Toyota Corolla (E120): Ignition switch circuit

Ecu power source circuit

Circuit description

Other materials:

Warning light and warning buzzer list
*1: Parking brake engaged warning buzzer: *2: Open door warning buzzer: *3: Vehicles with a drive monitor display *4: Vehicles with a multi-information display *5: Driver’s seat belt buzzer: Vehicles without a smart key system: The driver’s seat belt buzzer sounds to alert the d ...

Overhaul
Hint: overhaul the rh side by the same procedure as the lh side. 1. Remove front wheel 2. Drain brake fluid Notice: wash the brake fluid off immediately if it comes into contact with any painted surface. 3. Remove front disc brake cylinder sub–assy Remove the union bolt and gasket ...

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 ...