NHTSA ID Number: 10237206
Manufacturer Communication Number: 16-003-23
TSB/Document Date: 2023-06-04
Summary
Some customers may complain that Mazda
Connect does not start (blank screen) or that it takes a long time to restart/ reboot after starting the vehicle. This is caused by the initialization process with the CMU failing at startup due to a defective circuit board element. To eliminate this concern, the internal hardware (DRAM) of the CMU has been improved.
BULLETIN NOTES
This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red.
Previous TSBs:
Date(s) Issued:
16-003/23
03/17/23
16-004/22
11/04/2022 and 08/11/22
APPLICABLE MODEL(S)/VINS
2021-2022 CX-5 with VINS produced between JM3KF******448709 to 500771 (produced between July 1, 2021 December 1, 2021)
2021-2022 CX-9 with VINS produced between JM3TC******534676 to 603948 (produced between July 1, 2021 December 1, 2021)
2019-2022 Mazda3 (Japan Built) with VINS lower than JM1BP******506394 (produced before December 1, 2021)
2019-2022 Mazda3 (Mexico Built) with VINS lower than 3MZBP******254954 (produced before December 1, 2021)
2020-2022 CX-30 with VINS lower than 3MVDM******319149 (produced before December 1, 2021)
2022 MX-30 with VINS lowet than JM1DR**B***100606 (produced before December 1, 2021)
DESCRIPTION
Some customers may complain that Mazda Connect does not start (blank screen) or that it takes a long time to restart/
reboot after starting the vehicle. This is caused by the initialization process with the CMU failing at startup due to a
defective circuit board element. To eliminate this concern, the internal hardware (DRAM) of the CMU has been improved.
Customers having this concern should have their vehicle repaired using the following repair procedure.
REPAIR PROCEDURE
1. Verify the customer concern
2. Check the CMU Part No. and Serial No. of the CMU. If applicable, replace the CMU according to the procedure in
MGSS.
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05/23/2023 11:17 AM tlawrenc
NOTE: Refer to instructions below on how to indicate the Part No. and Serial No. of the CMU.
•
•
•
•
•
CX-5 (CONNECTIVITY MASTER UNIT (CMU) REMOVAL/INSTALLATION)
CX-9 (CONNECTIVITY MASTER UNIT (CMU) REMOVAL/INSTALLATION)
Mazda 3 (CONNECTIVITY MASTER UNIT (CMU) REMOVAL/INSTALLATION)
CX-30 (CONNECTIVITY MASTER UNIT (CMU) REMOVAL/INSTALLATION)
MX-30 (CONNECTIVITY MASTER UNIT (CMU) REMOVAL/INSTALLATION [(US)])
CMU Serial No and Part No. Retrieval
CX-5 and CX-9
Mazda3, CX-30, MX-30
1. Press and hold the Volume knob, then press
and hold the Entertainment and Favorites buttons
at the same time for 3-5 seconds and the Factory
/Service Inspection screen will appear.
2. Select "Service Information"
3. Select "Connected Device Information"
4. Select "CMU"
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05/23/2023 11:17 AM tlawrenc
5. Scroll down to "Serial No and CMU Part No"
and document on Repair Order.
6. Return to Factory/Service Inspection main
screen and select End Diag Mode
CMU Part No. and Serial No. can also be found
on the original part label
3. Verify the repair.
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05/23/2023 11:17 AM tlawrenc
PARTS INFORMATION
NOTE: The Part No. has not been changed for the further modification. Only Serial #'s in the range listed on the chart
are affected.
Serial No.
Year
Model
CMU Part Number
Qty.
From
To
2019-2020
Mazda3 (Japan Build)
BDGF-66-9C0*
622110
624748
1
2020
Mazda3 (Japan Build)
BFWM-66-9C0*
512261
512520
1
2021-2022
Mazda3 (Japan Build)
BGMC-66-9C0*
500070
505859
1
BGCE-66-9C0*
111827
113170
1
DGH9-66-9C0*
216848
227361
1
BGMR-66-9C0*
104005
121788
1
DN4E-66-9C0*
500125
500664
1
TC3P-66-9C0*
687234
754800
1
Notes
Mazda3 (Mexico Build)
2020
CX-30
2020
2020-2021
Mazda3 (Mexico Build)
CX-30
Refer to United Radio website
to place a part order.
Mazda3 (Mexico Build)
2021-2022
CX-30
2022
MX-30
CX-5
2021-2022
CX-9
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05/23/2023 11:17 AM tlawrenc
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.
Warranty Type
A
Symptom Code
61
Damage Code
9W
Part Number Main Cause
Quantity
Operation Number / Labor Hours:
CMU Part No. used above
0
XXW47XRX / 0.5 Hrs. (CX-5, CX-9)
XXW47ARX / 0.3 Hrs. (Mazda3, CX-30)
XXW47XRX / 0.9 Hrs. (MX-30)
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05/23/2023 11:17 AM tlawrenc
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TSB/Document ID: 16-003-23
Replacement Service Bulletin Number:
MFR Communication Date: 2023-05-23
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: EQUIPMENT:ELECTRICAL:INFOTAINMENT
MFR Component System:
MFR Component Subsystem:
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