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:
Check short circuit
If the wire harness is ground shorted as shown in fig. 5,
Locate the section by conducting a resistance check with
the body ground in step (b).
Check the resistance with the body ground.
Disconnect connectors a and c and measure the
resistance between terminals 1 and 2 ...
Manual air conditioning system
Air conditioning controls
The display and button positions will differ depending on the type of
the system.
Fan speed control switch
Temperature control switch
"MAX A/C" switch
"A/C" switch
Outside air mode switch
Recirculated air mode switch
Airflow mode control switch
Rear window defogge ...
Vehicle control system
Ignition or starter switch assy
Replacement
1. Remove steering column cover
2. Remove ignition or starter switch assy
Disconnect the ignition switch connector and unlock
warning switch connector.
remove the 2 clamps.
remove the 2 screws and ignition switch.
Inspectio ...


