Drivetrain Controls - MIL ON/DTC C161E Set
No: TSB 11-22-002DATE: March, 2011
MODEL: See Below
SUBJECT:
AWC ECU REPROGRAMMING FOR DTC C161E - ELECTRIC PUMP SYSTEM
PURPOSE
Some customers may report the "SERVICE REQUIRED" or"I" light illuminated in the MID (Multi Information Display) during extremely cold weather (approx. 30° C, 22° F). Under these conditions, the AWC ECU may incorrectly detect a defective hydraulic pump due to an inaccurate estimate of the pump motor operating temperature. This TSB describes a procedure to reprogram the All-Wheel- Control (AWC) ECU with new software to prevent this condition.
NOTE:
This condition may occur only under extremely cold weather in the northern U.S. and Canada, even if there is no physical damage to the AWC pump motor.
AFFECTED VEHICLES
2008-2011 Lancer Evolution produced before 10/31/2010
2009-2011 Lancer Railiart produced before 10/31/2010
2009-2011 Lancer Sportback Ralliart produced before 10/31/2010
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 (if using MEDIC-II, download must be at M409 or higher).
If an affected vehicle has a Malfunction Indicator Lamp (MIL) illuminated and other 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. Determine if DTC161E was set during extremely cold weather (approx. -30° C, -22° F), before conducting AWC ECU reprogramming. If not, conduct normal DTC161E diagnosis.
2. Determine if the AWC ECU has already been reprogrammed.
a. From the MUT-III Main Menu, click on System Select.
b. Scroll to and select "5. ACD" (conventional manual transmission) or "6. ACD/AYC" (SST) in the System List column.
c. Select Special Function.
d. Select ECU Information.
e. If the New Software P/N (ROM ID #) displayed is the same as listed in the chart DO NOT CONTINUE WITH REPROGRAMMING. This TSB does not apply. Conduct normal C161E diagnosis.
For MEDIC 3 users only:
1. If you are using MEDIC 3 the correct database was installed with the MEDIC 3 software.
Continue with the REPROGRAMMING PROCEDURE.
For MEDIC II users only:
1. Verify that MEDIC II is at Download M409 or higher by checking the bottom of the screen.
If you 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 pop-up window click on "Download".
4. After the download completes, click on "Cancel" to clear the "Maintenance" window.
Continue with the REPROGRAMMING PROCEDURE.
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.
^ If the database version is N11011 or greater, reprogram the AWC ECU as described in the REPROGRAMMING PROCEDURE below.
^ If the database version is less than N11011, check to see that your MUT-III version is at 24.0 or higher. If it is not at version 24.0 or higher, locate your MUT-III Scan Tool Viewer version 24.0 CD, and follow the instructions to update the laptop.
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.
AWC ECU Reproramming 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 the CLASS button and make the appropriate selection from the menu.
Vehicle class can be found on the Vehicle Information Code Plate riveted to the base of the RH B-pillar (see photo). The class is part of the model code.
Then click the check mark at the bottom of the page.
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 6. AYC/ACD (as appropriate for the vehicle).
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 AWC-ECU is already reprogrammed for this concern. If this message displays, do not continue with this reprogramming procedure. This TSB does not apply.
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.
l. 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.
n. Turn the ignition key/knob to the OFF position, wait approximately 8 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 DTCs. Refer to the service manual for appropriate DTC troubleshooting procedures.
WARRANTY INFORMATION
This bulletin is supplied as technical information only and is not an authorization to repair. If an affected vehicle is reported with the described condition, diagnose the condition, repair as described in this bulletin and submit a normal warranty claim using the following information.
AWC ECU Reprogramming for DTC C0161
Nature Code: 605 Cause Code: 990
Labor Operation No.228511 BQ Time Allowance: 0.3 hr.
Warranty Coverage: 8 years / 80,000 miles Emissions warranty