Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Extended Identification



Extended Identification

Additional data present in the control unit can be read out using this menu item.
1. Connect and start the Porsche System Tester II No. 9588 and switch on the ignition
2. Select 'Cayenne' in the Vehicle type menu and confirm with the >> key.
3. Select 'PCM2' in the Control units menu and confirm with the >> key.
4. Select 'Telephone/telematics' in the Cayenne PCM2 function selection and confirm with the >> key.
5. Select "Identification" in the Cayenne telephone/telematics function selection and confirm with the key. >>
6. "Diagnosis software number; PCM2 parts number" appears on the display.
7. Confirm PCM2 GW extended identification with the F8 key or the >> key.

The following data can be read out:
- CRIN (Car Radio Identification Number)
- Date of ECU Manufacturing (YYYY;MM;DD)
- Repair Shop Code or Tester Serial Number
- System Supplier ECU Hardware Number (cw, year)
- System Supplier ECU Hardware Version Number
- System Supplier ECU Software Number (cw, year)
- System Supplier ECU Software Version Number
- Vehicle Manufacturer Diagnostic Index
- Vehicle Manufacturer ECU Hardware Number
- VIN (Vehicle Identification Number)