• See Warranty Information Note.
○

No

8

Go to MGSS "DIAGNOSTIC ASSIST
FUNCTION [CONNECTIVITY MASTER
UNIT (US)]"
Perform Functional Inspection/
Adjustment -> Touch Pad/Commander
Inspection -> Commander switch
inspection.
Did the Commander switch
inspection Pass?

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

Pass

• Retrieve CMU log data if possible before
replacing the CMU.
Important Note
• Document date and time of the condition.
○

Fail

Go to step 9.

9

Is the connector for the Commander
Switch inserted correctly?

Yes

Go to step 10.

No

Insert the connector correctly.

10

Are the CMU connectors inserted
correctly?

Yes

Go to step 11.

Swap the Commander Switch with good
11 known vehicle. Does the Commander
Switch work correctly?

No

Insert the connectors correctly.

Yes

Check / Replace the Commander Switch.

No

Go to step 12.
Check / Replace the CMU.

Swap the CMU from known good vehicle.
12 Does the Commander Switch work
correctly?

Yes

No

• Retrieve CMU log data if possible before
replacing the CMU.
Important Note
• Document date and time of the condition.
• See Warranty Information Note.
○

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

Page 11 of 23

08/08/2024 01:32 PM tlawrenc

No. 6 Bluetooth device will not pair
Step

Inspection

Result

Action

1

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

Yes

Go to MGSS for DTC diagnosis.

No

Go to step 2.

2

Is Bluetooth enabled on the
customers device?

Yes

Go to step 3.

No

Enable Bluetooth on the customers device.

3

Is the customers device paired to
the vehicle?

Yes

Go to step 4.

No

Pair the customers device to the vehicle.

4

Is the customers device selected in
MAZDA CONNECT settings?

Yes

Go to step 5.

No

Select the customers device from Bluetooth settings.

Yes

Normal Operation.

5

Delete the device from MAZDA
CONNECT and then re-pair it.
Does Bluetooth work correctly?

No

Go to step 6.

Yes

Go to step 7.

6

Go to connect.mazda.com ->
Support -> Compatibility.
Is the customers device
compatible?

No

The customers device is not compatible.

Yes

Go to step 8.
Check / Replace the CMU.

7

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

No

• Document customer device Brand/Model/Model
Number/software version/occurrence of the
condition on the repair order.
• Retrieve CMU log data if possible before
replacing the CMU.
Important Note
• Document date and time of the condition.
• If necessary, contact Hotline for additional
support.
• See Warranty Information Note.
○

Yes

Vehicle operation is normal.
Check / Replace the CMU.

8

Reboot the customers device.
Does Bluetooth work correctly?

No

• Document device model, software version and
occurrence of the condition.
• Retrieve CMU log data if possible before
replacing the CMU.
Important Note
• Document date and time of the condition.
• Document customer device Brand/Model/Model
Number/software version on the repair order.
○

Page 12 of 23

08/08/2024 01:32 PM tlawrenc

• If necessary, contact Hotline for additional
support.
• See Warranty Information Note.

Page 13 of 23

08/08/2024 01:32 PM tlawrenc

No. 7 Incorrect GPS position
Step

1

Inspection
Go to MAZDA CONNECT -> Navi menu, Travel
Information -> Where Am I? -> Settings -> GPS
information -> Check Available Satellites.
or
Go to MGSS "DIAGNOSTIC ASSIST FUNCTION
[CONNECTIVITY MASTER UNIT (US)]" and
perform Functional Inspection/Adjustment -> Navi
System Inspection -> Check GPS Received Level.

Result

Action

Yes

Normal Operation.

No

Go to step 2.

Yes

Go to step 4.

No

Go to step 3.

Yes

Go to step 9.

No

Swap wheels/tires with correct size. If
issue is fixed, inform the customer.

Yes

Go to step 5.

No

Insert the connector correctly.

Yes

Repair / Replace GPS wiring
harness.

Does the Navi system show correct vehicle position?

2

Using M-MDS, are any of the following DTC's
stored?
- B119F:13, GPS antenna signal circuit malfunction
(short to power or open circuit)
- B119F:2B, GPS antenna signal circuit malfunction
(short to ground)

3

Is the wheel and tire size correct according to the tire
label?

4

Is the GPS antenna connector secured properly?

5

Is the GPS wiring harness open or shorted?

6

Did TSB 09-021/20 resolve the concern?

7

Are the CMU connectors secured properly?

8

Is the CMU wiring harness open or shorted?

No

Go to TSB 09-021/20.

Yes

Repair Complete.

No

Go to step 7.

Yes

Go to step 8.

No

Insert the connectors correctly.

Yes

Repair / Replace CMU wiring
harness.

No

Go to step 9.

Yes

Repair completed.
Check / Replace the CMU.

9

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

No

• Document date and time of the
condition.
• Retrieve CMU log data if
possible before replacing the
CMU.

Page 14 of 23

08/08/2024 01:32 PM tlawrenc

Important Note
• Retrieve CMU backup data if
possible before replacing the
CMU.
○

10

Using M-MDS, is DTC B119F:49 stored?
(Communication error with GNSS)

11 Are the CMU connectors secured properly?

Yes

Go to step 11.

No

Go to step 13.

Yes

Go to step 12.

No

Insert the connectors correctly.

Yes

Repair / Replace CMU wiring
harness.
Check / Replace the CMU.

12 Is the CMU wiring harness open or shorted?
No

Check / Replace the CMU.

13

• Document date and time of the condition.
• Retrieve CMU log data if possible before
replacing the CMU.
• Retrieve CMU backup data if possible before
replacing the CMU.

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

Yes

Repair completed.

No

Repair / Replace GPS antenna.

Did DTC B119F:49 clear?
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 15 of 23

08/08/2024 01:32 PM tlawrenc

No. 8 Voice Recognition Does Not Work
Step

Inspection

Result

1

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

Yes

Go to MGSS for DTC diagnosis.

No

Go to step 2.

Pass Go to step 3.

2

Go to MGSS "DIAGNOSTIC ASSIST FUNCTION
[CONNECTIVITY MASTER UNIT (US)]" and
perform Functional Inspection/Adjustment ->
Steering SW Inspection -> Did the Steering SW
Inspection Pass?

Fail

Action

Go to MGSS STEERING SWITCH
INSPECTION.
Check / Replace the CMU.

3

Go to MGSS "DIAGNOSTIC ASSIST FUNCTION
[CONNECTIVITY MASTER UNIT (US)]" and
perform Functional Inspection/Adjustment ->
Microphone Inspection ->
Did the Microphone Inspection Pass?

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

Pass

Fail

Go to MGSS MICROPHONE
INSPECTION.

No. 9 Cannot Make a Hands-Free Call
Step
Inspection
Result

Action

Yes

Go to MGSS for DTC diagnosis.

1

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

No

Go to step 2.

2