Warranty Extension: 2019-2020 Honda Passport/Pilot MOST Bus Network Connectors

NHTSA ID Number: 10187526

Manufacturer Communication Number: A21-012

Summary

Service Bulletin – A loose connection in the MOST bus network is causing a popping or crackling from the speakers or no sound from the audio system. You may also see a Network Loss message and/or display issues.

AFFECTED VEHICLES

Year	Model	Trim Level	VIN Range
2019-20	Passport	ALL except Sport	Check the iN VIN status for eligibility.
2019-20	Pilot	ALL except LX	Check the iN VIN status for eligibility.

BACKGROUND

A loose connection in the MOST bus network is causing a popping or crackling from the speakers or no sound from the audio system. You may also see a Network Loss message and/or display issues.

American Honda is extending the warranty for the MOST bus network connectors on these vehicles to 5 years or 60,000 miles from the original date of purchase, whichever comes first.

CUSTOMER NOTIFICATION

Owners of affected vehicles will be sent a notification of this campaign.

Do an iN VIN status inquiry to make sure the vehicle is shown as eligible.

CORRECTIVE ACTION

Install the FAKRA connector set and the MOST service cords.

PARTS INFORMATION

NOTE: When ordering the MOST service cords, you may get an alternate part number where the first character of the last three are different, such as AA0, AB0, AC0, and AD0 or BA0, BB0, BC0, and BD0. Either part number is correct. 2019-20 Passport (EX-L)

Part Name	Part Number	Quantity
FAKRA Service Housing	39817-TJB-AC0	2
MOST Service Cord TX Straight (Green)	39165-TG7-AC0	1
MOST Service Cord RX Straight (Red)	39165-TG7-AD0	1

2019-20 Passport (Elite, Touring)

Part Name	Part Number	Quantity
FAKRA Service Housing	39817-TJB-AC0	3
MOST Service Cord TX Straight (Green)	39165-TG7-AC0	1
MOST Service Cord RX Straight (Red)	39165-TG7-AD0	1

2019-20 Pilot (EX, EX-L)

Part Name	Part Number	Quantity
FAKRA Service Housing	39817-TJB-AC0	2
MOST Service Cord TX Straight (Green)	39165-TG7-AC0	1
MOST Service Cord RX Straight (Red)	39165-TG7-AD0	1

2019-20 Pilot (EX, EX-L with accessory CD player, EX-L-RES)

Part Name	Part Number	Quantity
FAKRA Service Housing	39817-TJB-AC0	3
MOST Service Cord TX 90 Degree (Green)	39165-TG7-AA0	1
MOST Service Cord RX 90 Degree (Red)	39165-TG7-AB0	1
MOST Service Cord TX Straight (Green)	39165-TG7-AC0	1
MOST Service Cord RX Straight (Red)	39165-TG7-AD0	1

2019-20 Pilot (Black Edition, Elite, Touring)

Part Name	Part Number	Quantity
FAKRA Service Housing	39817-TJB-AC0	4
MOST Service Cord TX 90 Degree (Green)	39165-TG7-AA0	1
MOST Service Cord RX 90 Degree (Red)	39165-TG7-AB0	1
MOST Service Cord TX Straight (Green)	39165-TG7-AC0	1
MOST Service Cord RX Straight (Red)	39165-TG7-AD0	1

TOOL INFORMATION

NOTE: The tool listed below is a required tool that should be in your dealer inventory. Order additional tools only if your tools are damaged and need replacement.

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

INSPECTION PROCEDURE

Turn the ignition to ON.

Press and hold the VOL/Power AUDIO knob, DAY/NIGHT icon, and HOME icon at the same time. Hold until the Dealer Diagnostics menu screen appears.

Select DETAIL INFORMATION & SETTING.

Scroll down the menu, and select SHUTDOWN REASON.

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

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

REPAIR PROCEDURE – PASSPORT

Remove the side cover.

Loosen the upper column cover.

Remove the lower dash panel.

Remove the screw to loosen the dash panel.

Pull back the dash panel to allow meter bezel removal.

Disengage the clips around the meter bezel, then remove the bezel and upper column cover as one piece.

Turn the gauge control module to access the rear connectors. Then, using the straight FAKRA tool, disconnect the red and green FAKRA connectors, and remove them from the gauge control module. Do not pull on the units or MOST service cords while the FAKRA connectors are connected to help prevent communication issues.

NOTE: For more information on using the FAKRA tools, see the job aid Using the MOST Connector Tools.

Remove the hazard switch panel.

Remove the passenger mid dash panel.

Remove the two screws, then remove the dashboard center middle trim.

Remove the two screws and bolts, then remove the dashboard center lower panel or accessory CD player.

Loosen the two bolts holding the infotainment unit, then remove the unit.

NOTE: For the EX-L trim level, go to step 16. For the Touring and Elite trim levels, go to step 13.

Remove the rear cargo cover, cargo tray, rear panel, and spare tire.

Remove the rear passenger door trim.

Remove the three screws and one clip from the quarter panel, then remove the panel.

Disconnect the red and green FAKRA connectors at the gauge control module, infotainment unit, and tuner unit (Touring, Elite), using the straight FAKRA puller. Do not pull on the units or MOST service cords while the FAKRA connectors are connected to help prevent communication issues.

NOTE: Disassemble the connectors one at a time to avoid swapping the green and red wires.

Using a small screwdriver, remove the secondary lock, then break off the tab as shown. Then, discard the housing and lock.

Pull and twist counterclockwise to remove the housing from the wire.

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

Line up locking tabs of the FAKRA housing to the new terminal, then push in the terminal until it clicks into place.

Repeat steps 17 thru 20 for the other connectors. Then, install the FAKRA connectors to the infotainment unit and tuner unit.

Install the MOST service cord between the dash harness and gauge control module (straight connector at both ends). Then, install the FAKRA connectors to the gauge control module.

Install all of 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 service cords while the FAKRA connectors are connected to help prevent communication issues.

Test-drive the vehicle to confirm the repair. If the repair was not successful after the updated connectors are installed, continue with normal troubleshooting based on customer symptom(s).

REPAIR PROCEDURE – PILOT

Remove the side cover.

Loosen the upper column cover.

Remove the lower dash panel.

Remove the screw to loosen the dash panel.

Pull back the dash panel to allow the meter bezel removal.

Disengage the clips around the meter bezel, then remove the bezel and upper column cover as one piece.

Turn the gauge control module to access the rear connectors. Then, using the straight FAKRA tool, disconnect the red and green FAKRA connectors, and remove them from the gauge control module. Do not pull on the units or MOST service cords while the FAKRA connectors are connected to help prevent communication issues.

Remove the hazard switch panel.

Remove the passenger mid dash panel.

Remove the two screws, then remove the dashboard center middle trim.

Remove the two screws and bolts to remove the DVD player.

NOTE: Some trim levels will have a CD player or dashboard center lower panel.

Loosen the two bolts holding the infotainment unit, then remove the unit.

For EX and EX-L trim levels, go to step 20. For Touring, Elite, and Black Edition trim levels, go to step 13.

Remove the rear cargo trim panel.

Remove the aluminum support brace by removing the two bolts.

Remove the two rear bolts for the right third row seat.

Remove the third row lower seat cushion by removing the three bolts.

Remove the two front bolts for the passenger third row seat-back.

Remove the passenger door lower trim.

Remove the four bolts securing the right quarter panel.

Disconnect the red and green FAKRA connectors at the gauge control module, infotainment unit, DVD player (if equipped), and tuner unit (Touring, Elite) using the straight FAKRA puller. Do not pull on the units or MOST service cords while the FAKRA connectors are connected to help prevent communication issues.

NOTE: Disassemble the connectors one at a time to avoid swapping the green and red wires.

Using a small screwdriver, remove the secondary lock, then break off the tab as shown. Then, discard the housing and lock.

Pull and twist counterclockwise to remove the housing from the wire.

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

Line up the locking tabs of the FAKRA housing to the new terminal, then push in the terminal until it clicks into place.

Repeat steps 21 thru 24 for the other connectors.Then, connect the FAKRA connector to the infotainment unit and tuner unit.

Install the MOST service cord between the dash harness and the gauge control module (straight connectors at both ends). Then, install the FAKRA connectors to the gauge control module.

Trim levels with CD or DVD player: Install the MOST service cord between the dash harness and the CD or DVD player (straight connector to the dash harness and the 90 degree connector to the CD or DVD player). Then, install the FAKRA connectors to the CD or DVD player.

Install all of the removed parts in the reverse order of removal. When installing units, make sure the harness is routed correctly, as a misrouted harness can put pressure on the connectors, which may cause a connection issue. Do not pull on the units or MOST service cords while the FAKRA connectors are connected to help prevent communication issues.

Test-drive the vehicle to confirm the repair. If the repair was not successful, continue with normal troubleshooting based on customer symptom(s).

END

4 Affected Products

Vehicles

MAKE	MODEL	YEAR

HONDA	PASSPORT	2019-2020
HONDA	PILOT	2019-2020

1 Associated Document

Manufacturer Communications

A21-012
February 18, 2021
Version 1

https://www.nhtsa.gov/recalls?nhtsaId=10187526

MC-10187526-0001.pdf 5938.346KB

⬇ Download PDF (5.66 MB)

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