♦When the PCM2 is replaced, the coding must be performed in · accordance with the connected MOST control modules.

911 Turbo (996) PCM2/CDR23 91 Note! ♦When the PCM2 is replaced, the coding must be performed in accordance with the connected MOST control modules. ♦When the 'Switch closed' parameter is set, the switch remains closed even in existing MOST control modules. Communication is then not possible. 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. Drive links Drive links of the PCM2 can be activated with this menu item. This allows the function of the drive links to be assessed very quickly. The following drive links can be activated with the 9588 Porsche System Tester II: ♦Display colour black ♦Display colour "coloured bars" ♦Display colour blue ♦Display colour red ♦Display colour green ♦Display colour white Note! The activated drive link is automatically switched off after approxi- mately 20 seconds. 9101 Control unit function - MMI 91-75 page 23 Printed in Germany – 43, 2003 SgfMMlwl