Side Impact Sensor (SIS)

Description and Operation

Description

• The side impact sensor (SIS) system consists of two pressure-type side impact sensors. The pressure sensor (P-SIS) is installed in each front door module center (left and right), two G-SIS are installed on each center pillar (left and right), and two rear SIS are installed in the rear pillar (left and right).
• The pressure-type side impact sensor is also called P-SIS because it detects the pressure from a collision at its installed location.
• The side impact sensor is also called A-SIS because it detects acceleration.
• The SRSCM determines airbag deployment and deployment timing through the SIS collision signal when a collision occurs.

Components and Component Location

Components

Repair Procedures

Replacement

1. 1
   Disconnect the negative battery cable and wait at least three minutes before starting work.
2. 2
   Remove the front door trim panel. (Refer to Body - "Front Door Trim")
3. 3
   Disconnect the pressure side impact sensor connector (A).
4. 4
   Separate the front pressure side impact sensor (B) by turning it 90° counterclockwise.

   Tightening torque: 7.8–11.7 N·m

   

5. 5
   Install in the reverse order of removal.
6. 6
   Disconnect the negative battery cable and wait at least three minutes before starting work.
7. 7
   Remove the center pillar trim. (Refer to Body - Center Pillar Trim)
8. 8
   Disconnect the side impact sensor connector (A).
9. 9
   Remove the side impact sensor (B) after loosening the mounting bolt.

   Tightening torque: 7.8–11.7 N·m

   

10. 10
    Install in the reverse order of removal.