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Engine Controls - MIL ON/DTC's P0420/P0430 Set

Article No.
04-10-4

05/25/04

DRIVEABILITY - MALFUNCTION INDICATOR LAMP
(MIL) ILLUMINATED - DIAGNOSTIC TROUBLE CODES
(DTC'S) P0420 AND/OR P0430 - 2.5L ENGINE ONLY

FORD:
1999-2000 CONTOUR

MERCURY:
1999-2000 COUGAR, MYSTIQUE

ISSUE

Some 1999-2000 Contour/Mystique/Cougar vehicles equipped with the 2.5L engine may exhibit a malfunction indicator lamp (MIL) illuminated with diagnostic trouble code(s) P0420 (Catalyst System Efficiency Below Threshold - Bank 1) and/or P0430 (Catalyst System Efficiency Below Threshold - Bank 2).

ACTION

To service reprogram the powertrain control module (PCM) to the latest calibration using WDS release B31.4 or higher. Replacement of catalysts is no longer necessary to address the most common causes of this condition.

OTHER APPLICABLE ARTICLES: NONE

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





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