Toyota Corolla (E120): Circuit description

If the ignition switch is turned to the on position, battery positive voltage is applied to the switches, such as terminal ig of the ecu.

Wiring diagram

Inspection procedure

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    If the vehicle becomes stuck
    Carry out the following procedures if the tires spin or the vehicle becomes stuck in mud, dirt or snow: 1 Stop the engine. Set the parking brake and shift the shift lever to P (automatic transmission or continuously variable transmission) or N (manual transmission). 2 Remove the mud, snow or s ...

    Parking the vehicle
    ► Automatic transmission or continuously variable transmission􀁘 Automatic transmission or continuously variable transmission 1 With the shift lever in D, depress the brake pedal. 2 Shift the shift lever to P. 3 Set the parking brake. 4 Vehicles without a smart key system: Turn ...

    On–vehicle inspection
    1. Check battery electrolyte level Check the electrolyte quantity of each cell (maintenance–free battery).  If under the lower level, replace the battery (or add distilled water if possible) and check the charging system.  check the electrolyte quantity of each cell ...