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 displays the same information with the Volvo component designations.
| Input signals |
Output signals |
| Directly connected: |
Directly connected: |
- Side impact sensor left C-post (7/108)
- Side impact sensor right C-post (7/109)
- Side impact sensor left B-post (7/115)
- Side impact sensor right B-post (7/116)
- Side impact sensor (pressure sensor) left front door (7/208) (only USA/CAN)
- Side impact sensor (pressure sensor) right front door (7/209) (only USA/CAN)
- Front impact sensor left front (7/179)
- Front impact sensor right front (7/178)
- Seat belt buckle driver (3/93)
- Seat belt buckle passenger (3/94)
- Belt buckle, rear left (certain markets only) (3/217)
- Belt buckle, rear centre (certain markets only) (3/218)
- Belt buckle, rear right (certain markets only) (3/219)
- Seatbelt retractor sensor driver (7/194) (only USA/CAN)
- Seatbelt retractor sensor passenger (7/195) (only USA/CAN)
- Switch, front passenger airbag (3/157) (not USA/CAN)
- Front passenger seat position sensor (3/256) (USA/CAN only)
- Driver's seat position sensor (3/255) (USA/CAN only)
|
- Central electronic module (CEM) (4/56), collision output signal
- Phone Module (PHM) (16/60), collision output signal
- Seat belt tensioner driver (8/33)
- Belt tensioner passenger front (8/34)
- Belt tensioner, waist, driver (8/92) (only certain markets)
- Belt tensioner waist passenger (8/93) (only certain markets)
- Seat belt tensioner left rear (8/55)
- Belt tensioner center rear (8/62)
- Seat belt tensioner right rear (8/56)
- Adaptive steering column (8/99) (USA/CAN only)
- Front passenger airbag (8/124)
- Driver airbag (8/123)
- Side impact protection (SIPS) bag left front (8/51)
- Side impact protection (SIPS) bag right front (8/52)
- Left inflatable curtain (8/66)
- Right inflatable curtain (8/67)
- Adaptive seatbelt force limiter driver (8/128) (only USA/CAN).
- Adaptive seatbelt force limiter passenger front (8/129) (only USA/CAN)
- Warning lamp, front passenger airbag (PAD) (10/22)
- Warning light activated airbag passenger (PAE) (10/22) (2008-) (not USA/CAN)
|
| Via internal CAN communication: |
Via internal CAN communication: |
- Occupant weight sensor (OWS) (7/93) (USA/CAN only)
|
- Occupant weight sensor (OWS) (7/93) (USA/CAN only)
|
| 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