# Service bulletin A21\-084

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: 10205454
- Published by NHTSA: 2021\-12\-22
- Manufacturer's number: A21\-084
- Manufacturer's date: 2021\-12\-16
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

Service Bulletin \- The MIL comes on with DTC P1F86 FC Cell Voltage Too Low \(Caution\).

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10205454-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10205454-9999.pdf)

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

## Components

Engine

## Trouble codes named

P1F86

## Vehicles listed

- 2019 to 2021 HONDA CLARITY FUEL CELL

## Other bulletins for the same vehicles and component

- [A21\-084](/bulletins/10202872.md), 2021-11-02, Service bulletin: ENGINE AND ENGINE COOLING. Service Bulletin \- The MIL comes on with DTC P1F86 FC Cell Voltage Too Low \(Caution\).
- [A21\-008](/bulletins/10187007.md), 2021-02-18, Service bulletin: ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ENGINE AND ENGINE COOLING. Service Bulletin \- The Hybrid System Failure message comes on the MID, and DTC P1D8D \(Generator Motor Inverter Short\) is stored.
- [APaS11192018901](/bulletins/10150421.md), 2018-12-04, Service bulletin: ENGINE AND ENGINE COOLING. "Dealer message \- AHM is studying the current replacement need for the ION filter \(PN 3H450\-5WM\-A01\). We would like to collect several samples in the field for this study."

JSON: [/v1/bulletins/10205454](/v1/bulletins/10205454)

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