NHTSA ID Number: 10249631
Manufacturer Communication Number: B24-004
TSB/Document Date: 2024-02-03
Summary
Service Bulletin - There is a popping or crackling from the speakers, a blank display, or no sound from the audio system due to a a loose connection in the MOST bus network. You may also see a Network Loss message.
If the PDF is very large, it may not load in the preview below.
Some older TSBs had multiple PDFs — visit the NHTSA Website to view all PDFs.
If the TSB PDF does not show, download or view it on the NHTSA Website.
Click on the (+) Plus Sign
Then Click on Associated Document(s)
- 💝【Questions? We’re Here Anytime】MK808S is a...
- 🔥🔥🔥【2026 NEWLY RELEASED BI-DIRECTIONAL...
- 【28+ MOST POPULAR RESET SERVICE FOR 150 MAKES】Autel...
- 【ALL SYSTEM DIAGNOSTICS, FACTORY-LEVEL SCANNER】The...
- 【AUT0 SCAN & AUT0V1N, 10X FASTER】How much have you spent...
- 💯【Conta.ct us for Support Directly】If you met any...
- 🔥🔥🔥【2026 AUTEL FLAGSHIP MK900BT MK900-BT, NEW...
- 🚗【3000+ ACTIVE TESTS (50➡3000+), SAME AS MS...
- 🚗【40+ HOT SERVICES FOR 150 MAKES (28+➡40+)】Full...
- 🚗【OE ALL SYSTEM DIAGNOSE, AUTO SCAN 2.0: SCAN LICENSE...
This product presentation was made with AAWP plugin.
Search NHTSA Database for Recalls
Search NHTSA Database for Vehicle Investigations
View Latest Vehicle Investigations
Search NHTSA Database for Vehicle Complaints
View Latest Vehicle Complaints
TSB/Document ID: B24-004
Replacement Service Bulletin Number:
MFR Communication Date: 2024-01-31
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: EQUIPMENT:ELECTRICAL:INFOTAINMENT
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
Service Bulletin
January 31, 2024
24-004
Version 1
Popping/Crackling from the Speakers; Display Blank
AFFECTED VEHICLES
Year
Model
Trim Level
VIN Range
2022–24
RDX
ALL
ALL
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 splice repair service cables and splice boxes.
PARTS INFORMATION
Part Name
Part Number
Quantity
Splice boxes
39817-THR-305
2 Splice boxes (4 Halves)
FAKRA splice repair service cable (Blue)
39165-THR-AC0
2
Tool Name
Tool Number
Quantity
Straight FAKRA Puller
07AAC-THRA200
1
TOOL INFORMATION
NOTE: For more information on using the FAKRA tools see the job aid: Using the MOST Connector Tools.
CLIENT INFORMATION: The information in this bulletin is intended for use only by skilled technicians who have the proper tools, equipment, and
training to correctly and safely maintain your vehicle. These procedures should not be attempted by “do-it-yourselfers,” and you should not assume
this bulletin applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an
authorized Acura
automobile dealer.
© 2024 American Honda
Motor Co., Inc. – All Rights Reserved
Page 1 of 13
WARRANTY CLAIM INFORMATION
The normal warranty applies.
Operation
Number
Description
Flat Rate
Time
Defect
Code
Symptom
Code
Template
ID
Failed Part Number
0101T5
Access the center
console and
passenger kick panel
in-line connectors,
then replace the
affected FAKRA splice
repair service cables,
and splice boxes.
1.1 hr
03214
03217
B23038A
39540-TJB-A01
Skill Level: Repair Technician
FAKRA CONNECTOR HOUSING DISASSEMBLY/FAKRA SPLICE REPAIR SERVICE CABLE ASSEMBLY
PROCEDURE
1.
Follow the below steps to better understand the cable and splice box installation instructions.
2. The connectors will either be the original FAKRA housing or the WPC FAKRA service
housing.
NOTE:
There may be multiple components that require the affected FAKRA connectors to be removed.
Use the straight FAKRA puller to remove the connector from a component.
ORIGINAL FAKRA HOUSING REMOVAL PROCEDURE
1.
Use a small screwdriver, remove the secondary lock, then release the tab as shown.
2.
Pull to remove the housing from the vehicle harness. Then, discard the housing and lock.
Page 2 of 13
WPC FAKRA SERVICE HOUSING REMOVAL PROCEDURE
1. Release the two locking tabs on the WPC FAKRA service housing and remove the housing from the terminal.
2. Release the lock tab and remove the terminal from the vehicle harness.
FAKRA SPLICE REPAIR SERVICE CABLE ASSEMBLY
1. Install the appropriate FAKRA splice repair service cables and splice boxes as shown in the steps that follow:
NOTE:
The splice box arrow must always point in the direction of either the red flag label or red sleeve on the
FAKRA splice repair service cable.
If the splice box is installed incorrectly, the repair will fail; MOST ring failure conditions will still occur.
Some vehicles may not use the 90° FAKRA splice repair service cables.
Page 3 of 13
2. Use a small screwdriver to remove the secondary lock and then, release the tab.
3. Pull to remove the housing form the cable and then discard the housing and secondary lock tab from the FAKRA
splice repair service cable.
4. Connect the appropriate color FAKRA splice repair service cable to the vehicle harness.
NOTE:
Make sure the FAKRA service cable is inserted straight into the vehicle harness terminal to avoid damage at
the cable connection point.
Always disassemble the connectors one at a time to avoid swapping the green and red wires.
5. Attach the splice box halves to the cable connection.
Page 4 of 13
6. When mating the two splice box halves, make sure that all 6 lock tabs are fully engaged. You may hear a click when
installing the two halves.
NOTE:
The splice box arrow must always point in the direction of the red flag label or red sleeve on the FAKRA
splice repair service cable.
The splice box is a one-time use part; Never reuse the splice box after it has been installed.
If any of the lock tabs break during installation, the splice box halve(s) must be replaced.
If the splice box is installed incorrectly, the repair will fail; MOST Ring failure conditions will still occur.
7. Make sure the arrow on the splice box faces towards the red flag label or red sleeve.
NOTE: Do not spin the splice box or the cables as this can cause damage to the connection point.
Page 5 of 13
8. Once the FAKRA splice repair service cables and splice boxes have been attached to the cable connection, tape
the splice boxes and FAKRA service cables to the appropriate component harness.
NOTE: Reference below for a correct example of the cable connection routing.
NOTE: Make sure the FAKRA splice repair service cables are not bent at connector(s), as shown below.
Page 6 of 13
REPAIR PROCEDURE
TRIM REMOVAL PROCEDURE
1. Remove the dash side panel and air vent.
2.
Remove the two screws.
Page 7 of 13
3. Remove the lower trim and disconnect the switch connectors and in-car temperature sensor.
4. Remove driver’s side wrapped trim.
5. Remove the driver side center console panel.
Page 8 of 13
6. Remove the lower center cover to expose the infotainment control unit.
7. Remove the passenger kick panel.
8. Remove the passenger side center console cover.
Page 9 of 13
9. Remove the passenger side wrapped trim.
NOTE: Lower the glove box for removal of trim.
10. Remove the center console rear panel.
11. Remove the center console.
Page 10 of 13
CENTER CONSOLE IN-LINE CONNECTOR REPAIR PROCEDURE
1. Disconnect the blue FAKRA connector at the center console.
2. Install the matching color FAKRA splice repair service cable and splice box.
NOTE:
See the above section FAKRA Connector Housing Disassembly/FAKRA Splice Repair Service Cable
Assembly Procedure for detailed instructions.
The splice box arrow must always point in the direction of the red flag label or red sleeve on the FAKRA
splice repair service cable.
The splice box is a one-time use part; never reuse the splice box after it has been installed.
If any of the lock tabs break during installation, the splice box halve(s) must be replaced.
If the splice box is installed incorrectly, the repair will fail; MOST Ring failure conditions will still occur.
3. Tape the FAKRA splice repair cable and splice box to the in-line harness.
4. Reconnect the blue in-line FAKRA connector.
Page 11 of 13
PASSENGER KICK PANEL IN-LINE CONNECTOR REPAIR PROCEDURE
1. Disconnect the blue FAKRA connector at the passenger side kick panel.
2. Install the matching color FAKRA splice repair service cable and splice box.
NOTE:
See the above section FAKRA Connector Housing Disassembly/FAKRA Splice Repair Service Cable
Assembly Procedure for detailed instructions.
The splice box arrow must always point in the direction of the red flag label or red sleeve on the FAKRA
splice repair service cable.
The splice box is a one-time use part; never reuse the splice box after it has been installed.
If any of the lock tabs break during installation, the splice box halve(s) must be replaced.
If the splice box is installed incorrectly, the repair will fail; MOST Ring failure conditions will still occur.
Page 12 of 13
3. Tape the FAKRA splice repair cable and splice box to the in-line harness.
4. Reconnect the blue in-line FAKRA connector.
REPAIR VERIFICATION PROCEDURE
1. Install all of the removed parts in the reverse order of removal.
NOTE:
When reinstalling components, make sure the harness is routed correctly. A misrouted harness can
put pressure on the wires and connectors, causing connection issues.
Do not pull on the units or MOST cables while the FAKRA connectors are connected to help
prevent communication issues.
2. Start the vehicle and verify the gauge control module and the infotainment control unit operates normally, then push
the power button OFF. Open and close the driver’s door and restart the vehicle to reverify the gauge control module
and the infotainment control unit operates normally. If all systems operate normally, repair is complete.
3. If components do not operate as intended, reinspect FAKRA splice repair service cables, splice box connections
and routing. Make sure the splice box arrow is pointing to the red flag label or red sleeve on the FAKRA splice box
service cable.
NOTE: If all FAKRA splice repair service cables, splice box connections, and routing are correct, follow
normal troubleshooting procedures per System Information Search on iN.
Page 13 of 13
- WHY CHOOSE THE 2025 CR MAX -Upgrade the latest diagnostic capabilities for all vehicles after 1996: upgrade to 49+maintenance services; 46 extra specific functions; real all systems/all control modules diagnose; over 40K+ bidirectional actuation tests for diagnosing all control moduels of cars; Powerful full OBD2 Functions; built-in ECU Coding for BMW
/ Audi
/ VW
/ RollsRoyce; Fr ee V.A.G Guide Function; Battery retistration for new battery adaptation and more. It covers all vehicle diagnostic services and some special professional vehicle maintenance servces, assists you to do home DIY vehicle maintenance or car repair as a pro technician. - NEWEST IN INNOVATION FULL OBD2 SERVICES- iCarsoft auto car diagnostic scanner compatible with CAN-FD, CR MAX can do it all-reads and clears trouble codes, ALL SYSTEM DIAGNOSIS such as engine, transmission, ABS and airbag etc. CR MAX code reader for all cars can perform I/M Readiness, Live Data, Freeze Frame, Vehicle Information, Monitor Test, On-Board Monitor, E vap System Test,O2 Sensor Test,DTC Library Lookup,etc. (Warm Tips: If you car is after 2023,please contact us for compatibility; 3. It comes with 16PIN OBD2 diagnostic adapter, please check your car diagnostic socket if it is 16pin socket, if your car is 14pin diagnostic socket please contact us for the solution.)
- 49 RESET+ 46 SERVICES- Performs: Oil Reset, EPB,SAS,Throttle, D-P - F, Battery, ABS, Injector, TPMS, Suspension, AC, Head Lamp, Body Stablity, Engine, Tramsmission, Airbag, Seat, Door-Win-Roof, Fuel Pump, Door, E-G- R.+21 NEWEST SERVICES( Need update scanner)-AdBlue, Clutch, Crankshaft, High Voltage Battery
, Cruise Control, NO xSensor, Rain Sensor, Stop And Start, Turbocharger, Head Up Display, Radar Camera, Vehicle Setup, Cyliner Misfire Check,Speedlimitassist, ControlUnitReset,OxygenSensor, Seatbelt. Extra 46+ extra services based on car brand.(Tips: Quantity of reset/ calibration fucitons are based on car system that your vehicle model has) - REVOLUTIONARY 40000+BIDIRECTIONAL ACTIVE TESTS: Upgraded CR Max scanner equip with numberous of actuational test items for covering all available vehicle control modules, no longer only do simple light test or window test like other scanners, performs hardware modules test and software control modules test for checking car units or new updated control moduels work well or not after maintenance/ repair/ re-installation/ control system updated (Example for Benz- Roller Sun Blind test; Backup Camera test ;Self-test; EPB test; Transport Mode test;Boost Pressure Positioner test; Fuel Pump test; AND MORE!!).(Warm tip: The available test items are based on control modules your car has)
- ECU CODING+ BATTERY REGISTRATION- Powerful ECU Coding service for BMW
/MINI
/RollsRoyce / Audi
/VW
/Seat/Skoda/Bentley
/Bugatti
/Lamborghini
, Improves Engine Power Performance and Optimizes Fuel Efficiency and Match New Hardware Unit to car and Customized a comfortable Driving Modes and Fixes & Updates Original Software Bug. The battery test function for checking car battery health, perform battery reset (BMS ) for replacing a damaged or aging car battery with a new one and register new battery to car ECU
- Scanner POR V2.0 with all obd2 services
- Do the scanning for engine
- Support OBDII/EOBD Ten Modes of Operation
- 【Designed for Most Mercedes-Benz
, Sprinter
and Smart from 1996-2023】As every car model of Benz has its-owned specific car system and ECUs, not all models are equipped with a complete vehicle ECU, which may cause the scanner to be unable to perform all listed reset services on some models, or even completely incompatible. Like For Sprinter
's newer models, it support diagnostic functions only, lacking support for specialized service functions.. So please tell us the car's VIN and required service before purchase for compatibility check. You may also refer to the instructions in the eighth image of the main product photos to perform your inquiry. - 【Up to 38 Reset Services】MB V3.0 2026 Version diagnostic tool performs Up to 38 maintenance services - Oil Rest , SAS, EPB, ETC, D-P-F, TPMS, ABS, Suspension, Air Conditioner, Head Lamp, Body Stability, Engine Control, Seat, Fuel Pump, Air-Filter, Engine Idle, Door, Im-mo-bilizer, Injector Coding, Transmission Control, Miscellaneous, Adblue, BMS, Cluth, Water Pump, NOxSensor, Rain/Light Sensor, Start/Stop, Radar/Camera, Cylinder Shutoff Test, Speed Limit Assist, Control Unit Reset, Oxygen Sensor, Seat Belt, Cruise Control System, Turbocharger, Crankshaft, Language Setting and etc. (Tips: Please update the software after receiving the product to obtain new service functions)
- 【OE-Level All System OBD2 Scanner】iCarsoft MB V3.0 (2026 Version) diagnostic scanner offers comprehensive OBDII services, allowing you to quickly scan all systems, including the Engine, ABS, SAS, SRS, TPMS, TCM, Fuel Pump System, ESP, EPB, EPS, Suspension, SCM, Adaptive Systems, and more. It supports functions such as reading and erasing codes, checking I/M readiness, viewing freeze frame data, performing O2 sensor tests, conducting on-board monitoring, testing the evap system, auto VIN retrieval, and reading both generic and specific codes, as well as DTCs and battery tests.
- 【Bidirectional Scan Tool】iCarsoft MB V3.0 (2026 Version) Bidirectional scanner supports activate or control a vehicle system or component, allows commanding cars’ modules and receiving info from the ECU to perform active tests on individual components, including EVAP/ABS Motor Pump/Windows/Sunroof and more, to pinpoint fault causes & resolve issues,and allows you to re-learn certain components after making repairs or replacement.
- 【Real Time Record & Graph View】iCarsoft MB V3.0 (2026 Version) can automatically record vehicle text history and identify vehicle information. Preserve real-time data information. View & Graph Live Data. Support Data Review and Print. Multi-language: English, German, Dutch, Spanish, French and so on. We promise to offer Lifetime updates (Lifetime free Update via PC), and confidence in products. We also provide 1 year warranty + extra lifetime hardware free repair if you need it in the future. We prioritize user experience & strive to meet your expectations. Please do feel free to reach out to us if you have any question or problem about the usage, our tech team will service you in time.
This product presentation was made with AAWP plugin.
Last update on 2026-05-12 / Affiliate links / Images from Amazon Product Advertising API




