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:
Maintenance requirements
To ensure safe and economical
driving, day-to-day care
and regular maintenance
are essential. It is the
owner's responsibility to
perform regular checks.
Toyota recommends the
maintenance below.
■Repair and replacement
It is recommended that genuine
Toyota parts be used for repairs to
ensure perf ...
Circuit description
The rotary solenoid type idle air control (iac) valve is located
under the throttle body and intake air bypassing the throttle
valve flows into the iac valve through the passage.
In this way the intake air volume bypassing the throttle valve is
regulated, controls the engine speed.
The ...
Pre–check
1. Srs warning light check
Turn the ignition switch to the on position and check that
the srs warning light lights up.
check that the srs warning light goes out after approx.
6 Seconds.
Hint:
when the ignition switch is at on and the srs warning
light remains on or flashes, the ...


