# Service bulletin 0100301

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.

- Type: Service bulletin
- NHTSA id: 620007
- Published by NHTSA: 2001\-07\-09
- Manufacturer's number: 0100301
- Manufacturer's date: 2001\-02\-28
- NHTSA component: UNKNOWN OR OTHER

## NHTSA's summary

SOME VEHICLES MAY EXHIBIT MALFUNCTION INDICATOR LAMP ILLUMINATION WITH DIAGNOSTIC TROUBLE CODE \(DTC\) P0420 / 0421 OR P0430 / 0431 STORED IN MEMORY WITH NO DRIVEABILITY CONCERNS PRESENT. THIS CONDITION MAY BE CAUSED BY AN OVERLY SENSITIVE REAR OXYGEN SENSOR\(S\), WHICH FASELY INDICATES AN EMISSIONS CONCERN AND A DTC TO BE 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.

## Trouble codes named

P0420, P0430

## Vehicles listed

- 1997 to 2000 MAZDA MILLENIA

JSON: [/v1/bulletins/620007](/v1/bulletins/620007)

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