Toyota Corolla (E120): Circuit description

This circuit sends a signal to the cruise control ecu assy that dtc output is required.

Wiring diagram

Inspection procedure

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    Shifting the shift lever
    Vehicles without a smart key system: While the engine switch is in the “ON” position, depress the brake pedal and move the shift lever. Vehicles with a smart key system: While the engine switch is in IGNITION ON mode, depress the brake pedal and move the shift lever. When shifting the ...

    On–vehicle inspection
    1. Inspect cooling system for leaks Caution: to avoid the danger of being burned, do not remove the radiator cap while the engine and radiator are still hot, as fluid and steam can be blown out under pressure.  fill the radiator with coolant and attach a radiator cap tester.   ...

    Diagnostic trouble code chart
    If a dtc is displayed during the dtc check, check the circuit listed in the table below and proceed to the page given. * :● ... Mil light up ...