HONDA

A25-040

Manufacturer communications

Publication date: 2025-06-25
Received by NHTSA: 2025-07-02
NHTSA record numbers: 11020082

Manufacturer summary

Original wording in English

Service Bulletin - The MIL comes on with DTC P0139 (secondary heated oxygen sensor slow response) due to the ECM/PCM misinterpreting the secondary heated oxygen sensor output and sets DTC P0139.

NHTSA manufacturer communications ↗

Reported code forms

P0139

Manufacturer wording

Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.

HondaP0139

secondary heated oxygen sensor slow response

NHTSA 11020082

Check vehicle applicability

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Make	Model	Model year
Honda	ACCORD HYBRID	2017

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