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

Other materials:
Removal and installation of engine intake parts
If any metal tip is mixed in the inlet pass, this may give a
bad effect to the engine and turbocharger.
when removing and installing the inlet system parts,
close the opening of the removed inlet system parts and
the engine with a clean shop rag or gummed tape.
when inst ...
Bluetooth® Audio (Multimedia system)
Listening to Bluetooth® Audio
The Bluetooth® audio system enables the user to enjoy music played on a portable
player from the vehicle speakers via wireless communication.
When a Bluetooth® device cannot be connected, check the connection status on
the “Bluetooth* Audio” screen. If the ...
Light control switch circuit
Wiring diagram
Inspection procedure
1 Check headlamp dimmer switch assy (light control switch)
2 Check wire harness (tvip ecu light control switch)
Disconnect the tvip ecu and light control switch connectors.
check the continuity between the terminals of the tvip
e ...


