Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Toyota vehicle intrusion protection system / Problem symptoms table
Toyota Corolla (E120): Problem symptoms table
Proceed to the reference page shown in the table below for each malfunction symptom and troubleshoot each circuit.
Hint
: troubleshooting of the tvip system is based on the premise that the door lock control system and wireless door lock control system is operating normally. Accordingly, before troubleshooting the tvip system, first make certain that the door lock control system and wireless door lock control system is operating normally.

Other materials:
Engine (ignition) switch (vehicles
without a smart key system)
Starting the engine
1. Check that the parking brake
is set.
2. Check that the shift lever is in
P.
3. Firmly depress the brake
pedal.
4. Turn the engine switch to
START to start the engine.
■If the engine does not start
The engine immobilizer system may
not have been deactivated.
Contact your Toy ...
For safe driving
For safe driving, adjust the
seat and mirror to an appropriate
position before driving.
Correct driving posture
Adjust the angle of the seatback
so that you are sitting
straight up and so that you do
not have to lean forward to
steer.
Adjust the seat so that you
can depress the pedals fully ...
Circuit description
In the diagram below, when the engine is cranked, current flows from terminal
st2 of the ignition switch to
the starter relay coil and also current flows to terminal sta of the ecm (sta
signal).
When the sta signal and ne signal are input to the ecm, tr is turned on, current
flows to the c ...


