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:
Terminals of ecu
1. Inspect tvip ecu
Inspect the ecu–b, dome and ecu–ig fuses.
disconnect the tvip ecu connector, and the continuity and voltage of
check each terminal of the disconnected
connector.
Standard:
If the result is not as specified, the vehicle’s side may malfunction.
Reco ...
Body panel anti-rust agent (wax) application areas
Apply rustop w to the doors and hood edges (tips of outer panel folded parts)
and undersides, areas around
hinges, etc.To prevent rust. Coat the undersides of the edges using a nozzle and
air gun, and coat the areas around
the hinges using a brush.
Hint:
if rustop is unnecessarily ...
Emission inspection and maintenance (I/M) programs
Some states have vehicle emission inspection programs which include OBD (On
Board Diagnostics) checks. The OBD system monitors the operation of the emission
control system.
If the malfunction indicator lamp comes on
The OBD system determines that a problem exists somewhere in the emission cont ...


