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Service bulletin 04104

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10008993
Published by NHTSA2004-09-07
Manufacturer's number04104
Manufacturer's date2004-05-21
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

MALFUNCTION INDICATOR LAMP ILLUMINATED WITH DIAGNOSTIC TROUBLE CODE P0420 AND/OR P0430/ 2.5L ENGINE ONLY. *TT

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Electrical system

Trouble codes named

P0420, P0430

Vehicles listed
FORD CONTOUR1999, 2000
MERCURY COUGAR1999, 2000
MERCURY MYSTIQUE1999, 2000

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
01V2300002001-07-09. ELECTRICAL SYSTEM
20010422001-02-21. Electrical
01V0310002001-02-06. ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES
99V0600001999-03-17. ELECTRICAL SYSTEM:IGNITION:SWITCH

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
041742005-04-08. Service bulletin. MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATED - SYSTEM LEAN DIAGNOSTIC TROUBLE CODES (DTC'S) - SERVICE TIPS. VARIOUS MODELS INCLUDING 2004 F-SERIES. *TT
0415162005-01-06. Service bulletin. MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATED WITH DIAGNOSTIC TROUBLE CODE(S) P0420 AND/OR P0430. *TT
032032004-01-14. Service bulletin. MALFUNCTION INDICATOR LAMP ILLUMINATED WITH DIAGNOSTIC TROUBLE CODES (DTCS) P0442, P0455, P0456, P0457 OR P1442 OR A CHECK FUEL CAP LAMP ILLUMINATED WITH DTC P0457 FOR THE EVAPORATIVE EMISSION SYSTEM. *TT
031812003-11-14. Service bulletin. REMOTE KEYLESS ENTRY (RKE) - SERVICE TIPS. *TT
170092003-10-09. Service bulletin. MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATION WITH NO HARD FAULT. *TT
168802003-09-08. Service bulletin. INOPERATIVE SHIFT INTERLOCK SOLENOID OR REPEAT INSTRUMENT INTERFACE MODULE FAILURE. *TT
158302002-12-03. Service bulletin. BATTERY LAMP ON, HOWEVER THE CHARGING SYSTEM IS FUNCTIONING PROPERLY. *TT
158282002-12-03. Service bulletin. SOME VEHICLES MAY EXHIBIT DIAGNOSTIC TROUBLE CODE B1213, B1342, B1601, B2431. *TT
02452002-11-05. Service bulletin. INFORMATION REGARDING DISCHARGED BATTERY CHARGING SERVICE TIPS AND GUIDELINES. *TT
150202001-10-23. Service bulletin. SOME VEHICLES EQUIPPED WITH 2.5L ENGINES MAY EXHIBIT MULTIPLE MISFIRE DIAGNOSTIC TROUBLE CODES WITH NO DRIVEABILITY CONCERN NOTED. *TT