E 250 3/4 Ton Van V8-5.4L CNG VIN M (1997)
PROM - Programmable Read Only Memory: All Technical Service Bulletins
PCM - MIL ON/DTC P0446 Set
Article No.
97-19-6
09/15/97
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MALFUNCTION INDICATOR LAMP (MIL) - MIL
ILLUMINATION - DIAGNOSTIC TROUBLE CODE
(DTC) P0446 STORED IN MEMORY
^
LAMP - MALFUNCTION INDICATOR LAMP (MIL) -
MIL ILLUMINATION - DIAGNOSTIC TROUBLE CODE
(DTC) P0446 STORED IN MEMORY
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, 7-18O-R06, 7-18S-R06, 7-38K-R07, 7-38L-R07, 7-540-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.
NOTE:
REGIONAL APPROVAL MUST BE OBTAINED WHEN IT IS NECESSARY TO REPLACE THE PCM.
