Toyota Corolla (E120): Inspection procedure
1 Check connector
- Disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.
- check the connection of the combination meter connector and the
airbag sensor assy center connectors.
Ok: the connectors are connected.


2 Check combination meter assy

- Disconnect the connector from the combination meter.
- connect the negative (–) terminal cable to the battery, and wait at least for 2 seconds.

- Turn the ignition switch to on, and wait at least for 6 seconds.
- measure the voltage between sw and body ground.
Ok: voltage: above 8 v


3 Check instrument panel wire(airbag sensor assy center–combination meter assy)

- Turn the ignition switch to lock.
- disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.
- disconnect the connector from the airbag sensor assy center.
- measure the resistance between la and body ground.
Ok: resistance: 1mΩ or higher


Replace air bag sensor assy center
4 Check instrument panel wire(airbag sensor assy center–combination meter assy)

- For the connector (on the airbag sensor assy center side)
between the combination meter and the airbag sensor
assy center, measure the resistance between sw and
la.
Ok: resistance: below 1 Ω


Replace air bag sensor assy center
Srs warning light circuit malfunction (does not light
up, when ignition switch is turned to on)
Other materials:
If the engine will not start
If the engine will not start even though correct starting procedures are being
followed , consider each of the following points:
The engine will not start even though the starter motor operates normally.
One of the following may be the cause of the problem:
● There may not be sufficient f ...
Data list/active test
1. Data list
Hint:
using the data list displayed by the hand–held tester or the obd ii scan tool,
you can read the value of
the switches, sensors, actuators and so on without parts removal. Reading the
data list as a first step
of troubleshooting is one method to shorten diagnostic time.
...
Overhaul
Notice: when installing, coat the parts indicated by the arrow with
power steering fluid or molybdenum disulfide lithium base grease.
1. Precaution
2. Disconnect battery negative terminal
3. Inspect center front wheel
4. Remove horn button assy
5. Remove steering wheel assy
sst 09950–50013 ...

