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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    General information
    There are many ecu controlled systems used in the corolla. In general, ecu controlled system are considered to be very intricate and require a high level of technical knowledge and expert skill to troubleshoot. The fact is, however, that if you proceed by inspecting the circuits one by one, ...

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    Inspection procedure
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