Toyota Corolla (E120): Diagnostics

Preparation

Sst

09816–30010 09816–30010 Oil pressure switch socket Sfi system
09843–18040 09843–18040 Diagnosis check wire no.2 Sfi system supplemental restraint system

Recomended tools

09082–00040 09082–00040 Toyota electrical tester Sfi system supplemental restraint system electronic controlled automatic transaxle [ect] combination meter wireless door lock control system
(09083–00150) (09083–00150) Test lead set Sfi system abs with ebd system supplemental restraint system electronic controlled automatic transaxle [ect] audio system cruise control system combination meter wireless door lock control system power door lock control system
(09083–00150) (09083–00150) Test lead set Sfi system abs with ebd system supplemental restraint system electronic controlled automatic transaxle [ect] audio system cruise control system combination meter wireless door lock control system power door lock control system

Engine control system

Preparation

Equipment

Ohmmeter  
Radiator cup tester  
Torque wrench  
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    Other materials:

    Adding the washer fluid
    Add washer fluid in the following situations: A washer does not work. The warning message appears on the multi-information display. WARNING ■When adding washer fluid Do not add washer fluid when the engine is hot or running as washer fluid contains alcohol and may catch fire if spilled on t ...

    If the vehicle battery is discharged
    The following procedures may be used to start the engine if the vehicle's battery is discharged. You can also call your Toyota dealer or a qualified repair shop. Restarting the engine If you have a set of jumper (or booster) cables and a second vehicle with a 12-volt battery, you can jump start you ...

    Circuit description
    In the diagram below, when the engine is cranked, current flows from terminal st2 of the ignition switch to the starter relay coil and also current flows to terminal sta of the ecm (sta signal). When the sta signal and ne signal are input to the ecm, tr is turned on, current flows to the c ...