Toyota Vios electrical problem

[Adiudon]

Definatly sounds like a loose connection or something connection breaking down when warm or vibrating.

An OBDII reader could narrow down the search to what system is loosing the power but I would start by checking all connections and plugs that are accessable.

With all electrical power being lost it points to a main feed, battery, alternator, fuse box or vehicle modules.

OBDII readers are available on Lazada for 100B plug in and connect via wifi to your phone.

[3STTW]

Have you had the engine bay cleaned recently?

 

Buddy of mine has a 1YO Yaris and they went through the main fuse box harness with the pressure washer, same symptoms as yours. Took Toyota 2 weeks to fix it.

 

Same thing happened to another colleague with Ranger but it only affected the lights. Thing looked like a one-armed bandit going down the road.

 

[snowgard]

First hit by search on google: https://www.carmudi.com.ph/advice/common-toyota-vios-problems-and-how-to-fix-them/