Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Sfi system / Catalyst system efficiency below threshold

Toyota Corolla (E120): Catalyst system efficiency below threshold

Dtc p0420 catalyst system efficiency below threshold (bank 1)

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Front seats
Adjustment procedure Manual seat Seat position adjustment lever Seatback angle adjustment lever Vertical height adjustment lever (driver's side only) Power seat (driver's side only) WARNING ■When adjusting the seat position Take care when adjusting the seat position to ensure that ot ...

Circuit description
The throttle position sensor is mounted in the throttle body and detects the throttle valve opening angle. When the throttle valve is fully closed, a voltage of approximately 0.3 To 1.0 V is applied to terminal vta of the ecm. The voltage applied to terminal vta of the ecm increases in pro ...

Driving assist systems
To help enhance driving safety and performance, the following systems operate automatically in response to various driving situations. Be aware, however, that these systems are supplementary and should not be relied upon too heavily when operating the vehicle. ◆ ABS (Anti-lock Brake Sys ...