System Overview: Signals
The table below summarizes the input signals to and output signals from the supplemental restraint system module (SRS). The signal types are divided into directly connected signals and CAN communication. The illustration below (Fig 1) displays the same information with the Volvo component designations.
| Input signals |
Output signals |
| Directly connected: |
Directly connected: |
- Side impact sensor left B-post (7/115)
- Side impact sensor right B-post (7/116)
- Side impact sensor left-hand door (7/208)
- Side impact sensor right-hand door (7/209)
- Frontal collision sensor left front (7/179)
- Frontal collision sensor right front (7/178)
- Seat belt buckle passenger (3/94)
- Seat belt buckle driver (3/93)
- Switch on/off, front passenger airbag (3/157) (not USA/CDN)
- Seat position sensor passenger (3/256) (USA/CDN only)
- Seat position sensor driver (3/255) (USA/CDN only).
|
- Central electronic module (CEM) (4/56), collision output signal
- Phone Module (PHM) (16/60), collision output signal
- Belt tensioner passenger front (8/34)
- Seat belt tensioner driver (8/33)
- Seat belt tensioner left rear (8/55)
- Seat belt tensioner right rear (8/56)
- Adaptive steering column (8/99) (USA/CDN only)
- Airbag passenger front stage 1 (8/31)
- Airbag passenger front stage 2 (8/32)
- Airbag driver front stage 1 (8/30)
- Airbag driver front stage 2 (8/61)
- Side impact protection (SIPS) bag left front (8/51)
- Side impact protection (SIPS) bag right front (8/52)
- Door installed inflatable curtain left (8/66)
- Door installed inflatable curtain right (8/67)
- Adaptive seatbelt force limiter driver (8/128) (USA/CDN only)
- Adaptive seatbelt force limiter passenger front (8/129) (USA/CDN only).
- Rollover bar cassette left (8/57)
- Rollover bar cassette right (8/58)
|
| Via local CAN communication (USA/CDN only): |
Via local CAN communication (USA/CDN only): |
- Occupant weight sensor (OWS) (7/93).
|
- Occupant weight sensor (OWS) (7/93).
|
| Via Controller Area Network (CAN) communication: |
Via Controller Area Network (CAN) communication: |
- Central electronic module (CEM) (4/56)
- Driver information module (DIM) (5/1).
|
- Central electronic module (CEM) (4/56)
- Driver information module (DIM) (5/1).
- Phone module (PHM) (16/60).
|
Courtesy of VOLVO CARS CORPORATION