Cell Phone - Bluetooth(R) Hands Free Volume Is Too Low
91 Bluetooth phone preparation: Hands-free volume too low91 10 16
2020190/3
April 26, 2010
Supersedes Technical Service Bulletin Group 91 number 09-68 dated September 23, 2009 for reasons listed below.
Affected Vehicles
Condition
During a hands-free telephone call via the Bluetooth phone preparation, the volume level in the vehicle is too low.
Only vehicles with the CAN-based generation 3 radio (without navigation) in model year 2009 are affected.
Technical Background
The Adaptation channel value for phone volume level is incorrect. Only Bluetooth phone preparation control unit (address word 77) with software version 0520 and 0550 are affected.
Production Solution
Bluetooth phone preparation control unit (R36) with software level 0600 or greater.
Service
A. Control units with software version 0520 - Replacing control unit
Replace the Bluetooth phone preparation control unit with part number 8T0 862 336D. A software update is not possible.
B. Control units with software version 0550 - SVM Update Instructions
1. Ensure value 11 is stored in Adaptation channel 139 in the Bluetooth phone preparation control unit (address word 77). If necessary, change and store the correct value.
2. Follow all instructions in the attached TSB 2011732 00 Software Version Management (SVM), operating instructions.
3. Update the Bluetooth phone preparation control unit (R36) using the SVM action code as listed in the table if necessary.
Warranty
Required Parts and Tools
Additional Information
The following Technical Service bulletin will be necessary to complete this procedure:
^ TSB 2011732 00 Software version Management (SVM) Operating Instructions.
All parts and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Department and service manuals for the latest information.
Attachment - TSB 2011732 00 Software version Management (SVM) Operating Instructions.