Toyota Corolla (E120): Circuit description

When the tvip system is transferred from the armed state to the alarm sounding state, the tvip ecu switches on the horn relay so that it can sound the horns. The horn sounds in 0.4 Seconds interval.

Wiring diagram

Inspection procedure

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    Disposal
    Hint: when scrapping vehicle equipped with an srs or disposing of a horn button assy, always first deploy the airbag in accordance with the procedure described below. If any abnormality occurs in the airbag deployment, contact the service dept. Of toyota motor sales, u.S.A., Inc. Caution: ...

    Checking and replacing fuses
    If any of the electrical components do not operate, a fuse may have blown. If this happens, check and replace the fuses as necessary. 1 Turn the engine switch off. 2 Open the fuse box cover. ► Engine compartment Push the tab in and lift the lid off. ► Under the driver’s side i ...

    Inspection procedure
    1 Check wire harness(airbag sensor assy center – front seat inner belt assy lh) Disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.  disconnect the connectors between the airbag sensor assy center and the front seat inner belt assy ( ...