Campaign - AWC ECU Software Update: Overview
No: SC-11-002DATE: March, 2011
MODEL: See below
SUBJECT:
AWC ECU REPROGRAMMING SERVICE CAMPAIGN
This bulletin supercedes SC-09-002, issued September, 2009, to update the ECU reprogramming software. Revised information is indicated by <.
PURPOSE
This reprogramming procedure will modify the All-Wheel-Control (AWC) ECU software to accurately match the operations check of the AYC/ACD motor with current ambient conditions. Extremely cold weather causes increased excessive load on the motor which could result in damage to the motor. This bulletin describes procedures to reprogram the AWC ECU with new software parameters to prevent this condition.
NOTE:
This reprogramming may be performed on vehicles that have not had AWC warning lamp illumination.
AFFECTED VEHICLES
2008-2010 Lancer Evolution produced before 8/28/2009
2009-2010 Lancer Ralliart produced before 8/28/2009
2009-2010 Lancer Sportback Ralliart produced before 8/28/2009
This campaign applies only to affected vehicles sold in or shipped to registered or residing in Canada or the following states:
SPECIAL EQUIPMENT
The following equipment is needed to reprogram the AWC ECU:
^ VCI (Vehicle Communication Interface) - MB991824.
^ Laptop computer with A/C power adapter - 520924 or 547708.
^ MUT-III main harness 'A' (blue connector at the DLC end) - MB991910.
^ USB 2.0 cable - MB991827.
^ MEDIC 3 Update at 027 or higher or MEDIC-II Download at M409 or higher <
If an affected vehicle has a Malfunction Indicator Lamp (MIL) illuminated and DTCs are set in the ECM memory follow the DTC diagnostic instructions as described in the service manual. Do not reprogram until the reason for DTC being set is corrected.
REPAIR PROCEDURE
1. Check the underside of the hood to verify that there is no label previously installed to indicate that this campaign has already been done.
^ If a label is present and the ROM ID# on the label matches the ROM ID# below the ECU is already at the latest level. Reprogramming is not necessary. Do not continue with this bulletin.
For MEDIC 3 users only: <
1. In the MEDIC 3 home screen under Updates check the Update, and Reflash Database numbers.
2. If your MEDIC 3 is not at Update 26 or higher and Reflash Database N11011 or higher, select Updates in the Admin screen to force a download, bringing your machine to the latest version of MEDIC 3.
3. Continue with the REPROGRAMMING PROCEDURE below.
For MEDIC II users only:
1. Verify that MEDIC II is at Download M409 or higher by checking the bottom of the screen. <
If your MEDIC-II Download is below M409 update your MEDIC-II as follows: <
2. On the MEDIC-II main screen, click on "Maintenance".
3. In the window pop-up screen, click on "Download".
After the download completes, click on "Cancel" to exit the "Maintenance" window.
Continue with the REPROGRAMMING PROCEDURE below.
Scan Tool Viewer (STV) ONLY: Verify that your MUT-III has the most current version of the reprogramming database:
1. Select "Special Function", then select "ECU Reprogramming."
2. Select "Database File Display (CAN)."
3. The database version is displayed in the top right corner of the screen. Make sure the database version is N11011 or greater. <
4. If the database version is N11011 or greater, reprogram the AWC ECU as described in the REPROGRAMMING PROCEDURE below.
5. If the database version is less than N11011, check to see that your MUT-III version is at 24 or higher.
If it is not at version 24 or higher locate your MUT-III Scan Tool Viewer version 24 CD and follow the instructions to update the laptop.
WARRANTY INFORMATION