Mazda North American Operations
Irvine, CA 92618-2922

M-Tips
Subject:

MAZDA CONNECT AUDIO SOURCE AHA / PANDORA / STITCHER /
BLUETOOTH® IMPROPER OPERATION WHEN CONNECTED TO USB
PORT

M-Tips No.: MT-002/18

Last Issued: 12/05/2018

BULLETIN NOTES
This M-Tip supersedes the previously issued M-Tip(s) listed below: The changes are noted in Red.

Previous M-TIPs: Date(s) Issued:
MT-002/18

02/09/18

APPLICABLE MODEL(S)/VINS

2014-2018 Mazda3 2016-2019 CX-3 2016-2019 CX-9
2016-2018 Mazda6 2016-2019 CX-5 2016-2019 MX-5

DESCRIPTION
Some customers may complain about improper operation of the MAZDA CONNECT system when
streaming music with audio source aha/Pandora/Stitcher/Bluetooth® and the same device is also connected
to the USB port for charging.
The concerns may include:




Blank Screen and/or No Audio Sound
Phone will not charge

Page 1 of 3
An editorial board comprised of MNAO service staff members generates, collects, and verifies information for this publication.
To contribute repair tip ideas, send an e-mail to [email protected]. All contributions become property of MNAO, which assumes permission to publish them without further
consideration.

© 2018 Mazda North American Operations, U.S.A.

M-Tips No.: MT-002/18

Last Issued: 12/05/2018

Blank Screen and/or No Audio Sound
These concerns may be caused by:




The MAZDA CONNECT system has reached its capacity limits when streaming music with audio
source aha/Pandora/Stitcher/Bluetooth® and also connected to the USB port.
The MAZDA CONNECT system has reached its capacity limits when the customer's USB device
capacity exceeds 16 GB (e.g. 64 GB iPhone X). The MAZDA CONNECT system USB port capacity
is 16 GB (FAT32).

Mazda recommends not to connect any devices to the USB port when streaming music with audio source
aha/Pandora/Stitcher/Bluetooth®.
When streaming music with audio source aha/Pandora/Stitcher/Bluetooth® (without USB connection), the
Connectivity Master Unit (CMU) is able to process Bluetooth® digital data (A) and output audio sound and
display Bluetooth® audio information. If the same device is connected to the USB port for charging, the
CMU processes both Bluetooth® digital data (A) and USB digital data (B) from the same device at the same
time. In this case, CMU resources may be exceeded, causing a Blank Screen and/or No Audio Sound.

Page 2 of 3
An editorial board comprised of MNAO service staff members generates, collects, and verifies information for this publication.
To contribute repair tip ideas, send an e-mail to [email protected]. All contributions become property of MNAO, which assumes permission to publish them without further
consideration.

© 2018 Mazda North American Operations, U.S.A.

M-Tips No.: MT-002/18

Last Issued: 12/05/2018

Phone Will Not Charge
The customer's device (e.g. smart phone) charging amperage requirement may be higher than the USB
port amperage limit. See table below:

USB SPECIFICATION CHART
Audio
System

Model

Max
Max USB
Max
Apple CarPlay
Number of Max
Front USB
Rear USB
Size (File
Folder
/ Android Auto
Music Files Folders
Amperage
Charging*
System)
Levels
USB Amperage
per Folder

20142018
Mazda3
20162018
MAZDA
16 GB
Mazda6
CONNECT
(FAT32)
20162019CX-3
2016 CX-5
20162019MX-5
2018
Mazda6
MAZDA
2017CONNECT 2019CX-5
20162019CX-9

16 GB
(FAT32)

255

255

65,534

65,534

8

Apple
Device
1 A @ 5V
--Except
Apple
Device
500 mA @
5V

2.1 A @ 5V

N/A

8

Apple
Device
1 A @ 5V
--Except
Apple
Device
500 mA @
5V

2.1 A @ 5V

2.1 A @ 5V

* If equipped

Page 3 of 3
An editorial board comprised of MNAO service staff members generates, collects, and verifies information for this publication.
To contribute repair tip ideas, send an e-mail to [email protected]. All contributions become property of MNAO, which assumes permission to publish them without further
consideration.

© 2018 Mazda North American Operations, U.S.A.