GL 320 BLUETEC (164.825) V6-3.0L DSL Turbo (642.820) (2009)
/v6-3.0l_dsl_turbo_(642.820)/Page-2454001.png)
Seat Belt Tensioner: Description and Operation
GF91.40-P-4020GM Front Reversible Emergency Tensioning Retractor, Component Description
Component Identification
Location
The reversible emergency tensioning retractors are located in the respective B-pillar.
Task
The reversible emergency tensioning retractors perform the following tasks:
^
Reading in of signals
^
Evaluation of input factors
^
Actuation of components
Reading in of signals
The input factors are read in with the following connections:
^
Direct line
^
Engine compartment CAN
Direct line
The following signals are read in via a direct line:
-
Circuit 30
-
Circuit 31
Engine compartment CAN
The following signals are read in via the engine compartment CAN:
-
Information on vehicle dynamics situation from ESP control unit (N47-5)
-
Steering angle from steering column tube module (N80)
-
Status of front seat belt buckles from restraint systems control unit (N2/7)
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
Components are actuated with the following lines:
^
Direct line
^
Engine compartment CAN
Direct line
The internal actuators for seat belt tensioning are activated via a direct line.
Engine compartment CAN
