Classification:

Reference:

Date:

EL12-064c

ITB12-062c

November 12, 2013

WITHOUT NAVIGATION SYSTEM
HANDS-FREE PHONE POOR SOUND QUALITY
This bulletin has been amended. Changes have been made to the Parts Information table only.
Please discard previous versions of this bulletin.

APPLIED VEHICLES: 2011 – 2013 M37, M56 and M Hybrid (Y51 & HY51)
2013 JX35 (L50)
2010 – 2012 FX35 and FX50 (S51)
2010 – 2012 EX35 (J50)
2010 – 2012 G25 and G37 Sedan, Coupe, and Covertible
(V36, CV36, & HV36)

Without
navigation system

IF YOU CONFIRM
The customer reports (or has previously reported) that people on the other end of a phone call cannot hear
them.
Customer report may include:
•

Voice is choppy or cuts out.

•

Voice sounds distant.

•

Voice sounds as if speaking through a tunnel.

•

Voice sounds like it is under water.

ACTION
1. Replace the TEL Adaptor Unit / Bluetooth® Control Unit.
2. Replace the microphone and map lamp finisher.

IMPORTANT: The purpose of “ACTION” (above) is to give you a quick idea of the work you will be performing.
You MUST closely follow the entire Service Procedure as it contains information that is essential to successfully
completing this repair.
Infiniti Bulletins are intended for use by qualified technicians, not ‘do-it-yourselfers’. Qualified technicians are properly trained
individuals who have the equipment, tools, safety instruction, and know-how to do a job properly and safely. NOTE: If you believe
that a described condition may apply to a particular vehicle, DO NOT assume that it does. See your Infiniti dealer to determine if this
applies to your vehicle.
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PARTS INFORMATION
DESCRIPTION

MODEL

VARIATION

PART NUMBER

QUANTITY

Microphone

All

NA

28336 – 1VU0A

1

M

NA

28388 – 3WY0A

1

G

NA

28383 – 3WY1A

1

EX

NA

28383 – 3WY1A

1

FX

NA

28383 – 3WY1A

1

JX

NA

28383 – 3JA0B

1

Beige
without E-CALL SW

26434 – 1PM0A

Beige
with E-CALL SW

26434 – 1PM2A

Black
with E-CALL SW

26434 – 1PM2B

TEL Adaptor Unit

Bluetooth
Control Unit

M
JX
Map Lamp Finisher
G
FX
EX

Beige
without sunroof
Beige
without sunroof
Beige
with sunroof

1

26437 – 3LZ0A
1

26437 – 3LW0A
26437 – 3LZ5A

CLAIMS INFORMATION
Submit a Primary Part (PP) type line claim using the following claims coding:
PFP

OP CODE

SYM

DIA

FRT

M

DESCRIPTION
Hands-Free Phone - Repair
(Without Navigation, And:
With Sunroof

28336 - 1VU0A

RX2QAA

ZE

32

0.5 hrs.

FX

With Sunroof

28336 - 1VU0A

RX2QAA

ZE

32

0.9 hrs

EX

With Sunroof
Without Sunroof

28336 - 1VU0A
28336 - 1VU0A

RX2QAA
RX2RAA

ZE
ZE

32
32

0.7 hrs
2.0 hrs

JX

With Sunroof

28336 - 1VU0A

RX2QAA

ZE

32

0.9 hrs.

G37

Convertible

28336 - 1VU0A

RX2RAA

ZE

32

0.7 hrs.

G25 / G37
Sedan

With Sunroof
Without Sunroof

28336 - 1VU0A
28336 - 1VU0A

RX2QAA
RX2RAA

ZE
ZE

32
32

1.1 hrs
1.9 hrs.

With Sunroof

28336 - 1VU0A

RX2QAA

ZE

32

0.8 hrs.

Without Sunroof

28336 - 1VU0A

RX2RAA

ZE

32

1.2hrs.

MODEL

G37 Coupe

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ITB12-062c

SERVICE PROCEDURE
1. Replace the TEL Adaptor Unit / Bluetooth® Control Unit.
•

Refer to the AV section in the appropriate Service Manual for replacement information.

2. Replace the Microphone.
•

Select and use the appropriate instructions from the following:

For G37 Convertible:
•
•
•

Refer to the AV section in the appropriate Service Manual for microphone replacement information.
Make sure to use the new microphone listed in the Parts Information.
Make sure to use the new map lamp finisher listed in the Parts Information.
IMPORTANT: Make sure the new microphone is firmly snapped into place. If the microphone is loose,
it could pick up extra noise from an unintended source.

For Applied Vehicles without a sunroof:
•
•
•

Refer to the AV section in the Service Manual for microphone replacement information.
Make sure to use the new microphone listed in the Parts Information.
Make sure to use the new map lamp finisher listed in the Parts Information.
IMPORTANT: Make sure the new microphone is firmly snapped into place. If the microphone is loose,
it could pick up extra noise from an unintended source.

For Applied Vehicles with a sunroof:
•
•
•

Use the Microphone Replacement Instructions below.
Make sure to use the new microphone listed in the Parts Information.
Make sure to use the new map lamp finisher listed in the Parts Information.

MICROPHONE REPLACEMENT INSTRUCTIONS (with sunroof)

NOTE: The photos used in this section are of a M37/56. These photos are also representative (similar)
for all other applied vehicles with sunroof.

1. Turn the ignition OFF.

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ITB12-062c

Roof console
assembly
2. Remove / snap loose the map lamp finisher
shown in Figure SR1.
• Use a plastic trim tool as needed.
Map lamp finisher
Figure SR1
Microphone

3. Remove the microphone from the map lamp
finisher.
Map lamp
finisher
Figure SR2
4. Fully open (slide back) the sunroof.
5. Carefully snap loose the headlining along the front of the sunroof opening at the 3 spots shown in Figure
SR3.
Snap loose here

Figure SR3
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ITB12-062c

Roof
console

6. Push the microphone through the roof
console so it is above the headlining.

Push microphone
above headlining
Figure SR4

7. Remove both sun visor holders – twist ¼ turn to remove.

Sun visor holders

Figure SR5

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ITB12-062c

8. Carefully pull the headlining down just enough to look in and locate the microphone connector.
CAUTION: Be careful not to crease the headlining.
Look in here for the
microphone connector

Figure SR6
9. Carefully slide the connector to the right (towards the passenger side)
to disengage it from its mount.
• It may be tight on the mount, but it just slides to the right to disengage.
CAUTION: Be careful not to crease the headlining.

Slide connector to right

Microphone connector

Figure SR7

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ITB12-062c

10. Carefully reach in above the headlining and pull out the microphone.
CAUTION: Be careful not to crease the headlining.

11. Disconnect the old microphone and discard.

Connector
Carefully reach in here and
pull out the microphone

Microphone

Figure SR8

12. Install the new microphone in reverse order.
•

Make sure to use the new microphone listed in the Parts Information.

•

Make sure to use the new map lamp finisher listed in the Parts Information.

IMPORTANT: Make sure the microphone is firmly snapped into place. If the microphone is loose, it could
pick up extra noise from an unintended source.
CAUTION: Be careful not to crease the headlining.

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ITB12-062c