Explorer Sport Trac 2WD V8-4.6L (2008)
PROM - Programmable Read Only Memory: All Technical Service Bulletins
Engine Controls - MIL ON/DTC P0456 Stored In ECM
TSB 09-1-2
01/26/09
MALFUNCTION INDICATOR LAMP (MIL) ON WITH
DIAGNOSTIC TROUBLE CODE (DTC) P0456 - BUILT
ON OR BEFORE 4/14/2008
FORD:
2006-2008 Explorer
2007-2008 Explorer Sport Trac
MERCURY:
2006-2008 Mountaineer
This article supersedes TSB 08-16-10 to add a production fix date.
ISSUE
Some 2006-2008 Explorer, Mountaineer and 2007-2008 Sport Trac vehicles built on or before 4/14/2008 may exhibit a malfunction indicator lamp
(MIL) on with diagnostic trouble code (DTC) P0456 in the powertrain control module (PCM) memory with no other PCM trouble codes.
ACTION
Follow the Service Procedure steps to reprogram the PCM and the transmission control module (TCM) if necessary.
SERVICE PROCEDURE
Use the correct procedure for the vehicle application you are working on. For all 4.0L engines follow Procedure A and for all 4.6L engines follow
Procedure B.
Procedure A (4.0L Engine)
1.
Reprogram the PCM to the latest calibration using Integrated Diagnostic System (IDS) release 52.8 and higher or 53.1 and higher. This new
calibration is not included in the VCM 2007.11 DVD. Calibration files may also be obtained at the website.
Procedure B (4.6L Engine)
NOTE
VEHICLES EQUIPPED WITH A PCM AND TCM, REQUIRE A COORDINATED REPROGRAMMING. THIS COORDINATED
REPROGRAMMING PROCEDURE MUST BE FOLLOWED EXACTLY AS OUTLINED BY THE IDS. FAILURE TO FOLLOW THE KEY
CYCLE PROCEDURE WITHOUT WAITING FOR THE IDS PROMPTS, WILL CAUSE THE COORDINATED REPROGRAMMING TO FAIL.
THE PCM WILL BE UPDATED BUT THE 1CM WILL NOT BE UPDATED AND THE NEW FILES WILL NOT BE INSTALLED. IT IS
CRITICAL TO FOLLOW THE IDS PROMPTS
1.
Install IDS / Portable Diagnostic Software (PDS) or equivalent and identify (ID) the vehicle.
2.
Update the PCM and TCM calibration using IDS release 52.8 and higher or 53.1 and higher. This new calibration is not included in the VCM
2007.11 DVD. Calibration files may also be obtained at the website. Since the TCM cannot be independently reprogrammed, reprogram the PCM
to ensure that engine and transmission calibrations are updated to the latest level simultaneously.
3.
Clear TCM keep alive memory (KAM) and adaptive tables.
a.
Using IDS:
(1)
Open Toolbox.
(2)
Choose Powertrain.
(3)
Choose Reset KAM.
(4)
Then Choose TCM.
b.
Using PDS:
