Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Toyota vehicle intrusion protection system / Tvip ecu communication circuit
Toyota Corolla (E120): Tvip ecu communication circuit
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Steering wheel audio switches
Some audio features can be controlled using the switches on the steering wheel.
Operation may differ depending on the type of multimedia system or navigation
system. For details, refer to the manual provided with the multimedia system or
navigation system.
Operating the multimedia system using ...
Circuit description
Monitor description
The ecm commands gearshift by turning the shift solenoid valves ”on/off”.
When there is an open or short
circuit in any shift solenoid valve circuit, the ecm detects the problem and the
mil comes on. Illuminating
the mil, the ecm performs the fail–safe and turns ...
Playing audio CDs and MP3/WMA discs
CD player operation
Insert a disc or press to begin
listening to a disc.
1 Power
2 Volume
3 Eject a disc
4 Repeat play
5 Random playback 6 Select a track/file or display
track/folder list
7 Displays text message
8 Playback
9 Select a folder (MP3/WMA discs only), fast-forward or revers ...


