Instruments - Speedo. Doesn't Return To Zero At A Stop
TSB 10-4-203/15/10
SPEEDOMETER - NOT RETURNING TO ZERO WHILE
IN PARK AND ENGINE RUNNING
FORD:
2007-2008 Expedition
ISSUE
Some 2007-2008 Expedition vehicles may exhibit symptoms of speedometer fluctuation while the engine is running and transmission is in park position.
ACTION
Follow the Service Procedure steps to correct the condition.
SERVICE PROCEDURE
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 65.06 and higher. This new calibration is not included in the VCM 2010.1 DVD. Calibration files may also be obtained at the website.
NOTE
THE TCM CANNOT BE INDEPENDENTLY REPROGRAMMED, REPROGRAM USING THE PMI FUNCTION TO ENSURE THAT ENGINE AND TRANSMISSION CALIBRATIONS ARE UPDATED TO THE LATEST LEVEL SIMULTANEOUSLY.
3. Verify that the 1CM Calibration shows 8L1P-7J104-AD (8L1P-7J104-BD for later production 2008 model year) part number after reprogramming is complete.
a. Select the following from the IDS tool:
(1) Toolbox.
(2) Powertrain.
(3) 0DB Test Modes.
(4) Mode Level 9 Vehicle Information.
(5) TCM Cal Part Number.
NOTE
IT IS CRITICAL THAT TCM KEEP ALIVE MEMORY (KAM) BE CLEARED FOR PROCEDURE TO BE FULLY EFFECTIVE
4. Clear TCM 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
DISCONNECTING 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.
5. Verify 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.
NOTE
PERFORM ADAPTIVE SHIFT STRATEGY LEARN ON LEVEL SURFACE ROAD.
6. Drive unit to perform adaptive shift strategy learn.
a. Accelerate from a stopped position with light throttle to 15 MPH (24 Km/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 rest 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 (80 Km/h) or the 5-6 upshift.
f. Brake gently to a complete stop and hold foot on brake for ten (10) 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
100402A 2007-2008 Expedition: 1.0 Hr.
Reprogram The PCM And
TCM Includes Time To
Clear TCM KAM And
Perform Road Tests (Do
Not Use With Any Other
Labor Operations)
DEALER CODING
CONDITION
BASIC PART NO. CODE
RECAL 42
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