Popping/Crackling From The Speakers; Display Blank

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NHTSA ID Number: 10198183

Manufacturer Communication Number: B20-031

Summary

Service Bulletin – There is a popping or crackling from the speakers, a blank display, or no sound from the audio system. You may also see a Network Loss message.

1 Affected Product

Vehicle

MAKE	MODEL	YEAR

ACURA	RDX	2021

SYMPTOM

There is a popping or crackling from the speakers, a blank display, or no sound from the audio system. You may also see a Network Loss message.

POSSIBLE CAUSE

There is a loose connection in the MOST bus network.

CORRECTIVE ACTION

Install the FAKRA connector set.

PARTS INFORMATION

TOOL INFORMATION

Tool Name	Part Number	Quantity
Straight FAKRA Puller	07AAC-THRA200	1

INSPECTION PROCEDURE

1. Turn the ignition to ON, and on the touch pad, press and hold the Back, Home, and Cards List buttons at the same time. Hold until the Dealer Diagnostics menu screen appears in the primary information area. You will hear a tone when you release the buttons.

2. Using Touchpad A, select DETAIL INFORMATION & SETTING

3. Scroll down the menu, and select SHUTDOWN REASON.

In this example, the cause of the failure can be identified as Meter:SUDDEN_SIGNAL_OFF.

4. Write down any failures as they will be collected on the warranty claim. Then, clear the data.

REPAIR PROCEDURE

1. Remove the dash side panel and air vent.

2. Remove the two screws.

3. Remove the lower trim, and disconnect the switch connectors and in-car temp sensor.

4. Remove the lower center cover to expose the infotainment unit.

5. Remove the two tie down hooks on the passenger side, then remove the load floor strip.

6. Remove the cargo floor lid, cargo bin, then the rear trim panel.

7. Remove the bolt from the rear seat cushion.

8. While pushing down on the rear seat cushion, pull the seat hook handles to release the hooks.

9. Pull back the seat cushion to pull the seat belt buckles from the slits in the seat cushion.

10. With rear seat heaters: Disconnect the connectors.

11. Remove the rear seat cushion.

12. Remove the lower trim.

13. Remove the rear passenger seat hinge cover by lifting it up.

14. Remove the inner handle cap.

15. Pull back and remove the lower side trim panel.

16. Remove the two screws.

17. Using a rubber mallet, apply a light blow to disengage the quarter pillar trim clip (a must-replace part). Then, remove the quarter pillar trim. Once it is removed, install a new quarter pillar trim clip.

18. With rear speaker: Disconnect the rear speaker from the upper quarter pillar trim.

19. Disconnect the red and green MOST connectors at the infotainment, stereo amplifier, and tuner units using the straight FAKRA puller.

NOTE: To avoid mixing up the wires, remove only one FAKRA connector at a time.

20. Using a small flat-tip screwdriver, remove the secondary lock, then break off the tab as shown.

21. Pull and twist counterclockwise to remove the housing from the wire. Then, discard the housing and lock.

22. Select the correct color FAKRA housing, then slide the new terminal onto the wire until it clicks into place.

23. Line up the locking tabs of the FAKRA housing to the new terminal, then slide the new terminal into the housing until it clicks.

24. Repeat steps 20 thru 23 for the other connectors. Then, install the MOST connectors to the infotainment, amplifier, and tuner units.

25. Install all the removed parts in the reverse order of removal. When installing units, make sure the harness is routed correctly because a misrouted harness can put pressure on the connectors, which can cause a connection issue. Do not pull on the units or MOST feeders while the FAKRA connectors are connected.

26. Test-drive the vehicle to confirm the repair.

NHTSA ID Number: 10186937

Manufacturer Communication Number: B20-001

Summary

Service Bulletin – Center Display Unit Stays On with Ignition Turned to OFF and Door Open

1 Associated Document

Manufacturer Communications

B20-001
February 6, 2021
Version 2

https://www.nhtsa.gov/recalls?nhtsaId=10186937

MC-10186937-0001.pdf 21.102KB

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NHTSA ID Number: 10186938

Manufacturer Communication Number: B20-031

Summary

Service Bulletin – There is a popping or crackling from the speakers, a blank display, or no sound from the audio system. You may also see a Network Loss message, the center display staying on after turning the vehicle to the OFF mode with the door open, or the disclaimer message stuck on.

1 Associated Document

Manufacturer Communications

B20-031
February 6, 2021
Version 4

https://www.nhtsa.gov/recalls?nhtsaId=10186938

MC-10186938-0001.pdf 2813.371KB

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NHTSA ID Number: 10187295

Manufacturer Communication Number: B20-031

Summary

1 Associated Document

Manufacturer Communications

A20-031
February 10, 2021
Version 5

https://www.nhtsa.gov/recalls?nhtsaId=10187295

MC-10187295-0001.pdf 2811.267KB

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NHTSA ID Number: 10187542

Manufacturer Communication Number: B20-031

Summary

1 Associated Document

Manufacturer Communications

B20-031
February 18, 2021
Version 6

https://www.nhtsa.gov/recalls?nhtsaId=10187542

MC-10187542-0001.pdf 2944.364KB

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1 Associated Document

Manufacturer Communications

B20-031
June 17, 2021
Version 7

https://www.nhtsa.gov/recalls?nhtsaId=10198183

MC-10198183-0001.pdf 3467.277KB

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Part Name	Quantity	Part Number
Rear Pillar Trim Clip	1	91561-TA5-A11
FAKRA Connector Set	3	39817-TJB-AC0

Popping/Crackling from the Speakers; Display Blank – 2021 Acura RDX

Summary

INSPECTION PROCEDURE

REPAIR PROCEDURE

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