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-   -   "Reduced Engine Power, PCS off" warning (https://www.toyota-4runner.org/5th-gen-t4rs/302468-reduced-engine-power-pcs-off-warning.html)

swampy_swimmer 12-28-2021 07:37 PM
"Reduced Engine Power, PCS off" warning
 
2020 ORP Only 27K miles.
So I got this dashboard warning: Reduced Engine Power, Pre-Collision system Off, See Dealer" and a beep.

It was there for a little bit, then it went away, then came back. I shut and restarted the truck and it was off.

I have Sprint Booster for over 2 years on the truck and recently installed Start-X remote starter. Also AEM dry air filter. Those are all aftermarket adds that were installed on the vehicle.
I checked the codes with the OBDII reader (basic one, not sophisticated) and everything was clear.

Have someone experienced those warnings? What can case those?
Should I visit dealer till it still under warranty?

Saker 12-28-2021 08:26 PM
Quote:
Originally Posted by swampy_swimmer (Post 3698591)
2020 ORP Only 27K miles.
So I got this dashboard warning: Reduced Engine Power, Pre-Collision system Off, See Dealer" and a beep.

It was there for a little bit, then it went away, then came back. I shut and restarted the truck and it was off.

I have Sprint Booster for over 2 years on the truck and recently installed Start-X remote starter. Also AEM dry air filter. Those are all aftermarket adds that were installed on the vehicle.
I checked the codes with the OBDII reader (basic one, not sophisticated) and everything was clear.

Have someone experienced those warnings? What can case those?
Should I visit dealer till it still under warranty?
Possibly the remote starter affecting the can-bus system.
That’s been documented before.

swampy_swimmer 12-28-2021 08:38 PM
Oh, great...

swampy_swimmer 12-28-2021 09:29 PM
Do you think I can drive with it for some time, or should I reverse it ASAP?

Sounds like a silly question, but...

flyrv9 12-28-2021 09:38 PM
I would remove all the mods and see what happens. If the problem comes back, then take it to the dealer. If you take it in with the mods installed, chances are the dealer will blame them for the problem as other members of this group have experienced in the past.

swampy_swimmer 12-28-2021 09:42 PM
Quote:
Originally Posted by flyrv9 (Post 3698615)
I would remove all the mods and see what happens. If the problem comes back, then take it to the dealer. If you take it in with the mods installed, chances are the dealer will blame them for the problem as other members of this group have experienced in the past.
Right. I don't think it's the booster, as I had it for so long without anything going wrong, and the problem started after the remote start install.
Thanks. Good point on the dealer.

Saker 12-28-2021 10:21 PM
Quote:
Originally Posted by flyrv9 (Post 3698615)
I would remove all the mods and see what happens. If the problem comes back, then take it to the dealer. If you take it in with the mods installed, chances are the dealer will blame them for the problem as other members of this group have experienced in the past.
I can attest to this when my throttle body was throwing a code!
They said it was my SB, then they said it was LED bulbs!

tifflieger 12-29-2021 04:34 PM
Remove one mod at a time, starting with the remote starter.


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