Rear-End Collision - Function - GF91.60-P-2004PP

MODELS 203.0 /2 /7 up to 23.4.04 

Chronological behavior of emergency tensioning retractor if a rear-end collision occurs 

Fig 1: Identifying Rear-End Collision Function - Models 203.0 /2 /7 Up To 23.4.04

Rear end collision 

In the event of a rear end collision the restraint systems control unit (N2/7) registers rapid acceleration in the direction of travel.

If the first triggering threshold is exceeded, the restraint systems control unit (N2/7) sends a triggering pulse to the:

• Driver ETR squib (R12/1)
• Passenger ETR squib (R12/2)

However, this only occurs if the respective seat belt buckle has been fastened. If the second triggering threshold is exceeded, the restraint systems control unit (N2/7) sends additional triggering pulses to the:

• Left rear ETR squib (R12/6)
• Right rear ETR squib (R12/7)

The emergency tensioning retractors (ETRs) in the rear are also triggered if the respective buckles are not fastened.