Audio System - Sporadic Sound Failure
Cayenne12/03 9110
Binder 9, Electrical System
PCM2 With Bose Sound System: Sporadic Sound Failure
Date: 11-24-03
Vehicle Type:
Cayenne S/Cayenne Turbo
Model Year:
Model Year: '03 (3) and '04 (4)
Concern:
BOSE amplifier - Sporadic sound failure in vehicles with PCM2 (I No. SDV, 8DQ) and BOSE sound package (I No. 9VL)
Modified software in BOSE amplifier MY 04 (as of the date of introduction).
Information:
Sound failure occurs sporadically (no sound playback of PCM2 during radio or navigation operation) on vehicles from MY 03 and MY '04 with the equipment mentioned above - which were manufactured up to the introduction date mentioned below.
In the event of a complaint, the software of the BOSE amplifier must be updated using the CD "BOSE Update-CD 2003-1; Cayenne", part number, 00004320551.
After the update, the software matches the version in vehicles from MY 04 (as of the date of introduction) and that of BOSE amplifier, part number, 955 645 301 04.
Introduction:
Introduced the new BOSE amplifier software on August 18, 2003 as of VINs:
Software version:
1. The current version of the BOSE amplifier software can be displayed in the PCM2 display as follows:
After switching the PCM2 on, press and hold the "SET" button (Figure 1, Item 20), then press the "FM-AM" and the "AUDIO" button (Figure 1, Item 1 and 10) at the same time. The Service menu is shown in the display. Select the "SW versions" function by turning the right rotary knob (Figure 1, Item 18) and confirm by pressing the right rotary knob (Figure 1, Item 18).
Depending on the software, the following version is shown in the display under "amplifier":
"00012115" (or lower):
The software matches the amplifier software version for vehicles from MY '03 or MY '04 up to the introduction date.
=> Perform an update as is described in Item 2.
"00012118":
The software matches the amplifier software version for vehicles from MY '04 as of the introduction date.
=> An update is not necessary.
Press the Back button (Fig. 1, Item 19) to change to the PCM2 menu.
Parts Information:
Work Procedure:
2. Updating the Bose amplifier.
2.1 Switch off the ignition.
2.2 Connect charger to the electrical system battery.
2.3 Switch on the PCM2 by pressing the On/Off switch (Fig. 1, Item 8).
2.4 Activate the Eject button (Fig. 1 Item 24) and remove CD if present from the CD slot (Fig. 1, Item 26).
3. Transferring the new software version of the BOSE amplifier software:
3.1 Insert update CD with inscription "BOSE update CD 2003-1, Cayenne", Part Number, 000 043 205 51 in the CD slot (Fig. 1, Item 26). The software update starts automatically.
3.2 PCM2 display "Update software to version 1.21.18". Select field "Yes" by turning the rotary knob (Fig. 1, Item 18) and confirm by pressing the rotary knob (Fig. 1, Item 18).
3.3 PCM2 display during the update:
"Update the amplifier. Device 1 of 2."
"Update the amplifier. Device 2 of 2."
For each update step there is a bar shown that displays the loading progress.
Note:
If the display "Update failed" or if a loading progress bar is not shown:
Remove update CD from the CD slot (Fig. 1, Item 26) by pressing the Eject button (Fig. 1, Item 24). Insert the update CD into the CD slot again. The software update is started again (step 3).
3.4 When the update is finished, "Update successful" is displayed in the PCM2 display.
Note:
The message about a successful update is brief, afterwards the PCM2 switches off automatically.
If the PCM2 does not switch off automatically, switch off the PCM2 manually by pressing the On/Off switch (Fig. 1, Item 8).
3.5 Switch on the PCM2 by pressing the On/Off switch (Fig. 1, Item 8).
3.6 Remove update CD from the CD slot (Fig. 1, Item 26) by pressing the Eject button (Fig. 1, Item 24).
4. Concluding work:
4.1 If present, insert the removed CD into the CD slot again.
4.2 Switch off the PCM2 by pressing the On/Off switch (Fig. 1, Item 8).
4.4 Enter update in the Warranty and Maintenance booklet (see Cayenne Technical Manual, Group 0, Technical Information Bulletin # 2/03).
4.5 Disconnect the charger.
Literature:
Cayenne Technical Manual, Group 2:
> Repairs: 27-2 - Charge battery Group 0:
> Tech. Information Bulletin # 2/03-Control unit replacement/software update
Disclaimer