Campaign 91D6 - Speakers Pop On Vehicle Start Up
RVU 91D6 - Popping noise through Bose speakers when starting vehicle (CF)91 10 31
2016806/3
May 25, 2010
Supersedes Technical Service Bulletin Group 91 number 09-66 dated September 8, 2009 for reasons listed below.
Affected Vehicles
Condition
This RVU has been proactively released to prevent the following condition from occurring in the vehicle:
^ When the ignition is turned on, a cracking or popping noise is heard through the BOSE sound system.
^ DTC 01042 (control module not coded) and/or DTC 002762 (system reset) must be stored in the amplifier Addressword 47 - Sound system.
^ Only the BOSE (PR-Nr. 8RY) sound system is affected by this condition.
This Required Vehicle Update (RVU) is in effect until August 3, 2010. After that date, this RVU will expire and no longer be in effect.
Vehicle must meet all of the following criteria:
^ Procedure is valid only for vehicles that show the CF code in the ElsaWeb Campaign/Action Information screen on the day of repair.
^ Vehicle must be within the Limited New Vehicle Warranty.
^ Procedure must be performed within the allotted time frame stated in this Technical Service Bulletin.
^ Procedure must be performed on applicable vehicles in dealer inventory prior to sale.
Technical Background
The BOSE amplifier loses its coding.
Production Solution
New software in the BOSE amplifier control module (J525) resolves the problem.
Service
1. Coupe: Recode addressword 47 - Sound system through Guided Fault Finding by running the function test plan for the DTCs or selecting the following:
GFF >> Go to >> Function / Component Selection >> Body (Rep.Gr. 01; 27; 50-97) >> Electrical equipment (Rep.Gr. 01; 27; 90-97) >> 01 - On Board Diagnostic (OBD) capable systems >> 47 - Sound system Bose | J525 >> 47 Control module coding (RG.91)
2. Roadster: Recode addressword 47 Sound system. Use code 236126.
3. After recoding, check the software part number and software level in the BOSE amplifier control module (J525).
4. Prior to beginning the SVM process, insert a USB memory stick into the VAS 505X tester to capture the diagnostic log electronically.
5. Update the BOSE amplifier control module (J525) using SVM action code as listed in the table below if necessary. The SVM code is 8J47A001.
Tip: The SVM Process must be completed in its entirety so the database receives the update confirmation response. A warranty claim may not be reimbursed if there is no confirmation response to support the claim.
For further SVM update instructions and troubleshooting, please refer to the TSB 2011732 00 Software Version Management (SVM), operating instructions.
Warranty
Required Parts and Tools
Amplifiers are not allowed to be replaced for this condition and will be re-debited.
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 - 00 Software Version Management (SVM), operating instructions