SUBJECT: TC-SST TRANSMISSION GEAR NOISE AFTER COLD ENGINE START | No: TSB-14-22-001
DATE: July, 2014
MODEL: 2008 Lancer Evolution
CIRCULATE TO: | [ ] GENERAL MANAGER | [ X ] PARTS MANAGER | [ X ] TECHNICIAN
[ X ] SERVICE ADVISOR | [ X ] SERVICE MANAGER | [ X ] WARRANTY PROCESSOR | [ ] SALES MANAGER

## PURPOSE

On affected vehicles equipped with W6DGA TC-SST transmissions, the TCM quickly engages and disengages 5th gear to determine whether the vehicle is moving. Noises can be heard as the shift fork attempts to move from neutral to 5th gear, and back to neutral immediately following engine start after an extended time being parked (e.g. overnight parking).

This TSB instructs technicians to reprogram the TCM with new software to prevent gear noise by eliminating the 5th gear vehicles speed check.

This TCM software update fixes a program fault unrelated to any emission or diagnostic performance.

## AFFECTED VEHICLES

2008 Lancer Evolution equipped with W6DGA TC-SST transmission

## REQUIRED OPERATIONS

### OVERVIEW

1. Confirm your MUT-III is updated with the latest reprogramming database.
2. Diagnose (and repair if necessary) the failure condition using the service manual.
3. Reprogram the TCM with the new softwar.

IMPORTANT: If an affected vehicle has a Malfunction Indicator Lamp (MIL) illuminated before reprogramming, and DTCs are listed in TCM memory, diagnose and repair those DTCs per the service manual before reprogramming. DO NOT reprogram the TCM until the reason(s) for other DTCs being set is corrected.

### EQUIPMENT

The following equipment is needed to reprogram the TCM.

- VCI (Vehicle Communication Interface) - MB991824 or
  VCI LITE - MB992744
- Laptop computer with A/C power adaptor - 520924, or MIT547708.
- MUT-III main harness 'A' (blue connector at the DLC end) - MB991910.
- USB 2.0 cable - MB991827.
- “Engine Compartment/Control Module” label - p/n MSSF024G00.
- MEDIC-3 update at M267 or higher.
- For Standalone MUT-III units, MUT-III Reprogramming Database N14051 or higher.

## REPROGRAMMING CHART

### Database No. 14051

MODEL | CURRENT PART NO. | NEW PART NO. | DISPLAY ON MUT-III AFTER REPROGRAMMING
Old S/W Part # | New S/W Part #
08 Lancer Evolution equipped with W6DGA TC-SST | 8631A749 | 8631B413 ↓ | 8631A3790A 8631A3790B 8631A3790C | 8631A3790E

## REPAIR PROCEDURE

NOTE: Reprogramming the TCM using the latest database (i.e. N14051) includes all past and current reprogramming for TSBs of affected vehicles. It is not necessary to reprogram the TCM for each previous TSB.

1. Check the underside of the hood to verify there is no “Authorized Modification” label (see page 11 for example) previously installed to indicate this reprogramming has already been completed. If a label is present and the “ROM ID #” on the label matches the “New S/W Part No.” in the table above, the TCM is at the latest level and reprogramming is not necessary. Conduct normal diagnosis for the described condition.

| ### For MEDIC 3 users only: (MUT-III users go to step 5) Verify the MEDIC 3 is at version 3.1 and at update 267 or higher. If your MEDIC 3 update is at least 267, continue with the Reprogramming Procedure on page 4. If your MEDIC 3 update is below 267, update your MEDIC 3 as follows.
| Select the MEDIC 3 Admin tab and click on “Updates.”
| IF the MEDIC update screen advises updates are available, click the “Begin” button. After all updates are complete, GO TO THE REPROGRAMMING PROCEDURE ON PAGE 4.
| STANDALONE MUT-III SCAN TOOL VIEWER (STV) ONLY: (MEDIC 3 USERS GO TO THE REPROGRAMMING PROCEDURE ON PAGE 4). Verify that your MUT-III has the most current version of the reprogramming database: From the MUT-III Main Page: ‧ Select “Special Function” ‧ Select “ECU Reprogramming” ‧ Select :Database File Display-CAN” ‧ Confirm the database number displayed at the top right of the chart is N14051 or higher If the database number displayed on your MUT-III is N14051 or greater, continue to the Reprogramming Procedure on page 4. If the reprogramming database number displayed on your MUT-III is lower than N14051, locate the reprogramming CD containing database N14051 and follow the instructions provided with the CD to update your MUT-III.

## REPROGRAMMING PROCEDURE

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

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 (or VCI-LITE).
- When the laptop displays the MUT-III main screen, connect the USB cable to the laptop.
- Connect the MUT-III main harness (blue DLC connector) 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 the indicator lamp in the upper right corner of the screen is green.

### ECU Reprogramming

| DO NOT DISTURB THE HARNESS CABLES OR CONNECTIONS DURING THE REPROGRAMMING PROCESS AS IT 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.

| Conduct the following steps to reprogram the TCM. a. Turn the ignition switch to the ON position. If the vehicle is equipped with the F.A.S.T. System, the transmitter must remain in the vehicle for the entire procedure. For vehicles equipped with OSS, press the START/STOP button twice without applying the brake. The LED in the button should be green. b. If using MEDIC, from the main page, click the MUT-III STV icon at the top center of the screen to open MUT-III. c. From the MUT-III Main Menu, select “Special Function.”
| d. Select “Automatic Reprogramming (CAN).”
| e. Click the car icon at the bottom of the page.
| f. If the VIN or vehicle description displayed does not match the vehicle you are working on, click the eraser icon at the bottom of the page to erase vehicle data. Then click the VIN button.
| g. Click the icon in the lower RH corner of the screen to have MUT-III automatically read the VIN. If a message appears saying the VIN cannot be input automatically, manually enter the 17 digit VIN into the VIN field at the top of the page. Make sure the VIN is correct and click the check mark.
| h. Confirm all data matches the vehicle and click the check mark at the bottom of the page.
| Select ELC-AT/CVT/SST and click the check mark to continue.
| In the “Automatic search the data” dialog box, click the check mark to begin a search for reprogramming data.
| TCM TO LATEST VERSION If a “Complete Reprogramming” message does not appear, continue with step i. If the message seen at left is displayed, the TCM software as already at the most current level. Do not continue with the reprogramming procedure. This TSB does not apply. Click the check mark to clear the window, then click the Home icon at the lower left corner of the screen to return to the System Select main page. Turn the ignition switch to the OFF position and disconnect the MUT-III. Turn off and disconnect the battery charger. Conduct normal diagnosis per the service manual.
| i. The Automatic Reprogramming (CAN) database screen will display. Confirm the database number at the top right of the table is N14051 or higher. If more than one row is displayed in the table, refer to the reprogramming chart on Page 2 to select the correct row. Click on the row to highlight it. Click the check mark to continue.
| j. A message will ask you to “Check reprogramming data.” k. Click the check mark to begin reprogramming. Reprogramming will take up to 5 minutes to complete.
| l. This message will display when TCM reprogramming is successfully completed. Confirm the “New S/W P/N” displayed matches the table at the beginning of this TSB. Then click the check mark to clear the message. Click the UP arrow at the lower left corner of the page to return to the System Function page.
| Using MUT-III, check and erase ALL DTCs from all systems as follows. a. Select “Special Function.” b. Select “All DTCs,” then select “ERASE AND READ ALL DTCS.”
| c. The “System List” on the left side of the screen will have all selections checked. Do not change these selections. DTCs may be set if the vehicle is equipped with options that are unchecked. d. If the check mark at the bottom of the screen is highlighted, click it and move ahead to step 6. If not, continue with sub-step e.
| e. In the left column, scroll to and click FAST/IMMOB/KEYLESS/TPMS. In the right column, check the correct option code (VF#) from the Loading Options Setup list. This will activate the check mark at the bottom of the page. ‧ Vehicles with regular keyless entry (buttons on a multi-function key), select VF2. ‧ Vehicles with F.A.S.T. Key, select VF3. Click the check mark to continue.
| A window will pop up asking you to confirm DTC erasing. Click the check mark for DTC erasing and reading to begin. When DTC erasing is completed, a window will display. a. If DTCs return after reprogramming, click the check mark to clear the window. Diagnose and repair per the Service Manual. b. If DTCs do not return, click the check mark to clear the window, then click the home icon at the lower left of the screen to return to the main menu. Turn off the ignition switch and disconnect the MUT-III. Turn off and disconnect the battery charger.

1. Using a ball-point pen, enter the appropriate Transmission Control Module (TCM) part number, Software Part Number (ROM ID#), this Technical Service Bulletin number (TSB-14-22-001), your dealer code, and the current date on the Engine Compartment / Control Module Label (p/n MSSF024G00). The Vendor Code is not applicable. The label is available from your facing PDC.

1. Carefully remove all dirt and oil from a vacant area near the VECI label on the underside of the hood and affix the Engine Compartment Label (LH side, above) to that area.
2. Test drive the vehicle to confirm proper operation and the MIL does not illuminate. Diagnose and correct any DTCs that return.

## 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.

TCM Reprogramming for gear noise at cold start up.
Nature Code: 05P | Cause Code: 490
Labor Operation No.: 228502 13 | Time Allowance: 0.3 hr.
Warranty Coverage: Powertrain Coverage - Refer to the Superscreen for individual vehicle warranty coverage terms.
Special Warranty Information: Normal warranty procedures apply.

Copyright 2014 Mitsubishi Motors North America, Inc.

The information contained in this bulletin is subject to change. For the latest version of this document, go to the Mitsubishi Dealer Link, MEDIC, or the Mitsubishi Service Information website (www.mitsubishitechinfo.com).