Toyota Corolla (E120): Circuit description

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

Wiring diagram

Wiring diagram

Inspection procedure

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    On–vehicle inspection
    1. Inspect w/receiver condenser assy  if a fin of the w/receiver condenser assy is dirty, clean it with water and dry it with compressor air. Notice: do not damage the fin of the w/receiver condenser assy.  if a fin of the w/receiver condenser assy is bent, make it straig ...

    Engine assembly
    Inspection 1. Inspect coolant 2. Inspect engine oil 3. Inspect battery 4. Inspect air cleaner filter element sub–assy 5. Inspect spark plug 6. Inspect fan and generator v belt Hint: you don’t need to check the belt deflection because auto tensioner is adopted. 7. Inspect ignition ti ...

    No sound is heard from speaker in all modes
    Wiring diagram Inspection procedure 1 Check lcd (liquid crystal display) for lighting Lcd illumination check  turn the ignition switch acc.  Turn the radio receiver assembly on. Standard: lcd illumination of the radio receiver assembly light. 2 Control fader and ...