Mitsubishi Evolution X. Manual - part 140
SYSTEM CONSTRUCTION
TSB Revision
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-15
FRONT IMPACT SENSOR
M2521005000442
• The front impact sensor is installed on the front end upper in
the engine room, and the analogue G-sensor is housed in
the front impact sensor.
• The front impact sensor transmits the coded acceleration
data to SRS-ECU. Based on the data, SRS-ECU deter-
mines the deployment stage of the front air bag, then ener-
gizes appropriate squib.
• SRS-ECU performs the diagnostics of the front impact sen-
sor internal components. If a malfunction occurs, it sets the
diagnostic trouble code.
SIDE IMPACT SENSOR
M2521006000478
• The side impact sensors are installed to the lower part of
the center pillars on both sides and to the quarter panels on
both sides, and the analogue G-sensor is housed in the
side impact sensor.
• The side impact sensor transmits the coded acceleration
data to SRS-ECU. Based on the data, SRS-ECU deter-
mines the deployment of the side-airbags and curtain air
bags, then energizes appropriate squib(s).
• SRS-ECU performs the diagnostics of the side impact sen-
sor internal components. If a malfunction occurs, it sets the
diagnostic trouble code.
SEAT SLIDE SENSOR
M2521001400114
• The seat slide sensor is attached to the slide
adjuster on the driver's seat side, and the seat is
moved forward/backward by seat sliding. When
the seat is slid forward, the shield plate covers
the sensor, and the sensor determines that the
seat slide position is set forward.
• The seat slide sensor outputs the current by
switching high output current and low output cur-
rent from the seat slide position as shown in the
figure. Based on the output current, SRS-ECU
determines the deployment stage of the front air
bag, and then energizes the squib.
AC608583
Front impact sensor
AB
AC605684
Center pillar
AD
Side impact sensor
AC709213
A
Seat slide
sensor
Shield
plate
View A
AB