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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    Inspection procedure
    1 Check low pitched horn assy Connect the positive (+) lead from the battery to the terminal and negative (–) lead to the horn body, and check that the horn blows. 2 Check relay (marking: horn) Remove the relay from the engine room j/b.  check the horn relay conti ...

    Overhaul
    1. Inspect 1st gear thrust clearance Using a feeler gauge, measure the 1st gear thrust clearance. Standard clearance: 0.10 – 0.40 Mm (0.0039 – 0.0157 In.) 2. Inspect 2nd gear thrust clearance Using a dial indicator, measure the 2nd gear thrust clearance. Standard clearan ...

    Engine (ignition) switch (vehicles without a smart key system)
    Starting the engine 1. Check that the parking brake is set. 2. Check that the shift lever is in P. 3. Firmly depress the brake pedal. 4. Turn the engine switch to START to start the engine. ■If the engine does not start The engine immobilizer system may not have been deactivated. Contact your Toy ...