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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    Inspection procedure
    Hint: read freeze frame data using the hand-held tester or the obd ii scan tool. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, the ...

    Air conditioning controls
    ■ Adjusting the temperature setting To adjust the temperature setting, turn clockwise to increase the temperature and turn counterclockwise to decrease the temperature. ■ Fan speed setting Press “>” on to increase the fan speed. Press “<” on to decrease the ...

    Removal & installation and disassembly & reassembly
    1. Remove bench type rear seat cushion assy 2. Remove rear floor service hole cover Remove the rear service hole cover. Disconnect the fuel pump and vapor pressure sensor connector. 3. Work for preventing gasoline from spilling out Start the engine.  after the engi ...