volume of audio?

10

>
Are there any problems with the media
and the music files?
>
Are there any problems with the antenna
and the reception?
>
Are there any problems with Bluetooth?

11

Go to MGSS "DIAGNOSTIC ASSIST
FUNCTION [CONNECTIVITY MASTER
UNIT (US)]"
Perform Diagnostic Assist Code “94”
Speaker Inspection.

Yes
No

Yes

No

Pass

Action
Go to MGSS for DTC diagnosis
Go to step 2.
Go to step 3.
Go to step 4.
Advise customer to update their iPhone IOS to
15.1 or higher, then go to step 4.
Go to step 5.
Repair complete.
Collect CMU log data and contact Hotline for
additional support.
Go to step 6.
Go to step 7.
Normal Operation.
Go to step 8.
Normal Operation.
Go to step 9.
Complete
Check / Replace the CMU.
• Retrieve the data log if possible before
replacing the CMU
• Document date and time of the condition
• If necessary, contact Hotline for additional
support.
• See Warranty Information Note.
Normal Operation
Go to step 10.
>
Check the media and the compatible files.
>
Check the antenna, the reception, and the Tuner
and Amp Unit (TAU) side.
>
Check the Bluetooth connection and the
Bluetooth device.
Go to step 11.
Check / Replace the CMU. Retrieve
• Retrieve the data log if possible before
replacing the CMU

Page 6 of 18

08/08/2024 01:30 PM tlawrenc

Did the Speaker Inspection Pass?
• Document date and time of the condition
• If necessary, contact Hotline for additional
support.
• See Warranty Information Note.

Fail

Go to MGSS NO SOUND OUTPUT IN ALL
MODES [ENTERTAINMENT SYSTEM [WITH
CENTER DISPLAY]]

No. 5 Commander Switch Does Not Work
Step
1
2
3

4

5

Inspection

Result
Yes
Using M-MDS, are any infotainment
system DTC's stored?
No
Yes
Does the Commander Switch work
correctly?
No
Does the Steering Wheel Switch work Yes
correctly?
No
2016-2020 CX-5: Inspect connector C- Yes
16 for corrosion due to liquid spill. Is
corrosion found at C-16?
No
Other models: Go to next step

Are fues blown/ missing?

Yes
No
Pass

6

7
8
9

10

Go to MGSS "DIAGNOSTIC ASSIST
FUNCTION [CONNECTIVITY MASTER
UNIT (US)]"
Perform Diagnostic Assist Code “65”
Fail
Commander Switch and Steering
Wheel Switch Inspections.
Did the Switch Inspections Pass?
Yes
Is the connector for the Commander
Switch inserted correctly?
No
Yes
Are the CMU connectors inserted
correctly?
No
Swap the Commander Switch with good Yes
known vehicle. Does the Commander
No
Switch work correctly?
Swap the CMU from known good
vehicle.
Does the Commander Switch work
correctly?

Action
Go to MGSS for DTC diagnosis
Go to step 2.
Go to step 3.
Go to step 4.
Normal Operation.
Go to step 5.
Repair as necessary
Go to next step

• Blown - Diagnose blown fuse
• Missing - Install missing fuse
Go to step 6.
Go to step 7.
Replaced the failed switch. Go to MGSS:
• Steering Wheel Switch Removal/Installation
• Commander Switch Removal/Installation
Go to step 8.
Insert the connector correctly.
Go to step 9.
Insert the connectors correctly.
Check / Replace the Commander Switch.
Go to step 10.
Check / Replace the CMU.

Yes

• Retrieve the data log if possible before
replacing the CMU

Page 7 of 18

08/08/2024 01:30 PM tlawrenc

• Document date and time of the condition
• See Warranty Information Note.

No

Repair/Replace wiring harness. Go to MGSS View
Content -> Wiring Diagram -> Body and
Accessories -> Entertainment System.

Page 8 of 18

08/08/2024 01:30 PM tlawrenc

No. 6 Bluetooth device will not pair
Step
Inspection
1

Using M-MDS, are any infotainment system
DTC's stored?

2

Is Bluetooth enabled on the customers
device?

3

Is the customers device paired to the
vehicle?

4

Is the customers device selected in MAZDA
CONNECT settings?

5

6

7

Delete the device from MAZDA CONNECT
and then re-pair it.
Does Bluetooth work correctly?
Go to http://
infotainment.mazdahandsfree.com Web
Site.
Is the customers device compatible?

Does the same symptom occur on another
same model/year vehicle?

Result
Yes
No
Yes
No
Yes

Yes

Action
Go to MGSS for DTC diagnosis
Go to step 2.
Go to step 3.
Enable Bluetooth on the customers device.
Go to step 4.
Pair the customers device to the vehicle.
See MGSS Bluetooth® PAIRING NOT
POSSIBLE [ENTERTAINMENT SYSTEM
[WITH CENTER DISPLAY]]
Go to step 5.
Select the customers device from Bluetooth
settings.
Normal Operation

No

Go to step 6.

Yes

Go to step 7.

No

The customers device is not compatible.

Yes

Go to step 8.
Check / Replace the CMU.

No
Yes
No

No

Yes

8

Reboot the customers device. Does
Bluetooth work correctly?

No

• Document device model, software
version and occurrence of the condition.
• Retrieve the data log if possible before
replacing the CMU
• Document date and time of the
condition
• If necessary, contact Hotline for
additional support.
• See Warranty Information Note.
Vehicle operation is normal.
Check / Replace the CMU.
• Document device model, software
version and occurrence of the condition.
• Retrieve the data log if possible before
replacing the CMU
• Document date and time of the
condition
• If necessary, contact Hotline for
additional support.
• See Warranty Information Note.
Page 9 of 18

08/08/2024 01:30 PM tlawrenc

No. 7 Incorrect GPS position
Step
Inspection
Result
Action
Go to MGSS "DIAGNOSTIC ASSIST FUNCTION Yes
Normal Operation.
[CONNECTIVITY MASTER UNIT (US)]"
Perform Diagnostic Assist Code “72” GPS
information verification.
1
Check GPS Received Level.
No
Go to step 2.

2

Does the Navi system show correct vehicle
position?
Using M-MDS, are any of the following DTC's
stored?
- B119F:1D, GPS antenna circuit malfunction
- B119F:11, GPS antenna circuit malfunction
- B119F:13, GPS antenna circuit malfunction
- B119F:92, GPS antenna circuit malfunction

Yes

Go to step 4.

No

Go to step 3.

3.

Yes
Is the wheel and tire size correct according to the
tire label?
No

4

Is the GPS antenna connector secured properly?

5

Is the GPS wiring harness open or shorted?

6

Are the CMU connectors secured properly?

7

Is the CMU wiring harness open or shorted?

8

Replace GPS antenna. Does the Navigation
system show correct position?

Yes
No
Yes
No
Yes
No
Yes
No
Yes

No

Go to step 8.
Swap wheels/tires with correct size. If
issue is fixed, inform the customer.
Go to step 5.
Insert the connector correctly.
Repair / Replace GPS wiring harness.
Go to step 6.
Go to step 7.
Insert the connectors correctly.
Repair / Replace CMU wiring harness.
Go to step 8.
Repair completed.
Check / Replace the CMU.
• Retrieve the data log if possible
before replacing the CMU
• Document date and time of the
condition
• If necessary, contact Hotline for
additional support.
• See Warranty Information Note.

NOTE: Remove aftermarket GPS devices that may interfere with vehicle GPS antenna.
Example: Some radar detectors may emit radio waves that interfere with the vehicle GPS antenna.

Page 10 of 18

08/08/2024 01:30 PM tlawrenc

No. 8 Voice Recognition Does Not Work
Step
1

2

3

4

Inspection
Using M-MDS, are any infotainment system DTC's
stored?

Result
Action
Yes
Go to MGSS for DTC diagnosis
No
Go to step 2.
Pass Go to step 3.

Go to MGSS "DIAGNOSTIC ASSIST FUNCTION
[CONNECTIVITY MASTER UNIT (US)]"
Perform Diagnostic Assist Code “65” Commander
Fail
Switch and Steering Wheel Switch Inspections.
Did the Steering SW Inspection Pass?
Go to MGSS "DIAGNOSTIC ASSIST FUNCTION
Pass
[CONNECTIVITY MASTER UNIT (US)]"
Perform Diagnostic Assist Code “61” Microphone signal
Fail
input condition
Did the Microphone Inspection Pass?
Yes

Go to MGSS VOICE OPERATION NOT POSSIBLE
[ENTERTAINMENT SYSTEM [WITH CENTER
DISPLAY]]
Is the vehicle repaired?

Go to MGSS STEERING SWITCH
INSPECTION.
Go to step 4.
Go to MGSS MICROPHONE
INSPECTION.
Repair complete
Check / Replace the CMU.

No

• Retrieve the data log if
possible before replacing the
CMU
• Document date and time of
the condition
• If necessary, contact Hotline
for additional support.
• See Warranty Information
Note.