Toyota Corolla (E120): Circuit description

When the clutch pedal is depressed, the clutch switch sends a signal to the cruise control ecu assy. When the signal is input to the cruise control ecu assy during cruise control driving, the cruise control ecu assy cancels the cruise control.

Wiring diagram

Inspection procedure

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    Monitor description
    While the engine is being cranked, the battery positive voltage is applied to terminal sta of the ecm. If the ecm detects the starter control signal (sta) while the vehicle is driving, it will conclude that there is a fault in the starter control circuit. The ecm will turn on the mil and a d ...

    What to do if... (Troubleshooting)
    If there is a problem with the hands-free system or a Bluetooth® device, first check the table below. ► When using the hands-free system with a Bluetooth® device ► When registering/connecting a cellular phone ► When making/receiving a call ► When using the p ...

    Inspection procedure
    1 Check p squib circuit(airbag sensor assy center – instrument panel passenger airbag assy) 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 instrument panel ...