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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    Diagnostic trouble code chart
    The inspection procedures are shown in the table below. This table allows efficient and accurate troubleshooting using the diagnostic trouble codes displayed in the diagnostic trouble code chart. Proceed with troubleshooting in accordance with the inspection procedures listed in the diagnost ...

    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 connector between the airbag sensor assy center and the horn button assy.  for the black ...

    Replacement
    1. Remove console box sub–assy rear 2. Remove parking brake lever sub–assy 3. Remove exhaust pipe assy front 4. Remove front floor heat insulator no.1 Remove the 3 nuts and front floor insulator no.1. 5. Remove front floor heat insulator no.2 Remove the 2 nuts and front ...