ITB17-016b

Classification:
Reference:
Date:
RS17-008b
ITB17-016b
August 10, 2017
2013 JX35 AND 2014 – 2016 QX60
OCCUPANT CLASSIFICATION SYSTEM RETROFIT
This bulletin has been amended. The CLAIMS INFORMATION section has been revised.
No other changes have been made. Please discard previous versions of this bulletin.
APPLIED VEHICLES:
2013 – JX35 (L50)
2014 – 2016 QX60 (L50)
2014 – 2016 QX60 Hybrid (L50)
SERVICE INFORMATION
The information in this bulletin is provided for customers who have concerns with their Occupant Classification
System (OCS) operation after all campaigns have been completed.
Follow the steps in this bulletin to determine if this OCS retrofit procedure is applicable to the vehicle you are
working on.
DETERMINE IF OCS RETROFIT APPLIES
1. Check Service COMM to confirm if OCS reprogramming campaign has been completed
(R1606 / ITB16-018).
Completed:

Write on the repair order the date it was completed and by which dealer.

Go to step 2.
Not Completed:

Complete campaign R1606 / ITB16-018.

No further action needed. OCS retrofit does NOT apply.
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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2. Verify and document the customer’s concern (have the customer demonstrate the concern).
3. Using CONSULT-III plus, check for Airbag or OCS related DTCs.
No Airbag or OCS DTCs: go to step 4.
Airbag or OCS DTCs stored:

Refer to the Electronic Service Manual (ESM), section SRC – SRS Airbag Control System, for
diagnostic and repair information.

OCS retrofit does NOT apply.
4. If all of the following are confirmed:

Campaign R1606 / ITB16-018 has been completed.

Customer concern has been confirmed and documented.

No Airbag or OCS DTCs are stored.
Then
5. Perform the Service Procedure in this bulletin.
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SERVICE PROCEDURE
WARNING: This procedure involves working under the 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. Use protective covers as needed.
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. Turn the ignition ON.
2. Write down the radio settings.
Presets
AM
FM 1
FM 2
SAT 1
SAT 2
SAT 3
Bass
1
2
Treble
3
4
Balance
5
Fade
6
Spd Sen. Vol.
3. Record (write down) any other customer settings that will be lost when the battery is disconnected.

Refer to the Electronic Service Manual (ESM) section PG-Power Supply, Ground,
& Circuit Elements, for a listing of systems that may lose settings or memory when disconnecting the
12V battery.
 Look in the PG section index for ADDITIONAL SERVICE WHEN REMOVING BATTERY
NEGATIVE TERMINAL.
 This list often includes items such as audio, HVAC, power windows, clock, etc.
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ITB17-016b
4. Turn the ignition OFF.
5. Remove the front passenger seat from the vehicle.

Refer to the ESM, section SE-Seat, for seat removal information.

The power seat may need forward/backward movement to access the mounting bolts. Follow
the ESM for battery connection/disconnection.

Each time the battery is disconnected, wait at least 3 minutes before continuing.
6. Set the seat in a clean working area.
Buckle mounting bolt
7. Disconnect the seatbelt buckle electrical
connector.
8. Remove the seatbelt buckle.

Buckle is held on with one mounting bolt.
Buckle electrical
connector
Figure 1
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9. Install the new seatbelt buckle (see Figure 2).

Torque the mounting bolt to: 49 N·m (5.0 kg-m, 36 ft-lb)

Connect the short harness branch connector to the existing harness.

Route and attach the new (long) harness branch as shown in Figure 2.
Buckle mounting bolt
New (long) harness branch
mounted here
New (long) harness
branch
Route new (long) harness
branch under existing
harness as shown
Short harness branch connector
Figure 2
10. From under the seat, mount the connector of the new (long) harness branch to the seat frame as shown in
Figure 3 and 4 (use the hole and slot shown).
New (long) harness branch
connector from new seatbelt
buckle
Front OCS
sensor
Figure 3
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
Attach the new (long) harness branch as shown in Figure 4.
New (long) harness branch
connector from new seatbelt
buckle
Front OCS
sensor
New (long) harness branch
mounted here
Figure 4
11. From under the seat, remove the old OCS harness and install the new one.

The OCS harness consists of the wiring and connectors between the OCS sensors, OCS control unit,
and new seatbelt buckle.
IMPORTANT:
a. Disconnect one OCS harness connector or mounting clip, then
b. Connect the new OCS harness connector or mounting clip before moving to the next one.

Disconnecting/connecting one at a time will ensure that the new harness is connected exactly
as the old one.

Refer to images of the OCS harness on the next page.

Refer to images on pages 8 and 9 for exact harness mounting points.
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ITB17-016b
EXAMPLE
EXAMPLE
New OCS harness and
seatbelt buckle are installed
Old OCS harness and seatbelt
buckle are removed from the seat.
Notice the new harness and buckle
have a new branch and connector
Figure 5
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ITB17-016b
OCS Seat Harness Mounting Points
NOTE: Figures 6 – 9 show a seat without climate control. For a seat with climate control the OCS harness
routing and mounting is the same.
Harness clip
OCS control unit
Figure 6
Harness Connector
Harness clip
Harness clip
Harness clip
Figure 7
Continued on the next page.
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ITB17-016b
OCS Seat Harness Mounting Points continued
Connector of new branch from OCS
harness to new branch from the
seatbelt buckle
Install tie wrap here –
cut off excess tie wrap.
OCS sensor
Harness clip
Figure 8
OCS sensor
Harness clip
OCS sensor
Figure 9
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ITB17-016b
OCS control unit
12. Replace the OCS control unit with the new one.

OCS control unit is held on with 2 screws.

The OCS control unit is located under the
front edge of the seat.
Figure10
13. Reinstall the seat into the vehicle in reverse order of removal.

Torque passenger seat mounting bolts to: 48 N•m (4.9 kg-m, 35 ft-lb)
14. If battery cables were not connected as part of the seat installation, reconnect them now, positive cable
first.
15. Reset/reinitialize systems as needed.

Refer to the ESM section, PG – Power, Supply & Ground Elements for a listing of systems that require
reset/initialization after reconnecting the 12V battery.
 Look in the PG section index for ADDITIONAL SERVICE WHEN REMOVING BATTERY
NEGATIVE TERMINAL.
 This list often includes items such as audio, power windows, clock, etc.
16. Perform Zero Point Reset, using CONSULT III plus, on the next page.
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ITB17-016b
Zero Point Reset
1. Prepare the vehicle for OCS zero point reset as follows:

Level the vehicle.

No objects on the passenger seat or in the storage bin.

No occupants in the vehicle – including the servicing technician.

PC is outside of the vehicle on a suitable support.
 Do not set the PC on the vehicle.

Do not touch the vehicle during the OCS zero point reset.

Minimize vibrations of the vehicle.
2. Connect the plus VI to the vehicle.
3. Open / start CONSULT-III plus (C-III plus).
4. Turn the ignition ON, with engine OFF (engine not running/not in ready mode).
5. Wait for the plus VI to be recognized.

The Serial No. will display when the plus VI is recognized.
6. Select Diagnosis (One System).
7. Scroll C-III plus (All systems) and select OCCUPANT DETECTION.
Step 7
Scroll
h
Figure 1A
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8. Select Zero point reset function.
9. Select Start.
Step 8
Step 9
Figure 2A
10. Select Next.
Step 10
Figure 3A
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11. Select Start and then proceed to step 12.

After selecting Start, if Figure 5A is displayed:
a. Check the OCS control unit and confirm that harness connector is completely seated.
b. Turn the ignition OFF and then restart procedure from step 4 on page 11.
Step 11
Figure 4A
Figure 5A
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12. Zero point reset will display “EXECUTING”.
Figure 6A
13. When finished, "Completed" will display next to “Current status”.

Select End and then proceed to step 14.
Figure 7A
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Step 13
ITB17-016b
14. Turn the ignition OFF and then back ON and observe the air bag warning light and front passenger airbag
status light:

The air bag warning light

The front passenger airbag status light
should illuminate for 7 seconds and then either stay
illuminated or go out depending on the occupation of the front passenger seat.
should illuminate for 7 seconds and then go out.
Front Passenger Airbag Status Light Operation
CONDITION
DESCRIPTION
Empty
Empty front passenger seat
Bag or Child or Child Restraint or
Small Adult in the front passenger
seat
Adult in front passenger seat
Nobody/Somebody
Adult
PASSENGER AIR BAG
INDICATOR LIGHT
ON (illuminated)
FRONT PASSENGER
AIR BAG STATUS
INHIBITED
ON (illuminated)
INHIBITED
OFF (dark)
ACTIVATED
NOTE: If the air bag warning light or the front passenger airbag status light does not operate as
described above there may be an issue not covered by this bulletin. Refer to ASIST and the
appropriate Service Manual for additional diagnostic and repair information.
15. Provide the customer with a printed copy of FRONT PASSENGER AIR BAG STATUS LIGHT OPERATION
(see last page).
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PARTS INFORMATION
MODEL
YEAR
QX60
2014 - 2016
JX35
2013
DESCRIPTION
Controller Assy-Occupant Sensor
(OCS Control Unit)
Controller Assy-Occupant Sensor
(OCS Control Unit)
PART #
QUANTITY
98856-9NF0A
1
98856-9NA6A
1
2013 JX35 and 2014-2016 QX60
Seatbelt Buckle – Black/Charcoal
86842-9NF8B
2013 JX35 and 2014-2016 QX60
Seatbelt Buckle – Beige/Tan
86842-9NF8A
2013 JX35 and 2014-2016 QX60
OCS Harness
98854-9NF0A
2013 JX35 and 2014-2016 QX60
Clip (Tie-wrap)
24224-3VX0B
1
1
CLAIMS INFORMATION
Submit a CM line claim using the following claims coding:
CM ID
P7321
DESCRIPTION
Perform OCS Retrofit
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OP CODE
P73210
FRT
1.0 hrs.
ITB17-016b
FRONT PASSENGER AIR BAG STATUS LIGHT OPERATION
NOTE: Please print this page and place a copy in the vehicle.
The front passenger seat is equipped with an occupant classification
sensor (weight sensor) that turns the front passenger air bag on or off
depending on the weight applied to the front passenger seat. The status
of the front passenger air bag (ON or OFF) is indicated by the front
passenger air bag status light
which is located on the instrument
panel. After the ignition switch is placed in the “ON” position, the front
passenger air bag status light on the instrument panel illuminates for
about 7 seconds and then turns off or remains illuminated depending on
the front passenger seat occupied status. The light operates as follows:
CONDITION
DESCRIPTION
Empty
Empty front passenger seat
Nobody/Somebody
Adult
Bag or Child or Child Restraint or
Small Adult in the front passenger
seat
Adult in front passenger seat
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PASSENGER AIR BAG
INDICATOR LIGHT
ON (illuminated)
FRONT PASSENGER
AIR BAG STATUS
INHIBITED
ON (illuminated)
INHIBITED
OFF (dark)
ACTIVATED
ITB17-016b