Engine, Engine Controls - MIL ON, DTC P0234 Set
TSB 13-2-1402/22/13
3.5L GTDI - MIL ILLUMINATED WITH DTC P0234 -
BUILT ON OR BEFORE 5/24/2012
FORD:
2011-2012 F-150
This article supersedes TSB 12-3-14 to update production fix date and Service Procedure.
ISSUE
Some 2011-2012 F-150 vehicles equipped with 3.5L Gasoline Turbocharged Direct Injection (GTDI) engine and built on or before 5/24/2012 may exhibit an intermittent malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P0234.
ACTION
Follow the Service Procedure steps to correct the condition.
SERVICE PROCEDURE
1. Is the vehicle built on or before 1/17/2012?
a. Yes - proceed to Step 2.
b. No - proceed to Step 10.
2. Remove the engine appearance cover.
3. Remove the turbocharger vacuum regulator solenoid mounted on the right side of the upper intake manifold. (Figure 1)
4. Remove the vacuum tee and vacuum supply hose connecting the turbocharger vacuum regulator solenoid to the upper intake manifold. (Figure 2)
5. Disconnect the vacuum supply hose from the vacuum tee.
6. Insure the vacuum supply hose is clear of any internal contamination.
7. Trim any exposed plastic material flashing off the vacuum tee using a razor blade or equivalent tool. (Figure 3)
8. Install the vacuum tee and vacuum supply hose.
9. Install a new Turbocharger Vacuum Regulator Solenoid.
10. Reprogram the powertrain control module (PCM) to the latest calibration using IDS release 83.01 or higher. Calibration files may also be obtained at the website.
NOTE
PLEASE ADVISE THE CUSTOMER THAT THIS VEHICLE IS EQUIPPED WITH AN ADAPTIVE TRANSMISSION SHIFT STRATEGY WHICH ALLOWS THE VEHICLE'S COMPUTER TO LEARN THE TRANSMISSION'S UNIQUE PARAMETERS AND IMPROVE SHIFT QUALITY. WHEN THE ADAPTIVE STRATEGY IS RESET, THE COMPUTER WILL BEGIN A RE-LEARNING PROCESS. THIS RE-LEARNING PROCESS MAY RESULT IN FIRMER THAN NORMAL UPSHIFTS AND DOWNSHIFTS FOR SEVERAL DAYS.
WARRANTY STATUS: Eligible Under Provisions Of New Vehicle Limited Warranty Coverage And Emissions Warranty Coverage
Warranty/ESP coverage limits/policies/prior approvals are not altered by a TSB. Warranty/ESP coverage limits are determined by the identified causal part and verified using the OASIS part coverage tool.
OPERATION DESCRIPTION TIME
130214A 2011-2012 F-150 3.5L 0.4 Hr.
GTDI: Check DTCs,
Reprogram The PCM
Includes Time To Clear
Codes After Repair (Do
Not Use With Any Other
Labor Operations)
130214B 2011-2012 F-150 3.5L 0.7 Hr.
GTDI: Check DTCs,
Reprogram The PCM,
Replace The Waste Gate
Regulator Solenoid
Includes Time To Clean
The Vacuum Tee and
Clear Codes After Repair
(Do Not Use With Any
Other Labor Operations)
DEALER CODING
CONDITION
BASIC PART NO. CODE
9K378 49
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