Lancer LS L4-2.0L SOHC (2002)
Impact Sensor: Description and Operation
Side Impact Sensor
SIDE IMPACT SENSOR
CAUTION: Never disassemble the side impact sensor.
The side impact sensors are installed in the bottom sections of the right and left center pillars. Each sensor incorporates an analog G-sensor, micro
processor, and other electrical parts. The micro processor always monitors the analog G-sensor's output. If the micro processor determines that
deployment of the side air bag is required, it sends a signal to the SRS-ECU, requesting ignition of the air bag inflator.
The micro processor also performs diagnosis of the side impact sensor components. If any fault is detected, the micro processor sends the corresponding
diagnostic trouble code to the SRS-ECU.