Prizm L4-108 1.8L DOHC VIN 8 MFI (1998)
Impact Sensor: Description and Operation
The inflatable restraint side impact sensors (SIS) are crash-sensing devices used in the detection of side impact collisions. The inflatable restraint side
impact sensor (LH) is located in the LH B-pillar. The inflatable restraint side impact sensor (RH) is located in the RH B-pillar. The inflatable restraint
side impact sensors are used to perform the following functions:
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Side Impact Crash Detection
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Each SIS monitors vehicle velocity changes to detect side impact crashes that are severe enough to warrant deployment.
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Side Air Bag System Status Communication - The inflatable restraint sensing and diagnostic module (SDM) monitors a diagnostic line from
each SIS. Both SISs communicate the status of the side impact air bag system to the SDM over these diagnostic lines.
The SIS connects to the air bag wiring harness using a 4-way connector.
The SIS receives power via the SDM whenever the ignition switch is in the RUN or START positions.
The inflatable restraint side impact sensors (SIS) are crash-sensing devices used in the detection of side impact collisions. The inflatable restraint side
impact sensor (LH) is located in the LH B-pillar. The inflatable restraint side impact sensor (RH) is located in the RH B-pillar. The inflatable restraint
side impact sensors are used to perform the following functions:
^
Side Impact Crash Detection
-
Each SIS monitors vehicle velocity changes to detect side impact crashes that are severe enough to warrant deployment.
^
Side Air Bag System Status Communication - The inflatable restraint sensing and diagnostic module (SDM) monitors a diagnostic line from
each SIS. Both SISs communicate the status of the side impact air bag system to the SDM over these diagnostic lines.
The SIS connects to the air bag wiring harness using a 4-way connector.
The SIS receives power via the SDM whenever the ignition switch is in the RUN or START positions.
