NHTSA ID Number: 11000683
Manufacturer Communication Number: SA-021-24a
TSB/Document Date: 2024-06-03
Summary
Some customers may complain about intermittent audio no sound from the MAZDA
CONNECT infotainment system and/or static noise from the speakers. The concern may be reproduced by tapping on the dash pad near the MAZDA CONNECT center display and the following DTC's may be stored. U0186:08 Communication error with audio amplifier U2145:08 Communication error with remote tuner (RT) U2145:02 Communication error with remote tuner (RT)
BULLETIN NOTES
This SA supersedes the previously issued SA(s) listed below. The changes are noted in Red.
Previous SAs:
Date(s) Issued:
SA-021/24
04/09/24
SA-070/22
11/01/22
APPLICABLE MODEL(S)/VINS
2020-2024 CX-30
2019-2024 Mazda3
DESCRIPTION
Some customers may complain about intermittent audio no sound from the MAZDA CONNECT infotainment system and/
or static noise from the speakers. The concern may be reproduced by tapping on the dash pad near the MAZDA
CONNECT center display and the following DTC's may be stored.
• U0186:08 Communication error with audio amplifier
• U2145:08 Communication error with remote tuner (RT)
• U2145:02 Communication error with remote tuner (RT)
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05/13/2024 09:26 AM tlawrenc
This may be caused by PIN 6F backing out at the CMU connector 0920-101F.
REPAIR PROCEDURE
1. Verify the customer concern.
2. Disconnect the Instrument Panel Harness connector 0920-101F (CMU connector).
3. Add a paint mark (A), (or equivalent) to one of the black cables and blue connector as shown.
4. Remove pins 6F and 6H from the MOST output connector 0920-101F.
Page 2 of 4
05/13/2024 09:26 AM tlawrenc
5. Untwist pins 6F and 6H (straighten) and reinstall them into connector 0920-101F.
NOTE: You may need to remove about 1/2 of the insulation to give more flexibility/slack.
6. Pull on pins 6F and 6H to confirm they are locked and secured.
NOTE: If the harness connector cannot be repaired, replace the Instrument Panel Harness.
7. Confirm paint mark (A) alignment.
8. Clear any DTC's.
PIN 6F is backed out
PIN 6F is untwisted and repaired
9. Did the Instrument Panel Harness, connector 0920-101F repair resolve the concern?
• Yes - Repair completed
• No - Swap the remote tuner with good known vehicle. Is the audio sound recovered?
Yes - Replace the remote tuner.
No - Swap the audio amp with good known vehicle. Is the audio sound recovered?
Yes - Replace the audio amp.
No - Replace the Instrument Panel Harness
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Page 3 of 4
05/13/2024 09:26 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.
• Replace Instrument Panel Harness
• Replace Remote Tuner
• Replace Audio Amp
Repair Instrument Panel Harness
connector 0920-101F
Warranty Type
A
Symptom Code
56
Damage Code
9T
Part Number Main Cause
Quantity
Operation Number / Labor Hours:
5555-22-008A
Submit a normal
warranty claim
0
YY832XRX / 0.5 Hrs
Page 4 of 4
05/13/2024 09:26 AM tlawrenc
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TSB/Document ID: SA-021-24a
Replacement Service Bulletin Number:
MFR Communication Date: 2024-05-07
MFR Internal Campaign ID/Software Version:
Communication Type: Other
NHTSA Components: STRUCTURE:BODY
MFR Component System:
MFR Component Subsystem: audio system
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