Open In Front Airbag Sensor Circuit - Toyota T100 1996 Service Manual

DI−390
DTC
CIRCUIT DESCRIPTION
The front airbag sensor detects the deceleration force in a frontal collision and is located in the front fender
on the left and right sides.
For details of the function of each component, see OPERATION on page RS−2.
DTC 15 is recorded when an open is detected in the front airbag sensor circuit.
NOTICE:
The front airbag sensor connector is equipped with an electrical connection check mechanism for
the purpose of detecting an open in the front airbag sensor (See page RS−2). This mechanism is
constructed so that when the terminals of the front airbag sensor have been connected (when the
connector housing lock is in the locked condition), the connection detection pin on the wire harness
side connects with the terminals for diagnosis use on the sensor side. If the connector is not properly
connected, the diagnosis system may detect only a malfunction code, even through the SRS is func-
tioning normally. When connecting the front airbag sensor connector, make sure it is connected
properly. If DTC 15 is displayed after the front airbag sensor connector has been connected, check
again that it is properly connected.
DTC No.
S Open cirxuit in +S wire harness or −S wire harness of front
airbag sensor.
S Front airbag sensor malfunction.
15
S Malfunction of electrical connection check mechanism of
front airbag sensor
S Center airbag sensor assembly malfunction.
WIRING DIAGRAM
See page DI−373.
INSPECTION PROCEDURE
1 Preparaiton (See step 1 on page DI−396)
2 Check front airbag sensor circuit (Measure resistance between terminals +SR
and +SL of center airbag sensor assembly connector and body ground.) (See
step 2 on page DI−373).
OK
1996 TOYOTA T100 (RM449U)
DIAGNOSTICS
15

Open in Front Airbag Sensor Circuit

DTC Detecting Condition
− SUPPLEMENTAL RESTRAINT SYSTEM
S Front airbag sensor
S Center airbag sensor
S Wire harness
NG Go to step 8.
Trouble Area
DI0XV−02