ECM Reprogramming For Throttle Hesitation And Engine Stalls When Cold (TSB-09-13-001)

WARNING: This page is about the Lancer DE, Automatic CVT, which is a different variant/trim than selected.

Publication date: 2009-02-01
Reference number: TSB-09-13-001

ECM REPROGRAMMING FOR THROTTLE HESITATION AND ENGINE STALLS WHEN COLD

TECHNICAL SERVICE BULLETIN

Reference Number(s): TSB-09-13-001, Date of Issue: February 01, 2009

MITSUBISHI:	2008 Lancer
GROUP:	: 13 - FUEL

PURPOSE

Customers of some California specification 2008MY Lancers with CVT, may complain of a throttle hesitation or engine stalling just after a cold engine start. A parameter in the ECM for cold air-fuel ratio was set leaner when cold in order to meet strict emission regulation requirements. This setting could present itself as a throttle hesitation due to a lack of fuel injection volume when first accelerating.

This Technical Service Bulletin advises the steps to reprogram the ECM with new parameters to repair the condition.

AFFECTED VEHICLES

2008 Lancer w/CVT (CA Spec. vehicles only)

REQUIRED OPERATIONS

The following equipment is needed to reprogram the ECM.

VCI (Vehicle Communication Interface) - MB991824.
Laptop computer with A/C power adaptor - 520924, or 547708.
MUT-III main harness 'A' (blue connector at the DLC end) - MB991910.
USB 2.0 cable - MB991827.
"Engine Compartment/Control Module" labels - p/n MSSF024G00.
MEDIC-II Download at MXXX or higher.

If an affected vehicle has a Malfunction Indicator Lamp (MIL) illuminated and DTCs are listed in the ECM memory (before reprogramming), follow diagnostic instructions for the applicable DTCs per the service manual information. Do not reprogram the ECM until the reason for DTCs being set is corrected.

REPAIR PROCEDURE

Check the underside of the hood to verify that there is no label previously installed to indicate that this reprogramming has already been done. If a label is present and the "ROM ID #" on the label matches the "New S/W Part No." in the table at the end of this bulletin, the ECM is to the latest level and reprogramming is not necessary.
For MEDIC II users only: (MUT-III users go to step 5)
Verify that the MEDIC-II is at version 5.0 and at download MXXX or higher.
If your MEDIC-II Download is below MXXX , update your MEDIC-II as follows.

Fig 1: Screen Display - Version And Download Numbers
On the MEDIC-II main screen, click on "Maintenance".

Fig 2: Screen Display - Maintenance
Click on "Download". After the download completes, click on "Cancel" to exit the "Maintenance" window.
GO TO THE REPROGRAMMING PROCEDURE ON PAGE 4.

Fig 3: Screen Display - Download
Scan Tool Viewer (STV) ONLY (MEDIC-II USERS go to the Programming Procedure on page 4). 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 N09011 or greater .
4. If the database version is N09011 or greater, reprogram the ECM as described in the Programming Procedure beginning on page 4.
5. If the database version is less than N09011 , check to see that your MUT-III version is at 20.0 or higher. If it is not at version 20.0 or higher, locate your MUT-III Scan Tool Viewer version 20.0 CD, and follow the instructions to update the laptop.
  
  Fig 4: Screen Display - Version

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.

Fig 5: Connecting MUT-III Main Harness With Blue DLC Connection To VCI

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.

ECM Reprogramming

Conduct the following steps to reprogram the ECM.
1. 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.
2. If using MEDIC-II, from the main page, click the MUT-III STV icon at the top center of the screen.
3. Select "Special Function."
  
  Fig 6: Screen Display - Special Function
4. Select "ECU reprogramming."
  
  Fig 7: Screen Display - ECU Reprogramming
5. Select "Automatic Reprogramming (CAN)."
  
  Fig 8: Screen Display - Automatic Reprogramming (CAN)
6. Click on the car icon at the bottom of the page.
  
  Fig 9: Screen Display - Car Icon
7. If the VIN listed does not match the vehicle you are working on, click on the eraser icon at the bottom of the page.
  Select VIN by clicking on the button.
  
  Fig 10: Screen Display - VIN
8. 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.
  
  Fig 11: Screen Display - VIN
9. A window may pop up asking you to select either the transmission type or vehicle class. Click the check mark to clear the window.
10. 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.
  NOTE: 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 and click the check mark at the bottom of the page
  
  Fig 12: Screen Display - CLASS
  
  Fig 13: Screen Display - Vehicle Information Code
  
  Fig 14: Identifying Model Code Plate Location
11. MFI should already be highlighted. If not, click on it to highlight it.
  Click on the check mark at the bottom of the page.
  
  Fig 15: Screen Display - MFI
12. A message will advise you that the system will "Automatic search the data."
  Click on the check mark to continue.
  
  Fig 16: Screen Display - Automatic Search Data
  
  NOTE: If a "Complete Reprogramming" message does not appear, continue with step l.
  
  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.
  
  Fig 17: Screen Display - Complete Reprogramming
13. The CAN database screen will display.
  Confirm the database number at the top right of the table is N09011 or higher.
  
  If more than one row is displayed in the table, select the appropriate ECM part number.
  
  Click on the check mark to continue.
  
  Fig 18: Screen Display - CAN Database
14. Click on the check mark to begin reprogramming.
  NOTE: It will take up to 5 minutes to complete the reprogramming.
  
  Fig 19: Screen Display - 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.
15. This message will display when the ECM reprogramming is successfully completed. Record the S/W (Software) Part No. and compare it to the "New S/W Part No." in the table at the end of this TSB.
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 the "Home" icon at the bottom left side of the screen.

Fig 20: Screen Display - ECU Reprogramming
Using the MUT-III, check and erase ALL DTCs from all systems as follows.
1. Select "Special Function."
  
  Fig 21: Screen Display - Special Function
2. Select "All DTCS," then select ERASE AND READ ALL DTCS.
  This step erases DTCs in all ECMs and then rechecks to confirm that they do not return.
  
  Fig 22: Screen Display - All DTCS
3. Inspect the list on the left side of the screen and ensure that the selections checked match the options on the vehicle. DTCs may be set if the options are incorrectly entered.
  NOTE: At this time, the check mark at the bottom of the page is not highlighted (active).
  
  Fig 23: Screen Display - Check Mark
4. Scroll to and click on FAST/IMMOB/KEYLESS and check the correct option code (VF#) from the Loading Options Setup list. Compare the selections with the vehicle's equipment to select the correct options. This will activate the check mark at the bottom of the page.
  Click the check mark for DTC erasing and reading to begin.
  
  Fig 24: Screen Display - FAST/IMMOB/KEYLESS
A window will pop up advising that DTC erasing is completed. click the check mark to clear the window. If DTCs remain, diagnose and repair the condition as per the Service Manual. If no additional DTCs are listed, click the check mark to clear the window and then click the Home icon in the lower left of the screen to return to the main menu.
Using a ball-point pen, enter the appropriate Engine Control Module (ECM) part number, vendor number, Software Part Number, this technical service bulletin number (TSB-09-13-XXX), your dealer code, and the current date on the Engine Compartment / Control Module Label (p/n MSSF024G00). The label is available from your facing PDC.

Fig 25: Identifying Engine Control Module (ECM) Part Number

The Control Module Label is NOT used for this reflash. It should be discarded.
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.
Disconnect the MUT-III and the battery charger.

PARTS INFORMATION

Use only the Genuine Mitsubishi Parts listed below.

PARTS INFORMATION

Description	Model	Part Number
Label, Engine Compartment	All	MSSF024G00

WARRANTY INFORMATION

This bulletin is supplied as technical information only and is not an authorization to repair. Repairs should be performed on a complaint basis only. If an affected vehicle is observed with the described condition, diagnose the condition, repair as described in this bulletin and submit a normal warranty claim using the following information.

ECM Reflash for Hesitation or stalling with cold engine

Nature Code: 05P Cause Code: 605

Labor Operation No.: 13851090 Time Allowance: 0.3 hr.

Warranty Coverage: Emissions Coverage - Refer to the Super screen for individual vehicle warranty coverage terms.

Special Warranty Information: Normal warranty procedures apply.

ECM REPROGRAMMING CHART

MODEL	CURRENT PART NO.	DATA NO.	DISPLAY ON MUT-II AFTER REPROGRAMMING		VENDOR NO.
MODEL	CURRENT PART NO.	DATA NO.	New Part No.	New S/W Part #	VENDOR NO.
08 Lancer Calif 4B11 D4 CVT	1860A753	1862A976	1860A753	1860A75305	E6T49586HV1