911 GT2 (996) F6-3.6L Turbo (2003)
The CD player is part of the PCM2. It is used to update the navigation system.
Input Signals
The following queries can be run using this menu item:
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3dB lowering
NOTE: Deactivate the 'automatic traffic announcement' before performing the diagnosis on the PCM2. If this is not done, the diagnosis will abort.
Menu Item
Function
-
3dB lowering
Under this menu item, it is possible to check the electrical and optical MOST during troubleshooting.
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Connect and start the Porsche System Tester II No. 9588 and switch on the ignition.
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Select '911(996)' in the vehicle type menu and confirm with the ->| key.
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Select 'PCM' in the control modules selection and confirm with the >> key.
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Select 'PCM2/CDR23' in the control modules selection and confirm with the >> key.
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Select 'PCM2-GW' in the PCM2 function selection and confirm with the >> key.
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Select the Input signals menu item and press the >> key.
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Select the "3dB lowering" menu item using the > key and press the >> key.
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Read out values from the display field.
Voice Control System (VOCS)
The VOCS is designed as a module box which can be pushed into the PCM2 (optional). After inserting, an electronic connector is automatically opened
and the module is integrated into the MOST ring.
Control Unit PCM2 (Head Unit)
The PCM2 control unit (head unit) includes the following components:
Internal:
PCM2 Gateway
PPM2 Man Machine Interface (MMI)
Internal amplifier (optional, depending on the equipment)
Tuner
Single CD
Navigation (optional/rack)
VOCS (voice control system) (optional/insertion)
Wake-up and diagnosis distribution line control
Controller Area Network (CAN) Comfort
MOST switch
External:
External amplifier (optional, Harman or BOSE)
CD changer (CDC), (optional)
Telephone/telematics (optional)
The PCM2 consists of at least two but a maximum of four MOST nodes, (Gateway, MMI and Navigation and VOCS (optional)), which communicate
with each other electronically via the MOST. Data outside the PCM2 is transferred via the MOST.
Telephone/Telematics
The telephone/telematics is available as an optional feature and is linked to the PCM2 via the optical waveguide.
Tuner
The tuner forms part of the PCM2 and is installed on the mainboard.
Unlock Counter
Interruptions occur in the system if perfect communication is no longer possible. If the relevant threshold values are exceeded, an entry is recorded in the
appropriate control module and the unlock counter is incremented.
External Amplifier