System Description

System Description

The airbag system consists of the following components: triggering unit, contact unit, driver's airbag unit, passenger's airbag unit, child restraint system plug connection, belt buckle for driver, belt buckle for passenger and the warning light. A system self-test is performed after the ignition is switched on. The warning light is switched on during the self-test. If no faults are stored in the fault memory, the warning light goes out after approx. 3 seconds.
Up to max. 10 faults can be stored. A start and stop fault clock is kept for each fault.

The triggering unit has the following functions:
- Crash recognition and triggering time calculation
- Triggering the airbag system
- Recording the event data
- Self-test and permanent monitoring of the airbag system
- Fault storage
- Fault display
- Fault output
- System readiness display

The triggering unit need not be replaced until after the third time the airbag is triggered or if the fault memory can no longer be cleared.

If the triggering unit is replaced, the data record for the appropriate vehicle must be loaded with the Porsche System Tester 2 and the triggering unit must be locked.
The warning light flashes before locking. The warning light goes out after locking was performed successfully (if no fault is present).