Toyota Corolla (E170): Horn

To sound the horn, press on or close to the mark.

CAUTION

CAUTION

■Caution while driving

Do not adjust the steering wheel while driving.

Doing so may cause the driver to mishandle the vehicle and cause an accident, resulting in death or serious injury.

■After adjusting the steering wheel

Make sure that the steering wheel is securely locked.

Otherwise, the steering wheel may move suddenly, possibly causing an accident, and resulting in death or serious injury. Also, the horn may not sound if the steering wheel is not securely locked.

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    Circuit description
    The shift solenoid valve sl is turned ”on” and ”off” by signals from the ecm in order to control the hydraulic pressure operation, the lock–up relay valve, which then the controls operation of the lock–up clutch. Fail safe function: if the ecm detects a malfunction, it turns the ...

    Inspection procedure
    1 Check d squib circuit(airbag sensor assy center – horn button assy) Disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.  disconnect the connectors between the horn button assy and the airbag sensor assy center.  for the blac ...

    Inspection procedure
    1 Check p/t squib(lh) circuit(airbag sensor assy center – front seat outer 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 seat belt pretensio ...