Toyota Corolla (E120): Circuit description

This is the power source of the ecu, hence the actuators.

Wiring diagram

Wiring diagram

Inspection procedure

    Share this page:

    Other materials:

    Inspection procedure
    Hint: read freeze frame data using the hand–held tester or the obd ii scan tool. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, th ...

    Customer problem analysis
    Hint: in troubleshooting, the problem symptoms must be confirmed accurately, meaning that all preconceptions must be set aside in order to make an accurate judgement. To ascertain what the problem symptoms are, it is extremely important to ask the customer about the problem and cond ...

    Brake fluid
    Bleeding Notice: wash the brake fluid off immediately if it comes into contact with any painted surface. Hint: if any work is done on the brake system or if air in the brake lines is suspected, bleed the air from the system. 1. Fill reservoir with brake fluid fluid: sae j1703 or fmvss no. ...