Classification :

Reference:

Dat e:

BT13-017

ITB13-042

October 23, 2013

2011-2013 QX56; SECOND ROW SEAT HEATERS DO NOT WORK
APPLIED VEHICLE: 2011-2013 QX56 (Z62) equipped with 2nd row heated seating only
APPLIED VINs: All 2011 and 2012 vehicles
2013 2WD vehicles built before JN8AZ2N F(*)D9 550822
2013 4WD vehicles built before JN8AZ2N C(*)D9 350396
2013 2WD vehicles built before JN8AZ2N E(*)D9 061162
2013 4WD vehicles built before JN8AZ2N D(*)D9 750192
APPLIED DATES: All 2011 and 2012 vehicles
2013 2WD vehicles built before April 24, 2013
2013 4WD vehicles built before April 23, 2013

IF YOU CONFIRM:
Both seat heaters of the second row seats do not work.
AND
Fuse # 14 is found open (or “blown”).
NOTE: This issue applies to both captain and bench type second row heated seating.
ACTION:
1. Repair the right side second row seat:
a. Clean off welding spatter on the seat hinge (the cause of harness damage), and then apply
protective covering on the seat hinge.
b. Repair the damaged seat harness wiring or replace the seat harness as necessary.
•

For repairs, refer to SERVICE PROCEDURE starting on page 3.

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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1

2nd

Example of
row RH heated seat

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ITB13-042

SERVICE PROCEDURE
Second Row RH Captain and Bench Type Seat Harness Wiring Repair
NOTES:
• Pictures are taken from a QX56 with bench type second row heated seating. Captain seats are similar.
• Although most repairs are shown performed with the seat in the vehicle, repairs can be performed on a
clean work bench with suitable covering.
• If repairs are performed in the vehicle, the RH seat and seatback will need to be repositioned multiple
times depending on which step is being performed.
• The seat will need to be removed if the seat harness needs to be replaced.
• Protect interior surfaces around the seat with suitable covering before starting the repair procedure.
1. Unzip the inner and outer seatback zippers.
• The ends of both zippers are tucked within the seat trim.
Second row RH seatback
Inner zipper
shown partially
tucked in

Figure 1

Figure 2

2. Unclip the full length of the bottom portion of the
seatback trim with a suitable tool, and then peel
it up and out of the way.

Figure 3

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ITB13-042

3. Unsnap both clips (one on each side), and then
peel down the lower portion of the seat trim.

LH clip and
clip hole

Lower
seat trim

Figure 4

4. Similar to step 2, unclip the full length of the
seat cushion trim, and then peel it down and
out of the way.

Figure 5

5. Unfasten the lower cushion where secured by
hook-and-loop (or “Velcro” type) fasteners by
peeling them apart.

Hook-and-loop

Figure 6

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ITB13-042

6. Unsnap the rear clips of the “reclining device
outer cover inner” (or inner cover).

Inner cover
Figure 7

7. Unsnap the top clips of the inner cover.

Figure 8
8. Similar to step 2 and 4, unclip the lengths of the seat cushion trim on each side, and then peel them out of
their grooves.

Figure 9

Figure 10

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9. Carefully peel back the seat cushion trim and pad
toward the front of the seat.

Figure 11

10. With the inner cover already detached, remove
it by rotating clockwise and downward, and then
removing from the backside of the seat (see
Figure 12 and 13).
•

The inner cover will need to be lifted above
the LATCH anchor while rotating.
NOTE: This inner cover will not be reused
and will be replaced by one with a new design
(see PARTS INFORMATION).
Figure 12

Lift inner cover
over
LATCH anchor

Figure 13

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11. Inspect for and remove all weld spatter in the
area where noted in Figure 15.
•

Using a suitable hammer and chisel as shown
in Figure 16, carefully chip off all spatter.
¾ Do NOT chisel in an angle or direction
other than shown in Figure 16.
NOTE: Make sure to use sufficient protective
covering on and around the seat.
CAUTION: Do NOT use a grinding type tool
as the removed material may get into the
reclining device.

Figure 14

WARNING: Use suitable eye protection when
chiseling.
12. Smooth off the chiseled areas and sharp edge
with suitable sandpaper, and then clean off the
area shown in Figure 15.

Sharp edge
along
white line

Area to be inspected
and cleaned
Figure 15

Direction of chiseling

Weld spatter
Figure 16

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ITB13-042

13. Apply a piece of 25 mm x 100 mm (1 inch x
4 inch) tape where shown in Figure 17 and 18.

…and then
follow
this edge

•

Use the tape listed in PARTS
INFORMATION.

•

Make sure to wrap the tape around the edge
as shown in Figure 18.

14. Determine if the wiring in the seat harness can
be repaired.
•

•

If only one wire needs repairing, proceed
with repairing the one wire, and then go to
step 15 below.
¾ Repair the wire only as outlined in
ITB03-054.

Start tape here…
Figure 17

If two or more wires need repair, replace
the seat harness.
¾ Go to Replace Seat Harness on the
next page before going to step 15 below.

15. Install the new inner cover (see PARTS
INFORMATION).
•

Route the seat harness as allowed by the
new inner cover.

Wrap tape
around
this edge

16. Reassemble the second row RH seat in reverse
order of disassembly.

Figure 18
17. If the seat was removed, install it.
•

Seat mounting nuts AND bolts torque: 40 N•m (4.1 kg-m, 30 ft lbs)

18. Replace the # 14 fuse.
19. Verify the repair.

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If Needed: Replace Seat Harness
NOTES:
•
•

The seat harness is to be replaced only if two or more wires are damaged.
If the seat is still mounted in the vehicle, it will now need to be removed for harness replacement.

1. Remove the seat:
a. Remove the hinge cover, and then remove
the two bolts behind it.
b. Raise the seat, lift the trim, and then
disconnect the seat harness.
c. Remove the two nuts, and then remove the
seat.
•

Trim,
nuts, and
harness
Perform seat repairs on a clean surface such connector
as a work bench with suitable covering.
Bolts and
hinge cover
Figure 19

3. Slide the four clips to line them up with the holes,
and then move the seatback board out of the way.
4. Disconnect the seat harness from the seatback
heater unit’s electrical connector (hidden behind
the seatback board).

Clips

Seatback heater
unit connector

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Figure 20

ITB13-042

6. Remove the four screws (two on each side) holding the seat cushion under cover.
Seat cushion
under cover

Figure 21

Figure 22

7. Unsnap both outer reclining covers from the seat cushion under cover as shown below, and then carefully
remove the seat cushion under cover.

Figure 23

Seat cushion
under cover

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Figure 24

ITB13-042

8. First, note the routing and securing of the seat harness, and then remove it.

Same tie strap

Tie strap

Figure 25

Harness behind cable

Figure 26
9. Route and secure (with two tie straps) the new seat harness the same way as the old seat harness.
10. Reassemble the seat cushion in reverse order of disassembly as given under If Needed:
Replace Seat Harness, and then go to page 8, step 15.

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PARTS INFORMATION

*

DESCRIPTION

COLOR

PART NUMBER

QTY

EPDM SEMI CLOSED CELL (tape, 2.5 mm thick)

--

1

COVER-RECLIN DEVICE (inner cover)
COVER-RECLIN DEVICE (inner cover)

“C” (Lt Beige)
“G” (Black)

J-50397-7 *
88408-1LA1A
88408-1LA1B

1
1

HARNESS, SEAT

--

88019-1LG6A

1 **

Tie strap (or wire tie)

--

--

2 ***

Included in Squeak & Rattle Kit J-50397. To order, contact Nissan TechMate at 1-800-662-2001 or order
online at: www.nissantechmate.com. Or, the link below goes directly to the part number on the e-commerce
site for ordering: https://tools.nissantechmate.com/en-US/Pages/ItemDetail.aspx?itemID=49779
Replace this part only if two or more wires are in need of repair.

**
*** Shop supply.

Old style cover

Tape, 2.5 mm thick

2.5 mm

New style cover

CLAIMS INFORMATION
Submit a Primary Part (PP) type line claim using the following claims coding:
DESCRIPTION
PFP OP CODE
Repair second row seat heater with harness repair
(1)
VX4LAA

SYM DIA
ZE
32

FRT
1.2

(1) Refer to the electronic parts catalog FAST and use the appropriate Second Row Seat Heater Harness part
number (88019-XXXXX) as the Primary Failed Part (PFP).
Or
Submit a Primary Part (PP) type line claim using the following claims coding:
DESCRIPTION
PFP OP CODE
Repair second row seat heater with harness replacement
(1)
VX4MAA

SYM DIA
ZE
32

FRT
1.6

(1) Refer to the electronic parts catalog FAST and use the appropriate Second Row Seat Heater Harness part
number (88019-XXXXX) as the Primary Failed Part (PFP).

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