# Service bulletin T\-SB\-0043\-23

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: 10241392
- Published by NHTSA: 2023\-08\-28
- Manufacturer's number: T\-SB\-0043\-23
- Manufacturer's date: 2023\-07\-10
- NHTSA component: SERVICE BRAKES, HYDRAULIC

## NHTSA's summary

TSB: Some 2021 ? 2022 model year Mirai vehicles may exhibit a MIL ON condition with one or both of the following Diagnostic Trouble Codes \(DTCs\) present: ?P1F6C71 ? Air Sealing Valve Actuator Stuck ?P1F6E71 ? Air Pressure Regulating Valve Actuator Stuck

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10241392-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10241392-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Brakes

## Trouble codes named

P1F6C, P1F6E

## Vehicles listed

- 2021 to 2022 TOYOTA MIRAI

## Other bulletins for the same vehicles and component

- [TSB004321Rev2](/bulletins/10224155.md), 2022-10-17, Service bulletin: PARKING BRAKE; EQUIPMENT. TSB: Some 2020 model year vehicles equipped with Audio Plus \(version 1021\) or Premium Audio \(version 1021\) or earlier may exhibit one or more of the following conditions: ?Barge in function defaulted to OFF. ?Limited phone book grammar. ?Difficult Hand Free operation. ?Abnormal Electronic Owner?s Manual operation. ?Music does not automatically resume when using Android Auto?. ?Cover art is not displayed. ?Vehicle position is not sent to Destination Assist server. ?System inoperative after using the return button when using voice recognition.

JSON: [/v1/bulletins/10241392](/v1/bulletins/10241392)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20T-SB-0043-23&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10241392&vehicle=Service%20bulletin%20T-SB-0043-23)