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
    1 Check voltage at ig2 of airbag sensor assy center Disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.  disconnect the connector of the airbag sensor assy center.  connect the negative (–) terminal cable to the battery, and wa ...

    Inspection
    1. Intake air flow meter sub–assy Inspect the intake air flow meter resistance.  Using an ohmmeter, measure the resistance between terminals tha and e2. Resistance: at –20 c (–4 f) 13.6 To 18.4 KΩ at 20 c (68 f) 2.21 To 2.69 KΩ at 60 c (140 f) 0.49 To 0.67 ...

    Trip information
    ■ Switching the display Items displayed can be switched by pressing the display change button. ■ Odometer Displays the total distance the vehicle has been driven. ■ Trip meter A/trip meter B Displays the distance the vehicle has been driven since the meter was last reset. ...