Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Supplemental restraint system / Front airbag sensor (lh)
malfunction / Inspection procedure
Toyota Corolla (E120): Inspection procedure
1 Check front airbag sensor (lh) circuit (to b+)(airbag sensor assy center – airbag sensor front lh)
- 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 airbag sensor front lh.
- connect the negative (–) terminal cable to the battery, and wait at least for 2 seconds.
- ) turn the ignition switch to on.
- for the connector (on the airbag sensor assy center side)
between the airbag sensor front lh and the airbag sensor
assy center, measure the voltage between body ground
and each of +sl and –sl.
Ok: voltage: below 1 v
2 Check front airbag sensor(lh) circuit(to ground)(airbag sensor assy center – airbag sensor front lh)
- Turn the ignition switch to lock.
- disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.
- for the connector (on the airbag sensor assy center side)
between the airbag sensor front lh and the airbag sensor
assy center, measure the resistance between body
ground and each of +sl and –sl.
Ok: resistance: 1 mΩ or higher
3 Check front airbag sensor (lh) circuit(open)(airbag sensor assy center – airbag sensor front lh)
- Using a service wire, connect +sl and –sl of the connector (on the airbag sensor front lh side) between the airbag sensor assy center and the airbag sensor front lh.
- for the connector (on the airbag sensor assy center side)
between the airbag sensor front lh and the airbag sensor
assy center, measure the resistance between +sl and
–sl.
Ok: resistance: below 1 Ω
4 Inspect air bag sensor front lh
- For the connector of the airbag sensor front lh, measure
the resistance between +sl and –sl.
Ok: resistance: 820 Ω
5 Check air bag sensor assy center
Sst 09843–18040
- Disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.
- connect the airbag sensor front lh connector and airbag sensor assy center connector.
- 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 20 seconds.
- clear the dtc stored in memory .
- turn the ignition switch to lock, and wait at least for 20 seconds.
- turn the ignition switch to on, and wait at least for 20 seconds.
- check the dtc .
Ok: dtc b1158/b1159/16 is not output.
Hint
: codes other than code b1158/b1159/16 may be output at this time, but they are not relevant to this check.
Use simulation method to check
6 Check engine room main wire harness (to b+)(conector – airbag sensor front lh)
- Turn the ignition switch to lock.
- disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.
- disconnect the connector between the engine room main wire and the instrument panel wire.
- connect the negative (–) terminal to the battery, and wait at least for 2 seconds.
- turn the ignition switch to on.
- for the engine room main wire connector (on the airbag
sensor assy center side) between the airbag sensor assy
center and the airbag sensor front lh, measure the voltage
between body ground and each of +sl and –sl.
Ok: voltage: below 1 v
Repair or replace instrument panel wire
7 Check engine room main wire harness (to ground)(connector – airbag sensor front lh)
- Disconnect the connectors between the engine room main wire and the instrument panel wire.
- for the engine room main wire connector (on the airbag
sensor assy center side) between the airbag sensor assy
center and the airbag sensor front lh, measure the resistance
between body ground and each of +sl and –sl.
Ok: resistance: 1 mw or higher
Repair or replace instrument panel wire
8 Check engine room main wire harness(open)(connector – airbag sensor front lh)
- Disconnect the connectors between the engine room main wire and the instrument panel wire.
- using a service wire, connect +sl and –sl of the engine room main wire connector (on the airbag sensor front lh side) between the airbag sensor assy center and the airbag sensor front lh.
- for the engine room main wire connector (on the airbag
sensor assy center side) between the airbag sensor assy
center and the airbag sensor front lh, measure the resistance
between +sl and –sl.
Ok: resistance: below 1 Ω
Repair or replace instrument panel wire
Other materials:
Connecting a Bluetooth® device
Up to 5 Bluetooth® devices (Phones (HFP) and audio players (AVP)) can be registered.
If more than 1 Bluetooth® device has been registered, select which device to
connect to.
1 Press the “SETUP” button.
2 Select “Bluetooth*”.
*: Bluetooth is a registered trademark of Bluetooth SIG, In ...
Adding the washer fluid
Add washer fluid in the following
situations:
A washer does not work.
The warning message
appears on the multi-information
display.
WARNING
■When adding washer fluid
Do not add washer fluid when the
engine is hot or running as
washer fluid contains alcohol and
may catch fire if spilled on t ...
Seat belts
Make sure that all occupants
are wearing their seat
belts before driving the
vehicle.
WARNING
Observe the following precautions
to reduce the risk of injury in the
event of sudden braking, sudden
swerving or an accident.
Failure to do so may cause death
or serious injury.
■Wearing a seat belt
E ...