Toyota Corolla (E120): Circuit description

The cruise control ecu assy power source supplies power to the actuator and sensors, etc., When terminal gnd and the case of the cruise control ecu assy are grounded.

Wiring diagram

Inspection procedure

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    If your vehicle has to be stopped in an emergency
    Only in an emergency, such as if it becomes impossible to stop the vehicle in the normal way, stop the vehicle using the following procedure: 1 Steadily step on the brake pedal with both feet and firmly depress it. Do not pump the brake pedal repeatedly as this will increase the effort required ...

    Replacement
    Hint: components: 1. Precaution 2. Disconnect battery negative terminal 3. Remove parking brake hole cover sub–assy 4. Remove floor shift shift lever knob sub–assy (m/t transaxle) 5. Remove shifting hole cover sub–assy (m/t transaxle) 6. Remove console panel upper 7. Remove conso ...

    How to proceed with troubleshooting
    The hand–held tester can be used at step 3, 4, 6, 9. 1 Vehicle brought to workshop 2 Customer problem analysis 3 Connect the obd ii scan tool or hand–held tester to dlc3 4 Check and clear dtc and freeze frame data 5 Visual inspection 6 Setting the check mode diagnosis 7 Proble ...