Audio System - Poor Audio Quality When Using Cell Phone
Date: March 23, 2006Order No.: P-B-82.70/492
Supersedes:
Group: 82
SUBJECT:
All Model 171, 203, 209, 211, 215, 219, 220
Model Year 2005 and Later
Vehicles Not Equipped with Voice Control
Poor Audio Quality When Using Phone in Hands Free Mode
If you receive customer reports in the above model vehicles (not equipped with a voice control unit) for any hands free quality or poor understanding of persons in vehicles, check the software version of the MHI control unit by following the steps below.
Checking MHI Software Version Using STAR Diagnosis: Navigate to the following menu: Control units --> Information and communication --> Audio, video, navigation, telematics --> CTEL-mobile phone adapter with universal interface --> Control unit version
If the software version is not 31/05 or later, follow the procedure below to update the MHI control unit. If the software version is 31/05 or later, there are no further updates as this is the most current hands free audio quality software.
Flashing the MHI Using STAR Diagnosis and the Cradle Programming Tool (Special Tool 203 589 06 63 00 released to all dealers January 30, 2006): Navigate to the following menu and be sure to follow programming instructions provided by STAR Diagnosis.
Warning!
Do not disconnect the programming tool during flashing process. This will result in damage to the MHI control unit which will result in replacement. If flashing fails or does not complete correctly and the MHI is not responding, attempt a hard reset of the MHI by removing the electrical connector from the control unit.
Control units --> Information and communication --> Audio, video, navigation, telematics --> CTEL - mobile phone adapter with universal interface --> Troubleshoot by means of complaint or symptoms --> Any hands-free quality complaints, example poor line quality --> Check software status and update software as required --> If the software needs to be updated, press F2 and follow the instructions.
Note:
After flashing the MHI, it may be necessary to perform control unit adaptations. If STAR Diagnosis prompts for a control unit adaptation, navigate to the following menu: Control unit adaptations --> Microphones ~ Select the appropriate microphone configuration
Model 171 - Equipped with three microphones
Models 203, 209, 211, 215, 219, 220 - Equipped with either four microphone configuration (Figure 1, circles) or new two microphone configuration (Figure 2, circles)
Note:
New core kit (BQ 682 0965) contains the updated MHI control unit.
Note:
The following allowable labor operations should be used when submitting a warranty claim for this repair
In Case of Warranty