Rear-End Collision - Function - GF91.60-P-2004PMA
MODELS 203.0 /2 as of 1.6.04, 203.7 as of 24.4.04 with CODE (494a) USA version
Chronological behavior of emergency tensioning retractor if a rear-end collision occurs
Rear end collision
The restraint systems control unit (N2/7) registers high vehicle acceleration if an impact occurs. The restraint systems control unit (N2/7) relays the triggering pulse to the following components:
- Driver ETR squib (R12/1)
- Front passenger ETR squib (R12/2) (depending on seat occupancy)
- Left rear ETR squib (R12/6)
- Right rear ETR squib (R12/7)
The WSS control unit (Weight Sensing System) (N2/13) senses the occupancy status of the front passenger seat with the aid of the pressure sensor (B48/4). In order to detect a child seat the seat belt tension sensor (B48/3) is read in by the WSS control unit (Weight Sensing System) (N2/13) and the relevant message is transmitted to the restraint systems control unit (N2/7) via the Controller Area Network Bus Class B (interior) (CAN-B). A front passenger seat that is unoccupied or occupied by a child seat is indicated by the illumination of the automatic child seat recognition airbag OFF indicator lamp (N72/1e1) in the upper control panel control unit (N72/1). The front passenger ETR squib (R12/2) is not triggered.
| Front seat belt tensioner, location/task/design/ function | GF91.40-P-4000PP | ||
| Rear Emergency Tensioning Retractors, location/task/design/function | GF91.40-P-4001PP | ||
| Supplemental restraint systems control unit, location/task/design | GF91.60-P-4018PM | ||
| SRS airbag malfunction indicator lamp, location/task | GF91.60-P-4011PM | ||
| Airbag OFF indicator lamp, location/task | GF91.60-P-4012PMA | ||
| Seat Belt Buckle Switch, location/task | GF91.60-P-4013PP | ||
| WSS control unit location/task | GF91.60-P-4105PM | ||
| Pressure sensor, location/task | GF91.60-P-4106PM | ||
| Seat belt tension sensor location/task | GF91.60-P-4107PM |