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Home >> Porsche >> 2009 >> Cayenne Turbo (9PA) V8-4.8L Turbo >> Repair and Diagnosis >> Relays and Modules >> Relays and Modules - Accessories and Optional Equipment >> General Module >> Testing and Inspection >> Initial Inspection and Diagnostic Overview >> PCM/CDR23 >> PCM2 External BOSE Amplifier >> MOST Switch (Not on CDR23)

MOST Switch (Not on CDR23)



MOST Switch (Not On CDR23)

The MOST switch is part of the PCM2. It keeps the electrical MOST closed if no other MOST control unit is optically connected to the MOST. The MOST switch is opened when a light signal is received from the connected MOST control units.

NOTE:
- When the PCM2 is replaced, the coding must be performed in accordance with the connected MOST control units.
- When the 'Switch closed' parameter is set, the switch remains closed even in existing MOST control units. Communication is then not possible.