911 Targa (996) F6-3.6L (2004)
The MOST switch is part of the PCM2. It keeps the electrical MOST closed if no other MOST control module is optically connected to the MOST. The
MOST switch is opened when a light signal is received from the connected MOST control modules.
The following settings can be coded:
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MOST switch open.
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MOST switch closed.
NOTE:
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When the PCM2 is replaced, the coding must be performed in accordance with the connected MOST control modules.
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When the Switch closed parameter is set, the switch remains closed even in existing MOST control modules. Communication is then not
possible.
MOST 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.
Navigation
The navigation module is designed as a module box, which can be inserted in the PCM2 as an option. After the insertion, an electronic switch is opened
automatically and the module is integrated into the MOST ring.
Ring break diagnosis line
The ring break diagnosis line is an electrical lead, which, as a stub cable, connects the individual MOST control modules in the system with one another.
The existing MOST control modules are checked at regular intervals during communication with the control modules via the electrical/optical MOST.
Input signals
The following queries can be run using this menu item:
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Key code
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Increment steps
NOTE: Deactivate the automatic traffic announcement before performing the diagnosis on the PCM2. If this is not done, the diagnosis will abort
(only for software version < 03).
Menu item
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Key code
Function
Under this menu item, it is possible to check that the operating buttons are functioning during troubleshooting.
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Connect and start the Porsche System Tester II 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 menu and confirm with the >> key.
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Select PCM2 MMI in the PCM2 function selection and confirm with the >> key.
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Select the Input signals menu item and confirm with the >> key.
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Key code is displayed on the Porsche System Tester II 9588. The function is activated by marking with the > key and actuating the >> key.
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If functioning correctly, the relevant code appears on the tester's display field when the operating buttons are activated.
Menu item
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Increment steps
Function
This menu item shows the current status of the operating button.
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Connect and start the Porsche System Tester II 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 menu and confirm with the >> key.
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Select PCM2 MMI in the PCM2 function selection and confirm with the >> key.
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Select the Input signals menu item and confirm with the >> key.
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Select the Input signals menu item and confirm with the >> key.
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Increment steps is displayed on the Porsche System Tester II 9588 The function is activated by marking with the > key and actuating the >> key.
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If functioning correctly, the relevant code appears on the tester's display field when the operating buttons are activated.
Input signals