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

Input Signals




This menu item enables switch inputs of the alarm system to be read in by the Porsche System Tester 2. This allows the function of the switch inputs to be assessed very quickly.

The following switch inputs can be read in:
- Driver's side secured
- Passenger's side secured
- Driver's side locked
- Passenger's side locked
- Door contact, driver's side
- Door contact, passenger's side
- Door lock barrel (open)
- Door lock barrel (closed)
- Button, central locking system (open)
- Button, central locking system (closed)
- Terminal 86 S
- Terminal 15
- Immobilizer deactivated
- Crash input
- Luggage compartment, front
- Luggage compartment, rear
- Convertible top/sunroof
- Oddments tray
- Convertible top compartment cover
- External input 1
- External input 2
- Radio contact
- Alarm horn
- Radio transmitter: Button 1
- Radio transmitter: Button 2