Supplemental Restraint System Control Unit, Component Description - GF91.60-P-4080GW
Model 463 (except 463.342)
as of model year 2013 up to model year 2019
Model 463.342
Shown on model 463.23
Location
The Supplemental Restraint System control unit is located on the transmission tunnel.
Tasks
The Supplemental Restraint System control unit has the following tasks:
- Reading in of signals
- Evaluation of input factors
- Actuation of components
- Transmitting signals
Model 463
as of model year 2015 up to model year 2019
with code ZU8 (National version for USA)
An accident data recorder is integrated in the Supplemental Restraint System control unit, which records relevant data before, during and after an accident. The data stored can be used to trace back the course of the accident.
Reading in of signals
The input factors are read in via the following connections:
- Direct line
- Seat occupied recognition LIN (LIN E2)
- Chassis CAN 1 (CAN E1) Direct line
The signals from the following components are read via direct lines:
- Left frontal acceleration sensor (B48/1)
- Right frontal acceleration sensor (B48/2)
- Left B-pillar body acceleration sensor (B48/15) (model 463.23/27/34)
- Right B-pillar body acceleration sensor (B48/16) (model 463.23/27/34)
- Left front door pressure sensor (B48/17) (as of 01.09.2014 except code ZS8 (Protection class VR7/glass area VR9))
- Right front door pressure sensor (B48/18) (as of 01.09.2014 except code ZS8 (Protection class VR7/glass area VR9))
- Driver belt buckle restraint system switch (S68/3)
- Front passenger belt buckle restraint system switch (S68/4)
Seat occupied recognition LIN
The status of the seat occupied recognition is recorded by the front passenger seat occupied recognition and ACSR [AKSE] (B48) and sent via seat occupancy LIN to the supplemental restraint system control unit.
Chassis CAN 1
The signals are read in by the supplemental restraint system control unit via chassis CAN 1.
The functions that use these signals are described in the individual function descriptions (see block diagram or function schematic).
Evaluation of input factors
The input factors that have been read in are evaluated by the integrated microprocessor and the relevant components are then actuated.
Actuation of components
The following components are actuated via direct lines:
- Pyrofuse (F32/3f150)
- Driver emergency tensioning retractor squib (R12/1)
- Front passenger emergency tensioning retractor squib (R12/2)
- Front passenger airbag squib 1 (R12/4)
- Left 2nd seat row emergency tensioning retractor squib (R12/6)
- Right 2nd seat row emergency tensioning retractor squib (R12/7)
- Driver side airbag squib (R12/9) (as of 01.09.2014, except model 463.342)
- Front passenger side airbag squib (R12/10) (as of 01.09.2014, except model 463.342)
- Driver airbag squib 1 (R12/13)
- Driver airbag squib 2 (R12/14)
- Left windowbag squib (R12/22) (model 463.23/27/34 except model 463.342)
- Right windowbag squib (R12/23) (model 463.23/27/34 except model 463.342)
- Driver pelvis airbag squib (R12/41) (as of 01.09.2014, except model 463.342)
- Front passenger pelvis airbag squib (R12/42) (as of 01.09.2014, except model 463.342)
- Inerting system squib (R12/70) (with code Y65 (Alternative refrigerant) and gasoline engine)
- Analog crash output to CDI control unit (N3/9) (diesel engine) or ME-SFI [ME] control unit (N3/10) (gasoline engine)
- Analog crash output to emergency call system control unit (N123/4) (with code ZU8 (USA national version))
- Driver NECK-PRO head restraint solenoid (Y24/12)
- Front passenger NECK-PRO head restraint solenoid (Y24/13)
Transmitting signals
The signals are sent by the supplemental restraint system control unit via chassis CAN 1.
The functions that use these signals are described in the individual function descriptions (see block diagram or function schematic).
| Wiring diagram for Supplemental Restraint System control unit | Sheet 1 | PE91.60-P-2106-97ZGA | |
| Sheet 2 | PE91.60-P-2106-97ZGB |