Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Toyota vehicle intrusion protection system / Ignition switch circuit / Circuit description
Toyota Corolla (E120): Circuit description
If the ignition switch is turned to the on position, battery positive voltage is applied to the switches, such as terminal ig of the ecu.
Wiring diagram
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Have the malfunction repaired immediately. (vehicles with a smart key system)
After taking the specified steps to correct the suspected problem, check that
the warning message and light go off.
■Warning buzzer ...
Wiring
Power source
Location
...
Fuel
Service data
Torque specification
Emission control
Service data
...