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)

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Input Signals




This menu item enables input signals of the alarm system to be read out by the Porsche System Tester 2. This allows the function of the input signals to be assessed very quickly.

The following input signals can be read out:
- Radio contact
- Input 1
- Signal, terminal 15
- Alarm horn
- Driver's side secured
- Passenger's side secured
- Driver's side locked
- Passenger's side locked
- Doors, driver's side
- Doors, passenger's side
- Door lock barrel
- Central locking button
- Signal, terminal 86 S
- Immobilizer
- Signal from airbag
- Luggage compartment, front
- Luggage compartment, rear
- Convertible top/sunroof
- Oddments tray
- Convertible top compartment lid (microswitch omitted as from Y-range)
- Radio transmitter: Button 1
- Radio transmitter: Button 2