Toyota Corolla (E120): Circuit description

The cruise control ecu assy power source supplies power to the actuator and sensors, etc., When terminal gnd and the case of the cruise control ecu assy are grounded.

Wiring diagram

Inspection procedure

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    Head restraints
    Head restraints are provided for all seats. WARNING ■Head restraint precautions Observe the following precautions regarding the head restraints. Failure to do so may result in death or serious injury. Use the head restraints designed for each respective seat. Adjust the head restraints to th ...

    Inspection procedure
    1 Check front airbag sensor (rh) circuit (to b+)(airbag sensor assy center – airbag front rh sensor) Disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.  disconnect the connectors between the airbag front rh sensor and the airbag sen ...

    Inspection procedure
    Hint: read freeze frame data using the hand-held tester or the obd ii scan tool. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, the ...