Engine Controls - MIL ON/DTC P2100/Other Possible DTC's
No. TSB-07-13-008DATE: September, 2007
MODEL: 2008 Lancer
MIL ILLUMINATION - DTC P2100 THROTTLE
ACTUATOR CONTROL MOTOR CIRCUIT - OPEN
PURPOSE
in rare cases, some affected vehicles may have a MIL illumination and DTC P2100 Throttle Actuator Motor Circuit - Open stored due to a motor coil short-circuit in the throttle body. There may also be other DTCs (P0123, P0222, P0638, P1241, P2101) stored in memory in addition to P2100. Certain
parameters in the Powertrain Control Module (PCM) can create a condition where current flowing to the motor coil in the throttle body will result in a Throttle Actuator Control (TAC) motor coil short-circuit. This damages the circuits in the throttle body, leading to an open circuit within the assembly.
This condition is limited to vehicles equipped with F1CJA CVT transaxle. This reprogramming procedure will change the parameters in the PCM to prevent this condition. As DTC P2100 may have been set by a shorted throttle body assembly, you will also replace the throttle body after reprogramming.
AFFECTED VEHICLES
2008 Lancer w/CVT only built prior to the following VINs:
REQUIRED OPERATIONS
OVERVIEW
This procedure covers the following operations:
1. Check for ALL DTCs.
2. Read and record all DTCs stored in PCM memory. DO NOT replace the throttle body prior to conducting PCM Reprogramming.
3. Reprogramming the PCM with new software parameters.
4. Replacement of the throttle body assembly. Refer to the service manual for replacement procedures.
5. Check for ALL DTCs. If DTCs are recorded in memory, diagnose and repair per the service manual.
The following equipment is needed to reprogram the PCM.
^ VCI (Vehicle Communication Interface) - MB991824
^ MEDIC-II Laptop computer - 520924 or 528535
^ MUT-III main harness 'A' (blue connector at the DLC end) - MB991910
^ USB 2.0 cable - MB991827
^ "Engine Compartment/Control Module" labels - p/n MSSF-024G-00
^ MEDIC II Download at M167 or higher.
PRELIMINARY STEPS
1. Check the underside of the hood to verify that there is no label previously installed to indicate that this reprogramming has already been done.
For MEDIC II users only: (MUT III users go to step 5)
2. Verify that the MEDIC II is at version 4.0A and at
download M167 or higher.
If your MEDIC II Down-load is below M167, update
your MEDIC II as follows.
3. On the MEDIC-II main screen, click on
"Maintenance."
4. Click on "Download". After the download completes, click on "Cancel" to exit the "Maintenance" window.
GO TO THE REPROGRAMMING PROCEDURE.
5. Scan Tool Viewer (STV) ONLY (MEDIC-II USERS go to the Programming Procedure).
Verify that your MUT-III has the most current version of the reprogramming database:
a. Select "Special Function", then select "ECU Reprogramming."
b. Select "Database File Display." The database version is displayed in the top right corner of the screen. Make sure the database version is N07091 or greater.
c. If the database version is N07091 or greater, reprogram the PCM as described in the Programming Procedure.
d. If the database version is less than N07091, you must transfer the new reprogramming data from the Reflash Update CD 09/07 to the MUT-III hard drive as follows:
1. Install Reflash Update CD 09/07 into the PC's DVD-ROM drive.
2. Follow the instructions on the screen. The system will automatically transfer the reprogramming data onto the PC's hard drive.
3. Continue to the Reprogramming Procedure.
REPROGRAMMING PROCEDURE
CAUTION:
BATTERY VOLTAGE (AS MEASURED AT THE BATTERY POSTS WITHOUT ELECTRICAL
LOAD) MUST BE KEPT AT 12.4V OR HIGHER IN ORDER TO REPROGRAM THE PCM
MEASURE THE BATTERY VOLTAGE AND CHARGE AS NECESSARY. DURING REPROGRAMMING, 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 MUT-III laptop and the VCI must remain connected for the entire procedure.
Connect the equipment as follows:
^ 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.
^ If the procedure is to be conducted with the laptop running on battery power only, insure that the battery icon at the lower RH corner of the screen shows that the battery is at least 1/2 charged.
NOTE:
If the USB cable is disconnected during this procedure, a warning message will display. Close the message display by clicking on the OK button and check USB connections.
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.
ECM Reprogramming
If DTC P2100 was present in the PCM memory, DO NOT replace the throttle body prior to conducting PCM Reprogramming.
1. Conduct the following steps to reprogram the ECM.
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. Select "Special Function."
c. Select "ECU reprogramming."
d. Select "Automatic Reprogramming (CAN)."
e. Click on the car icon at the bottom of the page.
f. Click on the Eraser Icon at the bottom of the page.
Select VIN by clicking on the VIN button.
g. 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.
h. If it was not completed automatically, input the vehicle class. Click on the CLASS button, select the appropriate class from the menu and 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).
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.
i. MFI should already be highlighted. If not, click on it to
highlight it.
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 this screen does not appear, continue with
step k.
If the PCM is already reprogrammed for this concern, this screen will display. 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.
k. The CAN database screen will display.
Confirm the database number at the top right of the
table is N07091 or higher.
(If more than one row is displayed in the table, select the appropriate PCM part number.)
Click on the check mark to continue.
l. Click on the check mark to begin reprogramming.
NOTE:
It will take up to 5 minutes to complete the reprogramming process.
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 fan blades. The radio will be turned off 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 PCM reprogramming is successfully completed. Record the S/W (Software) Part No. and compare it to the "New Part No." from the table in attachment 1 at the end of this TSB.
Click the check mark and you will be returned to the
"ECU Reprogramming" page.
2. Turn the ignition key/knob to the OFF position.
Replace the Throttle Body
If the original diagnosis confirmed that DTC P2100 was stored in the PCM's memory, and the integrity of all circuits relating to the throttle body have been confirmed, replace the throttle body assembly. Refer to the service manual for specific information regarding replacement procedures.
IMPORTANT:
It is expected that a shorted throttle body combined with DTC P2100 will have a very low incidence rate. Only replace the throttle body after you have confirmed that DTC P2100 was stored in memory and no other condition (loose connector, damaged wiring, etc.) has been identified as the cause.
Erase and Read ALL DTCs.
1. Using the MUT III, check and erase ALL DTCs from all systems as follows.
a. Select "Special Function."
b. Select "All DTCS,"
When the screen changes, select ERASE AND READ
ALL DTCS.
c. MFI should be highlighted on the screen. 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 the options are incorrectly entered.
At this time, the check mark at the bottom of the page
is not highlighted (active).
d. Scroll to and click on FAST/IMMOB/KEYLESS and
check the correct option code (VF#) from the 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 reading and erasing to
begin.
e. Click the check mark in the "ALL DTCs" window to
continue.
2. After the ALL DTCs procedure is completed, if DTCs remain diagnose and repair the condition as per the Service Manual. If no 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.
3. Using a ball-point pen, enter the appropriate Engine Control Module (ECM) part number, vendor number, ROM ID# (new S/W Part #), this technical service bulletin number (TSB-07-13-008), your dealer code, and the current date on the Engine Compartment / Control Module Label (p/n MSSF-024G-00). The label is available from your facing PDC.
The Control Unit Label is NOT used for this reflash. It should be discarded.
4. 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.
PARTS INFORMATION
Use the Genuine Mitsubishi Parts listed below.
WARRANTY INFORMATION
If an affected vehicle is observed with the above condition, repair as described in this bulletin and submit a normal warranty claim as follows.
Diagnostic Trouble Codes (DTCs) must be input into the DTC Code field when a warning lamp illumination is indicated as being the reason for repair.
Attachment 1
ECM Reprogramming Chart