Toyota Corolla (E120): Diagnostic trouble code chart

Pre–check

Terminals of ecu

Other materials:

Basic inspection
When the malfunction is not confirmed in the dtc check, troubleshooting should be carried out in all the possible circuits considered as causes of the problem. In many cases, by carrying out the basic engine check shown in the following flowchart, the location causing the problem can be found ...

Body dimension drawings
Engine compartment Body opening areas (side view: front) Body opening areas (side view: rear) Sedan Body opening areas (rear view) Sedan Under body Under body Front suspension crossmember Front suspension crossmember ...

Monitor description
Dtc p0451, p0452 or p0453 is recorded by the ecm when the vapor pressure sensor malfunctions. P0451 The ecm senses pressure in the fuel tank using the vapor pressure sensor. The ecm supplies the sensor with a regulated 5 v reference–voltage and the sensor returns a signal voltage betwee ...