blue DLC connection to the VCI.

^ Connect the blue connector of the MUT-III main harness to the vehicle's data link connector.

^ Turn the VCI power switch ON. Verify that the indicator lamp in the upper right corner of the screen is green.





CAUTION
DO NOT DISTURB THE HARNESS CABLES OR CONNECTIONS. INTERRUPTION DURING THE REPROGRAMMING PROCESS COULD CAUSE THE CONTROL UNIT TO LOSE DATA OR PREVENT FUTURE REPROGRAMMING. IF THE USB CABLE IS DISCONNECTED DURING THIS PROCEDURE, A WARNING MESSAGE WILL DISPLAY

AWC ECU Reprogramming Procedure

1. Conduct the following steps to reprogram the AWC ECU.





a. Turn the ignition key or knob (F.A.S.T. equipped) to the ON position. If the vehicle is equipped with the F.A.S.T. System, the fob must remain in the vehicle for the entire procedure.

b. In the MEDIC main page, click on MUT-III.

c. Select "Special Function."





d. Select "ECU reprogramming."





e. Select "Automatic Reprogramming (CAN)."





f. Click on the car icon at the bottom of the page.





g. If the VIN listed does not match the vehicle you are working on click on the eraser icon at the bottom of the page.

Click on the VIN button.





h. Click on the icon in the lower RH corner of the screen to have the MUT-III automatically read the VIN. If a message appears saying that the VIN cannot be input automatically manually type the 17 digit VIN into the VIN field.

Make sure the VIN is correct and click on the check mark.

A window may pop up asking you to select either the transmission type or vehicle class. Click the check mark to clear the window.

Click on either the TRANSMISSION or CLASS button and make the appropriate selection from the menu Then click the check mark at the bottom of the page. Vehicle class can be found on the Vehicle Information Code Plate riveted to the base of the RH B-pillar (see photo below). The class is part of the model code.








Click the check mark to enter the class. Confirm that all of the data is correctly entered, then click the check mark at the bottom of the page.

i. Select 5. ACD or AYC/ACD

Then click on the check mark at the bottom of the page.

j. A message will advise you that the system will "Automatic search the data."

Click on the check mark to continue.





NOTE:
If a "Complete Reprogramming" message is displayed, the ECM is already reprogrammed for this concern. If this message displays, do not continue with this reprogramming procedure. Click the check mark to clear the window, then click on the Home icon at the lower left corner of the screen to return to the System Select main page.

If a "Complete Reprogramming" message does not appear, continue with this procedure.





k. The CAN database screen will display.

Confirm the database number at the top right of the table is N11011 or higher.

If more than one row is displayed in the table, < select the appropriate ECM part number.

Lancer Evolution 8631A040
Lancer & Sportback Ralliart 8631A235

Click on the check mark to continue.

I. Click on the check mark to begin reprogramming. It may take up to 5 minutes to complete the reprogramming.

CAUTION
The Daytime Running Lights and both the engine and condenser fans will automatically be turned on during reprogramming. Care should be taken to insure nothing gets caught in the moving blades. The radio will be turned off, instrument warning lights will illuminate and you will also hear a chime in the interior for a short period of time. These are normal conditions.

m. This message will display when the reprogramming is successfully completed. Record the S/W (Software) Part No. and compare it to the "New Software P/N' in the table below.

n. Turn the ignition key/knob to the OFF position, wait approximately 10 seconds, then turn it back on.





Click the check mark and you will be returned to the "ECU Reprogramming" page.

Click on the "Home" icon at the bottom left of the screen.

2. Disconnect the MUT-III and the battery charger.

3. Start the engine and check for the "SERVICE REQUIRED" warning light. If the light stays on after the self-check, check for DTC's. Refer to the service manual for appropriate DTC troubleshooting procedures.