Toyota Corolla (E120): Inspection procedure
1 Check un–lock warning switch assy

- Disconnect the key unlock warning switch connector.
- check the continuity between the terminals of the key unlock warning switch connector, as shown in the illustration and table.
Standard:



2 Check wire harness (tvip ecu unlock warning switch)

- Disconnect the tvip ecu and key unlock warning switch connectors.
- check the continuity between the terminals of the tvip ecu connectors and unlock warning switch connector, as shown in the illustration and table.
Standard:



3 Check wire harness (key unlock warning switch body ground)

- Disconnect the key unlock warning switch connector.
- check the continuity between the terminal of the key unlock warning switch connector and the body ground, as shown in the illustration and table.
Standard:



Check and replace tvip ecu
Other materials:
Circuit description
The side airbag sensor assy (lh) circuit consists of the diagnosis circuit
and lateral deceleration sensor, etc.
It receives signals from the lateral deceleration sensor, judges whether or not
the srs must be activated,
and detects diagnosis system malfunction.
Dtc b1141/33 is recorded wh ...
Noise occurs
Inspection procedure
1 Check of speaker installation
Check speaker installation condition.
Check that each speaker is securely installed.
Standard: malfunction disappear.
Hint:
the radio is equipped with noise prevention system that does not work against
the regular use of t ...
Oxygen / af sensor heater monitor
Preconditions
The monitor will not run unless:
mil is off
drive pattern
connect the obd ii scan tool to the dlc3 to check monitor status
and preconditions.
Start the engine and allow it to idle for 9 minutes.
Drive the vehicle at 25 mph (40 km ...


