Toyota Corolla (E120): Circuit description

This is the power source of the ecu, hence the actuators.

Wiring diagram

Wiring diagram

Inspection procedure

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    Overhaul
    Hint: components: 1. Remove rear wheel 2. Remove spare wheel cover assy 3. Remove rear floor finish plate 4. Remove luggage compartment trim cover inner lh 5. Remove rear shock absorber with coil spring Support the rear axle beam with jack. Remove the 2 nuts and bolt. ...

    Inspection procedure
    1 Check source voltage Measure the voltage of the battery. Ok: voltage: 10 – 14 v 2 Check air bag sensor assy center Disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.  disconnect the connectors from the airbag sensor assy ...

    Circuit description
    The park/neutral position switch detects the shift lever position and sends signals to the ecm. Monitor description The park/neutral position switch detects the gearshift position and sends a signal to the ecm. For security, the park/neutral position switch detects the gearshift positio ...