Toyota Corolla (E120): Circuit description

The actuator motor is operated by signals from the cruise control ecu assy. Acceleration and deceleration signals are transmitted by changes in the duty ratio (see below).

Duty ratio: the duty ratio is the ratio of the period of continuity in one cycle. For example, if a is the period of continuity in one cycle, and b is the period of non–continuity, then

Wiring diagram

Wiring diagram

Inspection procedure

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    If the shift lever cannot be shifted from P (except vehicles with a manual transmission)
    If the shift lever cannot be shifted with your foot on the brake pedal, there may be a problem with the shift lock system (a system to prevent accidental operation of the shift lever). Have the vehicle inspected by your Toyota dealer immediately. The following steps may be used as an emergency ...

    On–vehicle inspection
    1. Check basic function (manual operation function)  turn the ignition switch on.  Check that the door glass moves up when each window switch of the regulator master switch assembly is turned up and moves down when each window switch is turned down.  Check that the do ...

    Inspection procedure


    Hand–held tester: 1 Check operation of stop light Check if the stop lights go on and off normally when the brake pedal is depressed and released. 2 Inspect stop light switch assy Check the resistance between the terminals when the switch is turned on and off. Standard: ...