Toyota Corolla (E120): Audio & visual

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Circuit description
When the ignition switch is turned on, battery positive voltage is applied to the coilwhich closes the contacts of the efi main relay (marked: efi) and supplies power to terminal +b of the ecm. This signal causes current to flow to the coil, closing the contacts of the efi relay and supplyin ...

Inspection procedure
1 Inspect fuse(stop) Turn the ignition switch to off.  remove the stop fuse from the instrument panel j/b.  check continuity of the stop fuse. Ok: continuity 2 Inspect stop lamp switch assy Disconnect the stop lamp switch assy connector. check continuity betw ...

If a warning light turns on or a warning buzzer sounds
Calmly perform the following actions if any of the warning lights comes on or flashes. If a light comes on or flashes, but then goes off, this does not necessarily indicate a malfunction in the system. However, if this continues to occur, have the vehicle inspected by your Toyota dealer. Actions to ...