Fault Code 1217

Fault code 1217

Ignition circuit, side airbag for driver

Diagnostic conditions
- Ignition on
- Internal function test on airbag triggering unit

Possible cause of fault
- Upper limit value exceeded (based on the resistance value of the side airbag for the driver and the wiring between the airbag triggering unit and the side airbag for the driver)
- Lower limit value not reached (based on the resistance value of the side airbag for the driver and the wiring between the airbag triggering unit and the side airbag for the driver)
- Short circuit to B+
- Short circuit to ground
- Side airbag for the driver faulty
- Airbag triggering unit faulty

Affected pins
- Airbag triggering unit: Pins 41 and 42
- 3-pin plug connection for side airbag for the driver (under the driver's seat): Pin 1 and pin 2
- 2-pin plug connection for side airbag for the driver (behind the 3- pin plug connection toward the side airbag): Pin 1 and pin 2

Diagnosis/troubleshooting

WARNING:
Danger of injury if vehicle is driven with special tools in place (commercially available tools included).
- Never drive with special tools or commercially available tools attached instead of the airbag units.

NOTE: Never disconnect plugs that are connected directly to airbag modules and belt tensioners because these have been connected at a defined contact pressure in order to prevent a malfunction due to the plug becoming loose during the life of the vehicle. The plug connections (mostly 3-pin) provided for this purpose must be disconnected using an integrated short- circuit bridge.

NOTE:
The wiring harness between the airbag triggering unit and the side airbags in the seats has a number of disconnection points, which must be considered as most likely causes of the fault. The following disconnection points must be checked for correct contacts, possible corrosion or damage with ignition switched off before actually replacing the airbag triggering unit:
- First disconnection point under seat area of driver's and passenger's seat (3-pin disconnection point with short circuit bridge)
- Second disconnection point between 3-pin cut-off connection and the side airbag (2-pin disconnection point with short circuit bridge)
- Third disconnection point directly at side airbag (only inspect this visually (this involves disassembling seat - should only be done in exceptional cases) - never disconnect plug.)

169 Additional airbag tester, Porsche set