Checking Airbag Warning Light

WARNING: This page is about a different car, the 2010 Porsche Cayenne, 2009 Porsche Cayenne, and 2008 Porsche Cayenne. However, it is still accessible from the selected car via links, so may be relevant.

Function test of airbag warning light in instrument cluster:
1. 1.1. Switch on ignition.
  Information
  - The airbag warning light must light up for approx. 3 seconds. If the warning light does not light up, check the light unit and power supply.
Function test of airbag warning light in centre console:
WARNING:
Danger of serious or fatal injuries from passenger's airbag!
- If the PASSENGER AIRBAG warning light does not light up when the ignition is switched on, there may be a fault in the system.
→ Read out fault memory and correct the malfunction.
1. 2.1. Use the vehicle key to deactivate the passenger's airbag at the key-operated switch (cover of right fuse carrier).
2. 2.2. Switch position ON - airbag active.
3. 2.3. Switch position OFF - airbag deactivated.
4. 2.4. Switch on the ignition; the warning light must light up continuously.
  
  Fig 1: Identifying Key-Operated Switch
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.