Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Toyota vehicle intrusion protection system / Indicator light circuit / Inspection procedure
Toyota Corolla (E120): Inspection procedure
1 Check security indicator light

- Remove the security indicator.
- check the indicator light, as shown in the illustration and table.
Standard:



2 Check wire harness (tvip ecu security indicator)

- Disconnect the tvip ecu and security indicator connectors.
- check the continuity between the terminals of the tvip ecu connector and security indicator connector, as shown in the illustration and table.
Standard:



3 Check wire harness (security indicator body ground)

- Disconnect the security indicator connector.
- check the continuity between the terminal of the security indicator connector and body ground, as shown in the illustration and table.
Standard:



Check and replace tvip ecu
Other materials:
Eco Driving Indicator Light customization (except vehicles with a manual transmission)
Eco Driving Indicator Light can be activated or deactivated.
1 While the odometer is being displayed, press and hold the “DISP” switch to
display the Eco Driving Indicator Light customization screen.
2 Press the “DISP” switch to set Eco Driving Indicator Light to on or off.
3 Press and ...
Inspection procedure
1 Check d squib circuit(airbag sensor assy center – horn button
assy)
Disconnect the negative (–) terminal cable from the battery,
and wait at least for 90 seconds.
disconnect the connectors between the airbag sensor
assy center and the horn button assy.
for the oran ...
Turning on light switch does not light up night time
illumination of radio receiver
Wiring diagram
Inspection procedure
1 Inspect radio receiver assy(ill+, ill–)
Check that the voltage between terminals at each condition,
as shown in the chart.
Standard:
Repair or replace harness or connector ...


