The indicated TSB does not apply to the Contour therefore the TSB reference should be ignored. See the PCED for the Contour for proper diagnostics to resolve the DTC.
See below for text of TSB-19-6:
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FORD:
1997 CROWN VICTORIA
LINCOLN-MERCURY:
1997 GRAND MARQUIS, MARK VIII, TOWN CAR
LIGHT TRUCK:
1997 ECONOLINE, EXPLORER
This TSB article is being republished in its entirety to add calibrations.
CALIBRATION:
7-18E-R06, 7-18F-R06, 7-18H-R06, 7-18I-R10, 7-18J-R06, 7-18M-R06, 7-18N-R06, 7-18Q-R06, 7-18S-R06, 7-38K-R07, 7-38L-R07, 7-54G-R10, 7-57B-R05, 7-57R-R05, 7-58B-R05, 7-58C-R06, 7-58V-R06, 7-74U-R06, 7-74V-R06, 7-96T-R06
WARNING:
THIS MODIFICATION IS AUTHORIZED ONLY FOR THE LISTED ENGINE. PERFORMING THIS MODIFICATION ON OTHER ENGINE CALIBRATIONS IS UNAUTHORIZED AND COULD CREATE LIABILITY UNDER APPLICABLE FEDERAL OR LOCAL LAWS.
ISSUE:
The Malfunction Indicator Lamp (MIL) may illuminate and Diagnostic Trouble Code (DTC) P0446 may be stored in memory. This may be caused by On-Board Diagnostics II (OBD II) performing checks when conditions are not ideal.
ACTION:
Perform normal diagnostics as outlined in the Powertrain Control/Emissions Diagnosis (PC/ED) Service Manual and reprogram the Powertrain Control Module (PCM). Refer to the following PCM Application Chart for correct PCM Calibration.
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Steve
