This likely refers to Updates (UPD) or a specific Updated sensor or wiring harness configuration in the emission control system 50.17.110.71.
A major milestone in the Vitz update cycle was the introduction of the 1.5-liter hybrid system Fuel Economy : This system achieved a class-leading (under Japanese test cycles). Smart Packaging p69b toyota vitz upd
On the side of the engine block (near the oil pressure switch), remove the small bolt housing the filter screen. If clogged, clean with brake cleaner and compressed air. Replace if damaged. This likely refers to Updates (UPD) or a
UPD stands for (or sensor). Some technical documents refer to it as the fuel tank pressure sensor or evaporative emission (EVAP) system pressure sensor. However, Toyota’s UPD system is slightly different from standard EVAP setups. p69b toyota vitz upd