General information · The PCM is protected against theft by a device 5. Correction of incorrect inputs:

911 Carrera (996) PCM diagnosis General information The PCM is protected against theft by a device 5. Correction of incorrect inputs: code. Furthermore, the integrated navigation If an incorrect digit is input, position the system is also protected by a code against selection pointer to Correction and unauthorizedusers. press the knob: < 1 sec.: Last digit input is deleted. Both codes must be input when the system is > 1 sec.: Entire content of the input field is commissioned at the factory or after deleted. replacement of the display and operator control Then continue with correct input. unit and the navigation unit. In both cases, the code for the PCM must be input first. Onlythe NAVIcode has to be input again after If the wrong code was input the navigation system has been exchanged. The system is locked up for around 10 minutes Onlythe PCM code has to be input again after if an incorrect code was entered three times. an interruption in the continuouspower supply Another three incorrect inputs lock up the (e.g. when the battery is changed)if both codes system for an additional 10 minutes. After were input correctly before the interruption. another three incorrect inputs (i.e. after a total of nine unsuccessfulattempts), the lock-uptime Code input increasesto 60 minutes (this also appliesto all further groups of three incorrect inputs). HoweverI the emergency-callfunction of the PCM1. Switch on the PCM. system always remainsavailable. 2. The prompt to input the PCM code appears. 3. The max. 4-digit device code number is input and confirmed using the right-hand knob. Rotate knob to position the selection pointer to the option PCM and press. Select the digits by turning and confirm by pressing the knob. After entering the PCM code, select the option Coni irm. 4. After input of the PCM code, the NAVIcode can be input analogouslyin order to activate the navigation system. If the NAVIcode is not input, the remaining system functions (telephone, on-boardcomputer, audio system, main display and NC display)are neverthelessavailable. 9101 Diagnosis/troubleshooting, PCM 91 -D3