Classification:

Reference:

Date:

EL19-050

ITB20-004

February 14, 2020

2013 JX AND 2014-2019 QX60;
CLIMATE CONTROLLED SEAT INOPERATIVE
APPLIED VEHICLES:
APPLIED SYSTEM:

2013 JX (L50)
2014-2019 QX60 (L50)
2014-2017 QX60 Hybrid (L50)
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.
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 retailer to determine if this
applies to your vehicle.

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SERVICE PROCEDURE
This procedure involves working under the driver or front passenger seat. To avoid personal
injury, wear gloves while working on the seat frame to prevent cuts to your hand.
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.

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

Treble

2

3

Balance

3.

Turn the ignition OFF.

4.

Disconnect the vehicle’s 12 volt battery.


4

Fade

5

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.


6

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

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ITB20-004

Climate controlled seat
control unit harness
connector

7.

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

8.

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

Figure 1



If the harness connector or the control unit appear 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 43-49 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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ITB20-004

White
harness
connector
9.

Climate controlled
seat control unit

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

Figure 6

10.

Detach the seat back flap J-clips from the seat
frame and fold the seat back flap out of the
way.
Seat back
flap J-clips
Figure 7

11.

Cut through zip tie shown in Figure 9.

Zip tie

Figure 8

Figure 9

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ITB20-004

12.

Move the SRS harness out of the way, as shown in Figure 10.


Highlighted in yellow.

13.

Detach the harness clip shown in Figure 10 from the seat frame.

14.

Remove the two (2) screws (Figure 10) retaining the climate controlled seat control unit, and then
remove control unit from the seat.

SRS harness
Harness clip
Climate controlled
seat control unit

Screws
Figure 10

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ITB20-004

15.

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 12.

SRS harness
Edge of mounting plate

Figure 12

Figure 11

16.

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 14.

Figure 13

Figure 14

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ITB20-004

17.

Use a punch to make a slight indentation at the
intersection from steps 15 and 16.

18.

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

19.

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.
Take care to not damage the
seat cushion. Limit the drill bit depth to
prevent seat cushion contact.

20.

21.

Figure 15

Gently remove the shop cloth with metal debris from the seat.
Black climate controlled seat
control unit harness connector

Measure from the back end of the 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 16

22.

Cut through the harness, at the point that was
measured to in step 21, with an appropriate
tool.

Figure 17
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ITB20-004

10 mm

23.

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

Figure 18
24.

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 of this bulletin, on page 15, for
the new harness connector.

25.



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



If working on a passenger seat measure
75 mm.

New harness

Cut through the new harness, at the point that
was measured to in step 24, with an
appropriate tool.

Figure 19

10 mm

26.

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

Figure 20

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ITB20-004

For steps 27-30, connect one wire at a time.
Do not use an electric type soldering tool. An electric type soldering tool may generate a
current that may damage the vehicle’s control units.

IMPORTANT: The gray wire of the
new harness will be connected to the
black wire of the vehicle seat harness.
Grey wire
Black wire
Figure 21
27.

Place a red solder sleeve onto one of the wires