Cell Phone - Bluetooth(R) Hard To Hear On Land Line End
Bulletin No: 09-015/10Last Issued: 03/15/2010
Subject:
BLUETOOTH HANDS-FREE VOICE PERFORMANCE IMPROVEMENT AT FAR
END
BULLETIN NOTE
APPLICABLE MODEL(S) / VINS
DESCRIPTION
Some vehicles equipped with Bluetooth hands-free may experience a concern where the person on the far end of the line complains of a muffled sound I hard to hear the driver's voice. This may be due to the microphone being sensitive enough to pick up background noise when driving.
Please explain to the customer that the voice performance at the far end might deteriorate according to the following conditions of use". Please refer to the following Owner's Manual exact for details.
To prevent the deterioration in voice recognition rate and voice quality, the following points must be observed:
^ It is not necessary to face the microphone or approach it. Speak the voice commands while maintaining a safe driving position.
^ Close the windows and/or the moonroof to reduce loud noises from outside the vehicle, or turn down the airflow of the climate control system while Bluetooth Hands-Free is being used. Voice recognition may not function correctly or voice quality may deteriorate under the following conditions:
^ A passenger is speaking.
^ Driving with the window and/or the moonroof open.
^ Driving on bumpy roads.
^ Noise outside of the vehicle is loud (construction sites, inside tunnels, excess oncoming traffic or heavy rain).
^ Operation noise from turn signals, wipers or horn.
^ A/C airflow is strong or wind is blowing on the microphone.
^ There is noise coming from cargo loaded in the vehicle.
When you encounter a customer complaint for this concern, verify that none of the conditions of use" (see Owner's Manual extract above) are occurring. If none of the conditions of use" are occurring and the customer is still experiencing this concern, use the following procedure to improve voice performance at the far end.
REPAIR PROCEDURE
This procedure will move the location of the microphone from the upper center panel to the overhead console using a short cord according to the following repair procedure.
NOTE:
For better voice quality at the far end, recommend to the customer to reduce the A/C blower fan or properly use the A/C ventilator to control air flow while using the microphone so as not to blow directly onto the microphone.
1. Verify customer concern.
2. In order to move the microphone location from upper center panel to the overhead console, remove the following components, then route the short cord as shown by the dotted line referring to the following steps.
REMOVAL:
1. Record customer's preset radio station.
2. Disconnect negative battery cable.
3. Remove clips (B), then upper center panel (A).
4. Gently remove glove box to avoid breakage.
5. Remove A-pillar trim.
6. Remove assist handle.
7. Remove sunvisor.
8. Remove overhead console.
NOTE:
Insert a tape-wrapped flathead screwdriver into the service hole (A) and gently pry in the direction shown by the arrow to remove the lens.
INSTALLATION:
1. Route short cord from upper center panel to overhead console.
a. Disconnect microphone connector (A) from harness, then connect short cord to harness. Route short cord between audio (B) and instrumental panel through opening (C).
b. Route short cord behind glove box.
NOTE:
Ensure the A/C filter cover can still be removed.
c. Pull short cord up through A-pillar and instrumental panel clearance.
d. Route short cord (B) from A-pillar (D) to headliner (A).
NOTE:
Align the marking (C) on harness to the edge of the headliner.
2. Apply pads to short cord at A-pillar.
a. Apply two (2) pads (A) over short cord.
b. Apply two (2) pads (B) over the short cord.
NOTE:
Ensure there is no glove box interference and the A/C filter cover (A) can still be removed.
c. To prevent short cord (B) damage, align short cord along right side of upper center panel opening (D), then apply two (2) pads (C) over short cord.
NOTE:
In order to prevent noise interference, apply one (1) pad over the connector (A), then attach frontward of upper center panel opening.
3. Install new microphone on overhead console, then connect short cord connector.
4. To prevent short cord damage, align short cord along right side of map light opening, then install map light.
5. Install in reverse order of removal.
6. Reconnect negative battery cable.
7. Re-enter customer's preset radio station.
8. Perform "Power Window Initialization Procedure".
9. Verify repair.
PART(S) INFORMATION
WARRANTY INFORMATION
NOTE:
^ This warranty information applies only to verified customer complaints on vehicles eligible for warranty repair.
^ This repair will be covered under Mazda's New Vehicle Limited Warranty term.
^ Additional diagnostic time cannot be claimed for this repair.