Component description for front reversible emergency tensioning retractor - GF91.40-P-4020LE

MODEL 221.0 /1 as of model year 2009 /YoM 08 

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 via the following connections:

• Direct line 
• Chassis CAN (CAN E) 

Direct line 

The following signals are read in via a direct line:

• Terminal 30
• Circuit 31

Chassis CAN 

The following signal is read in via chassis CAN by the ESP control unit (N47-5) (without model 221.095/195) or by the regenerative braking system control unit (N30/6) (on model 221.095/195)

• Request for reversible emergency tensioning retraction

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 components are actuated directly in the reversible emergency tensioning retractor.

Wiring diagram, reversible emergency tensioning retractor

PE91.40-P-2200-97SAA