Engine Controls - Steering Too Light at Highway Speeds

TSB 05-26-13

12/31/05

LIGHT STEERING EFFORTS AT HIGHWAY SPEEDS

FORD:
2005-2006 Crown Victoria

LINCOLN:
2006 Town Car

MERCURY:
2005-2006 Grand Marquis

ISSUE
On some 2005-2006 Crown Victoria/Grand Marquis and 2006 Town Car vehicles, complaints of light steering efforts at highway speeds have been received. This may be due to the variable assist power steering (VAPS) system defaulting to full assist. The default condition will last until the next key on/off cycle and may occur when the customer's vehicle is driven at a speed of approximately 2 MPH (3 Km/h) for at least 3 seconds.

ACTION
Reprogram the PCM to the latest calibration using WDS release B40.7 and higher or B41.1 and higher. This new calibration is not included in the B41 CD. Calibration files may also be obtained at the website.

WARRANTY STATUS: Eligible Under Provisions Of New Vehicle Limited Warranty Coverage

OPERATION DESCRIPTION TIME

052613A 2005-2006 Crown 0.4 Hr.
Victoria/Grand Marquis and
2006 Town Car:
Reprogram The Powertrain
Control Module (Do Not
Use With Operation
12650D, 12650D84)

DEALER CODING
CONDITION
BASIC PART NO. CODE
RECAL 04





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