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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    Definition of terms
    Term Definition Monitor description Description of what the ecm monitors and how it detects malfunction (monitoring purpose and its details). Related dtcs Diagnostic code Typical enabling condition Preconditions that allow the ecm to detect m ...

    Inspection procedure
    1 Check relay (marking: starter cut) Inspect the relay continuity, as shown in the illustration and table. Standard: 2 Check tvip ecu Disconnect the tvip ecu connector.  turn the ignition switch position to the start.  measure the voltage between the termina ...

    Before driving
    Observe the following before starting off in the vehicle to ensure safety of driving. Floor mat Use only floor mats designed specifically for vehicles of the same model and model year as your vehicle. Fix them securely in place onto the carpet. 1. Insert the retaining hooks (clips) into the floor ma ...