Toyota Corolla (E120): Circuit description

When the clutch pedal is depressed, the clutch switch sends a signal to the cruise control ecu assy. When the signal is input to the cruise control ecu assy during cruise control driving, the cruise control ecu assy cancels the cruise control.

Wiring diagram

Inspection procedure

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    If you have a flat tire
    Your vehicle is equipped with a spare tire. The flat tire can be replaced with the spare tire. WARNING ■If you have a flat tire Do not continue driving with a flat tire. Driving even a short distance with a flat tire can damage the tire and the wheel beyond repair, which could result in an acciden ...

    Inspection procedure
    1 Inspect dlc3 terminal voltage Turn the ignition switch to on.  measure voltage between terminals 13 (tc) and 4 (cg) of dlc3. Ok: voltage: 10 – 16 v 2 Check harness and connector(between cruise control ecu assy and dlc3) Check for open and short circuit in harness ...

    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, ...