Calibrating AWS control unit
Later versions of the software may display slightly different text or require a slightly different procedure. The instructions you receive from the tester itself take precedence over this description.
Calibration applies to vehicles as of MY '06 with country equipment (USA, Canada, Mexico).
- Passenger's airbag is triggered differently.
→ If the passenger's seat was removed and re-installed, the AWS control module must be calibrated.
→ If the seat bracket was replaced, the AWS control module must be calibrated.
→ If the AWS control module was replaced, the AWS control module must be calibrated.
- Destruction of the control module.
→ During programming, it is essential to guarantee the power supply for the Porsche System tester. It is essential to connect a battery charger with a current rating of at least 40 A to the vehicle battery.
→ Prior to disconnecting the control module, switch off the ignition and remove the ignition key.
1. Connect battery charger to the vehicle. Move passenger's seat longitudinally until flush with the seat rails and to its lowest position.
2. Connect the Porsche System Tester PIWIS Tester P 9718 to the vehicle and start the System Tester. Switch on ignition. Press >> to continue.
3. Select vehicle type.
4. Switch from the vehicle type to the list of control units by pressing >> .
5. Select AWS control unit and press the >> key.
6. Select the Calibration menu. Press >> .
7. The Tester displays several messages and instructions relating to the individual work steps until the message Test step was completed successfully appears. Press >> .
- The AWS control unit has been taught on the airbag control unit.
- There are no faults in the AWS and airbag control unit.
8. Select the System test menu in the AWS control unit.
9. Follow the instructions on the Tester. Press >> and perform the test using the default sequence.
9.1. Seat empty - the passenger's seat must be empty. The Passenger Airbag Off indicator light in the center console must not come on. To determine the status, press F7 or F8 . Then press >> .
9.2. Child - place the special tool test weight P 9742 on the passenger's seat. The Passenger Airbag Off indicator light in the center console must come on. To determine the status, press F7 or F8 . Then press >> .
9.3. Adult - get an assistant, for example, to sit on the passenger's seat. The Passenger Airbag Off indicator light in the center console must not come on. To determine the status, press F7 or F8 . Then press >> .
9.4. Seat jammed - the passenger's seat must be empty. The seat must also be relieved of any pressure, e. g. by lifting the seat up with your hand. The Passenger Airbag Off indicator light in the center console must come on. In addition to the Airbag Off indicator light, a message is displayed in the instrument cluster: Check passenger seat adjustment . To determine the status, press F7 or F8 . Then press >> .
10. To check the system, select the Actual values menu under the AWS control unit. Then press >> .
10.1. Select the Weight group (0-4) and Gross weight calibrated options.
10.1.1. If there is no weight on the passenger's seat, compare values (see table below) using the PIWIS Tester. The Passenger Airbag Off indicator light in the center console must not come on.
10.1.2. Place the special tool test weight P 9742 on the passenger's seat. The Passenger Airbag Off indicator light in the center console must come on. Compare values (see table below) using the PIWIS Tester.
10.1.3. Get an assistant with a body weight of more than 55 kg, for example, to sit on the passenger's seat. The Passenger Airbag Off indicator light in the center console must not come on. Compare values (see table below) using the PIWIS Tester.
| Test state | Weight group (0-4) | Gross weight calibrated (seat in calibration position) |
| No weight on the passenger's seat. | 0 | → Control value: 0 kg +/-1 kg |
| Special tool test weight P 9742 on passenger's seat | 1 | → Control value: 6.7 kg +/-1 kg |
| Get a person weighing > 55 kg at least to sit on the passenger's seat. | 2, 3 or 4 | → Control value for person's weight: > 55 kg ; person's weight +/- 25 % |
11. Read out and erase the fault memories in the Airbag and AWS control unit, perform a test drive and then read out the fault memories again. If faults are found, determine the cause using the PIWIS Tester and correct the faults.