Should I be worried?

[so54i88]

Greetings guys and gals. I came across this failure when playing with the OBD toggle. Does anyone know if this needs to be checked by the dealer? It's a 2017 model with 1,000kms on the clock.

[thehunteroz]

so54i88 I'd get it to your dealer, No idea what that module is that being said I do recall there being an issue with the airflow sensor which would could be consistent with the KPA reading it reads air pressures. dandin any ideas bud?

[so54i88]

Thanks thehunteroz! I took the car to the dealer who will do a full diagnostic when I go in to have the steering shaft boot replaced in a few days. I will report back.

[thehunteroz]

No problem mate.

[dandin]

You have a OBDLink reader? I have used the OBDLink app and mine gives the same error for all my cars. I wouldn't worry about it, I believe it's some emissions crap for North American cars (ie Smog testing)

[Kiat]

I have the same error too but no fault codes through obd. I don't think techstream reported any errors either. car still runs normal.

[davidd]

Does this app give readouts for fuel system and injector compensation readouts?

[so54i88]

Got a full scan at the dealership. No fault codes. Still not sure what $B9 failure is but as other suggested this doesn't seem to show up on Toyota's system.

[so54i88]

Does this app give readouts for fuel system and injector compensation readouts?

I'm not sure sorry. Maybe google OBDlink app?

[Spook1205]

The airmass sensor has two readings
One is just air temp which gives a voltage output the other is the airmass which is a frequency signal (Fortuna has this) that ranges from about 2k up to about 8k + hertz under full load. Airmass (MAF) used in Fortuna isn't a measure of Kpa that is found in a MAP sensor. Although a MAP and MAF sensor can either have an output signal for engine load in variable voltage or frequency. Its just derived from a different means one being airflow the other air pressure.
hope this helps for general knowledge guys.
cheers, Spook.