Engine, A/T Controls - 1-2 Shift Hesitation/DTC P0741
TSB 09-15-408/10/09
4.6L 3V 6R80 - HESITATION DURING LIGHT
THROTTLE 1-2 UPSHIFT - HARSH COASTING
DOWNSHIFT BELOW 15 MPH (24 KM/H) - INTERMITTENT DTC P0741
FORD:
2009 F-150
ISSUE
Some 2009 F-150 vehicles equipped with a 4.6L 3V engine and 6R80 transmission may exhibit the following drivability symptoms: hesitation during light throttle 1-2 upshift, harsh downshift while coasting 15 MPH (24 Km/h). Some vehicles may have a diagnostic trouble code (DTC) P0741 torque converter performance code present or stored
ACTION
Follow the Service Procedure to correct this condition
SERVICE PROCEDURE
NOTE
MECHATRONIC REPAIR/REPLACEMENT IS NOT AUTHORIZED FOR THIS ISSUE.
1. Install Integrated Diagnostic System (IDS)/Portable Diagnostic Software (PDS) or equivalent and start a session, identify (ID) vehicle.
2. Update the powertrain control module (PCM)/ transmission control module (TCM) calibration using IDS release to the latest calibration using IDS release 61.15 and higher or 62.03 and higher. This new calibration is not included in the VCM 2009.7 DVD. Calibration files may also be obtained at the website.
The TCM cannot be independently reprogrammed, reprogram using the programmable module installation (PMI) function to ensure that engine and transmission calibrations are updated to the latest level simultaneously.
In the event of an invalid part number screen during PMI it maybe helpful to:
^ Disconnect the TCM connector
^ Start a new IDS session
^ Perform PMI on the PCM
^ Once IDS instructs to install the new module in the vehicle, plug the TCM in and follow the prompts.
a. Verify that the TCM calibration shows 9L3P-7J104-BH part number after reprogramming is complete.
b. Select the following from the IDS tool:
(1) Toolbox.
(2) Powertrain.
(3) OBD Test Modes.
(4) Mode 9 Vehicle Information.
(5) TCM Cal Part Number.
NOTE
IT IS CRITICAL THAT TCM KAM BE CLEARED FOR THIS PROCEDURE TO BE FULLY EFFECTIVE
3. Clear TCM keep alive memory (KAM) and adaptive tables.
a. Using IDS:
(1) Open Toolbox.
(2) Choose Powertrain.
(3) Choose Reset KAM.
(4) Choose TCM.
b. Using PDS:
(1) Choose all Tests and Calibrations.
(2) Scroll down the menu and choose reset TCM KAM.
NOTE
FOR PDS, RESET 1CM KAM IS NOT THE SAME AS CLEAR TRANSMISSION ADAPTIVE TABLES, WHICH IS UNDER THE POWERTRAIN - TRANSMISSION MENU TREE.
NOTE
UNHOOKING THE BATTERY WILL NOT CLEAR THE TCM KAM. IT IS CRITICAL THAT TCM KAM BE CLEARED PRIOR TO RELEARNING THE ADAPTIVE TABLES FOR THE TRANSMISSION.
NOTE
DO NOT CLEAR THE PCM KAM
4. Verify that the transmission fluid temperature (TFT) PID is above 175 °F (80 °C). If it is not at 175 °F (80 °C), drive unit approximately 3 miles (5 Km) to reach temperature.
NOTE
TFT MUST BE AT 175 °F (80 °C) OR ABOVE BEFORE PROCEEDING TO STEP 5.
5. Perform adaptive shift strategy learn on level sur[ace road. Drive unit to perform adaptive shift strategy learn.
a. Accelerate from a stopped position with light throttle to 15 MPH (24Km/h) and remove foot from accelerator pedal.
b. Brake very gently to a complete stop (allow at least six (6) seconds).
c. Repeat steps (a-b) five (5) times in the dealership parking lot or similar setting.
d. Accelerate from a stopped position with light throttle ensuring that the 1-2, 2-3 and 3-4 shifts occur at engine speeds between 1700-2000 RPM.
e. Continue to accelerate until you achieve 50 MPH (80Km/h) or the 5-6 upshift.
f. Brake gently to a complete stop and hold foot on brake for ten seconds.
g. Repeat steps (d-f) three (3) times.
NOTE
SEVERAL DAYS OF DRIVING ARE REQUIRED FOR THE TRANSMISSION TO FULLY ADAPT.
WARRANTY STATUS: Eligible Under Provisions Of New Vehicle Limited Warranty Coverage
IMPORTANT: Warranty coverage limits/policies are not altered by a TSB. Warranty coverage limits are determined by the identified causal part.
OPERATION DESCRIPTION TIME
091504A 2009 F-150 6R80 1.0 Hr.
Transmission: Check
DTCs, Reprogram The
PCM And TCM, Includes
Time To Clear The TCM
KAM And Perform Road
Tests (Do Not Use With
12650D, 12651D,
12651D4)
DEALER CODING
CONDITION
BASIC PART NO. CODE
RECAL 04
Disclaimer