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Service bulletin 02050A

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 id10001024
Published by NHTSA2003-04-10
Manufacturer's number02050A
Manufacturer's date2003-01-22
Replaces02050
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

MALFUNCTION INDICATOR LAMP ON WITH DIAGNOSTIC TROUBLE CODE P0420/P0430 BANK-1 / BANK-2 CATALYST STORED. *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
INFINITI QX42001

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

Recalls for the same vehicles and component
00V4100002000-12-05. ELECTRICAL SYSTEM:IGNITION

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
ITB13-052E2024-06-28. Service bulletin. INTELLIGENT KEY NOT DETECTED / ENGINE WILL NOT START This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB08024C2021-05-10. Service bulletin. SERVICE INFORMATION Information necessary to service the Supplemental Restraint System (SRS) safely is included in the "RESTRAINTS" section of the Electronic Service Manual (ESM) for each vehicle IMPORTANT: Turn the ignition switch OFF, disconnect both battery terminals, and wait at least 3 minutes before performing any service on the SRS. See this bulletin for further detail.
ITB98011F2021-05-10. Service bulletin. As part of an enhanced emissions test for Inspection & Maintenance (I/M), some States may require the System Readiness Test (SRT) status be checked. - The SRT is used to indicate whether the engine control module (ECM) has completed self diagnosis of major emissions systems and components. - In these instances the State may require completion of the SRT before permitting the emissions inspection to proceed. Refer to this Bulletin for further details.
ITB16-006A2021-04-08. Service bulletin. INFINITI; FRONT SONAR PARKING SENSOR SERVICE INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB09-015h2017-10-15. Service bulletin. 12 VOLT BATTERY STORAGE AND MAINTENANCE FOR NEW VEHICLES IN RETAILER INVENTORY This bulletin has been amended throughout. Please discard all previous versions of this bulletin.
ITB-11-049-B2012-07-12. Service bulletin. INFINITI: REPROGRAMMING ELECTRONIC CONTROL UNIT (ECU) ON ALL QUALIFYING VEHICLES. NO MODELS LISTED. MODEL YEARS 1998-2013. *PE
ITB-09-0202009-08-07. Service bulletin. INFINITI: ELECTRONIC CONTROL UNIT DAMAGE CAN RESULT FROM IMPROPER BATTERY CONNECTION. THE BATTERY IS REQUIRED TO STAY CONNECTED WHEN THE ENGINE IS RUNNING. NO MODEL YEARS LISTED. *PE
ITB99046B2001-04-12. Service bulletin. A CONDITION MAY EXIST WHERE THE ENGINE WILL NOT START OR INTERMITTENT NO START CONDITION IS EXPERIENCED. THIS BULLETIN DESCRIBES AND INTRODUCES NEW FEATURES OF THE VEHICLE IMMOBILIZER SYSTEM / NISSAN ANTI-THEFT SYSTEM (IVIS / NATS). *TT
ITB99046A2000-04-26. Service bulletin. THIS BULLETIN DESCRIBES AND INTRODUCES NEW FEATURES OF THE INFINITI VEHICLE IMMOBILIZER SYSTEM / NISSAN ANTI-THEFT SYSTEM (IVS / NATS). *TT