AWS
AWSDiagnosis/troubleshooting
NOTE: The fault memory Info key [F8] on the 9718 PIWIS tester can be used to access the 'extended fault memory'. The following information can be displayed:
Fault type
The following fault types are possible:
- no display
- above upper limit value
- below lower limit value
- mechanical fault
- no signal/communication
- no or incorrect basic setting/adaptation
- short circuit to B+
- short circuit to ground
- implausible signal
- open circuit/short circuit to ground
- open circuit/short circuit to B+
- open circuit
- electrical fault in electric circuit
- please read out fault memory
- faulty
- cannot be checked now
Fault status
The following status types are possible:
- present
- not present
This information should be saved using the Save key [F4] and printed out.
NOTE:
Visual inspection: During troubleshooting, please check first that the affected pins on the plug connection of the AWS control unit are neither damaged nor corroded. The wiring and connectors of the affected components must also be checked for external damage and correct contacts. Repair damaged or corroded pins if possible, otherwise replace affected pins. Repair or replace damaged wiring in accordance with Porsche guidelines.
NOTE:
Battery voltage: A battery positive voltage of between 11.4 and 14.5 V is required for troubleshooting. This must be checked and ensured if necessary. Supply-side voltages to components and fuses must be guaranteed on the vehicle electrical system.