Classification:

Reference:

EL18-035a

Date:

NTB19-004a

November 1, 2019

2015-2019 MURANO AND 2016-2019 TITAN;
CLIMATE CONTROLLED SEAT INOPERATIVE
This bulletin has been amended. See AMENDMENT HISTORY on the last page.
Please discard previous versions of this bulletin.

APPLIED VEHICLES:
APPLIED SYSTEM:

2015-2019 Murano (Z52)
2016-2019 Titan (A61)
Climate Controlled Seats Only

IF YOU CONFIRM
The driver or passenger side climate controlled seat:


Heating and cooling features do not operate

And


The harness connector or control unit of the climate controlled seat appears as
shown in Figure 3 or Figure 5.

ACTION
Perform the following to the affected seat:
A. Replace the climate controlled seat control unit.
B. Drill a hole for the new harness clip.
C. Replace the harness connector of the climate controlled seat control unit.

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.
Nissan 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 Nissan dealer to determine if this applies to your vehicle.

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SERVICE PROCEDURE
WARNING: This procedure involves working under the driver or front passenger seat. The
metal seat frame has sharp edges.
CAUTION: Handle interior trim carefully to avoid damage. Work with clean hands and
clean tools to avoid dirt and stains.
IMPORTANT: Follow all cautions, warnings, and notes in the Electronic Service Manual
(ESM) when working on or near a Supplemental Restraint System (SRS), such as an air
bag or OCS components.
NOTE: If equipped, Zero Point Reset needs to be performed after the passenger seat is reinstalled.

1.

If equipped with a seat lifter, raise the height of the affected seat all the way to the
highest lifter position.

2.

Write down all radio station presets.
Presets
AM
FM 1
FM 2
SAT 1
SAT 2/3
Bass

1

2

Treble

3

Balance

4

Fade

3.

Turn the ignition OFF.

4.

Disconnect the vehicle’s 12 volt battery or batteries.


5

6

Speed Sen. Vol.

Refer to the ESM for battery removal: ELECTRICAL & POWER CONTROL >
POWER SUPPLY, GROUND & CIRCUIT ELEMENTS > REMOVAL AND
INSTALLATION – BATTERY.

5.

Wait for at least 3 minutes.

6.

Remove the affected seat from the vehicle and place it on a clean work surface.


Refer to the ESM for seat removal: BODY INTERIOR > SEAT > REMOVAL AND
INSTALLATION > FRONT SEAT.

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NTB19-004a

Climate controlled
seat control unit
harness connector
7.

Disconnect the black climate
controlled seat control unit harness
connector from the control unit.

8.

Visually inspect the harness connector
and control unit near the terminals.

Climate
controlled seat
control unit
Figure 1



If the harness connector or the control unit appears similar to Figure 3 and/or
Figure 5 (NG), proceed to step 9.



If the harness connector and the control unit appear similar to Figure 2 and Figure 4
(Good harness and connector), this bulletin does not apply. Refer to the ESM for
additional diagnostic information.
NOTE: See steps 46-52 for seat installation reference information.

Good harness connector

NG

Damaged
area

Figure 3

Figure 2
Good climate seat control unit

NG

Damaged
area

Figure 5

Figure 4
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NTB19-004a

9.

Seat back
flap J-clip

Detach the seat back flap J-clip from
the seat frame.

Figure 6

Harness connectors
10.

If equipped, remove the seat control
unit.
a. Disconnect the two (2) harness
connectors.
b. Remove the two (2) mounting
screws.
Seat
control unit
Figure 7
Climate
controlled seat
control unit

11.

Remove the climate controlled seat
control unit.
a. Disconnect the one remaining
harness connector.

Harness
connector

b. Remove two (2) screws.

Figure 8

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NTB19-004a

Harness clip
12.

Detach the harness clip shown in
Figure 9 from the seat frame.

13.

Move the SRS harness out of the way
for the following steps, if so equipped.


Shown highlighted in yellow in
Figure 9.

SRS harness

NOTE: Not all seats have the SRS
harness routed as shown in Figure 9.
Figure 10 shows another possible
routing on a different seat.
14.

Figure 9

Using a ruler measure approximately 30 mm from the left edge of the climate
controlled seat control unit mounting plate, and then mark as shown in Figure 10.
SRS harness

Edge of mounting plate

Figure 10
15.

Measure approximately 9.4 mm (± 2 mm) from the bottom of the same mounting
plate, and then mark where the two measurements intersect as shown in Figure 11.

Figure 11
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NTB19-004a

16.

Use a punch to make a slight
indentation at the intersection from
steps 14 and 15.

17.

Place a clean shop cloth under the
mounting plate to catch metal debris.

18.

Drill a hole using a 7/32 inch or a
number 3 drill bit.


A pilot hole made with a smaller
drill bit may help.

NOTE: Take care to not damage the
seat when the drill bit passes through
the mounting plate.
19.

20.

Figure 12

Gently remove the shop cloth with metal debris from the seat.

Measure from the back end of the
black climate controlled seat control
unit harness connector.

Black climate controlled
seat control unit harness
connector

NOTE: This harness connector was
disconnected in step 7.


If working on a driver’s seat
measure 60 mm.



If working on a passenger seat
measure 65 mm.
Figure 13

21.

Cut through the harness, at the point
that was measured to in step 20, with
an appropriate tool.

Figure 14
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NTB19-004a

10 mm
22.

Remove approximately 10 mm of
insulation from the six (6) wires.

Figure 15
23.

Measure from the harness side of the
new climate controlled seat control
unit harness connector (new harness)
the following amount:
NOTE: See the Parts Information
section on page 15 for the new
harness connector.

24.



If working on a driver’s seat
measure 70 mm.



If working on a passenger seat
measure 75 mm.

Cut through the new harness, at the
point that was measured to in step 23,
with an appropriate tool.

New harness

Figure 16

10 mm

25.

Remove approximately 10 mm of
insulation from the six (6) wires of the
new harness.

Figure 17

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NTB19-004a

For steps 26-29, connect one wire at a time.
CAUTION: Do not use an electric type soldering tool. An electric type soldering tool may
generate a current that may damage vehicles’ control units.

26.

Place a red solder sleeve onto one of
the wires of the new harness
connector.


27.

Twist the new harness connector wire
(with solder sleeve) together with the
same colored wire of the harness that
was stripped in step 22.


28.

The solder sleeve connectors are
listed in the Parts Information
section on page 15.

Figure 18

See Figure 18 for example of
twisting wires.

Slide the red solder sleeve over the
twisted pair and position it so that the
solder ring is over the two twisted
wires as shown in Figure 19.

Figure 19

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NTB19-004a

29.

Install the solder sleeve connector by