Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Supplemental restraint system / Seat belt buckle switch (lh)
malfunction / Inspection procedure
Toyota Corolla (E120): Inspection procedure
1 Check wire harness(airbag sensor assy center – front seat inner belt assy 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 front seat inner belt assy (lh).
- for the connector (on the airbag sensor assy center side)
between the airbag sensor assy center and the front seat
inner belt assy (lh), measure the resistance between
lbe+ and body ground.
Ok: resistance: 1 mw or higher
2 Check wire harness(airbag sensor assy center – front seat inner belt assy 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 assy center and the front seat
inner belt assy (lh), measure the voltage between lbe+
and body ground.
Ok: voltage: below 1 v
3 Check front seat inner belt assy lh
- Turn the ignition switch to lock.
- disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.
- connect the connector of the front seat inner belt assy (lh).
- unlock the seat belt for the front driver’s seat.
- for the connector (on the airbag sensor assy center side),
measure the resistance between lbe+ and body ground.
Ok: resistance: 1.0 Kw – 1.6 KΩ
4 Check front seat inner belt assy lh
- Lock the seat belt for the front driver’s seat.
- for the connector (on the airbag sensor assy center side),
measure the resistance between lbe+ and body ground.
Ok: resistance: 100 w – 500 Ω
5 Check air bag sensor assy center
Sst 09843–18040
- Connect the connector to the airbag sensor assy center.
- 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 b0126/b0127/27 is not output.
Hint
: codes other than code b0126/b0127/27 may be output at this time, but they are not relevant to this check.
Use simulation method to check
Other materials:
BSM (Blind Spot Monitor)
The Blind Spot Monitor is a
system that uses rear side
radar sensors installed on
the inner side of the rear
bumper on the left and right
side to assist the driver in
confirming safety when
changing lanes.
WARNING
■Cautions regarding the use of
the system
The driver is solely responsible
for sa ...
Driving assist systems
To help enhance driving safety and performance, the following systems operate
automatically in response to various driving situations. Be aware, however, that
these systems are supplementary and should not be relied upon too heavily when operating
the vehicle.
◆ ABS (Anti-lock Brake Sys ...
Heated steering wheel/seat heaters
Heated steering wheel
Warms up the grip of the
steering wheel
Seat heaters
Warm up the seat upholstery
WARNING
To prevent minor burn injuries
Care should be taken if anyone in
the following categories comes in
contact with the steering wheel or
seats when the heater is on:
Babies, small chil ...