Figure 7B

17. Return C-III plus to the Home screen.
18. Turn OFF C-III plus and the vehicle ignition.
19. Disconnect C-III plus from the vehicle.
20. Refer to the flow chart on page 2 to determine next steps.

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TEST DRIVE
IMPORTANT: This part of the Service Procedure is performed only if both of the following apply:


The customer answers Yes to the Service Advisor Interview (see page 3), and



No DTCs were stored (see page 5).

DTC detection drive pattern for P17F0 / P17F1
NOTE: Perform the following drive pattern in a safe area. Make sure to follow all traffic regulations.
1. Stop the vehicle.
2. Slowly accelerate, applying only slight accelerator pedal (less than 10% throttle opening) until 20 mph is
reached.


Torque converter engagement (full lock up) can occur around 20 mph.

3. Hold 20 mph (about 1000 rpm for 2 seconds).
4. Slowly accelerate, applying only slight accelerator pedal (less than 10% throttle opening) until 30 mph is
reached.


Keep steady acceleration without releasing pressure on the accelerator.

5. Hold 30 mph for 5 seconds.
6. Release accelerator pedal (0% throttle).
7. Coast to 20 mph, then apply the brakes to slowly bring the vehicle to a stop.
8. Slowly accelerate, applying only slight accelerator pedal (less than 10% throttle opening) until 20 mph is
reached.


Torque converter engagement (full lock up) can occur around 20 mph.

9. Hold 20 mph (about 1000 rpm for 2 seconds).

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10. Slowly accelerate, applying only slight accelerator pedal (less than 10% throttle opening) until 40 mph is
reached.


Keep steady acceleration without releasing pressure on the accelerator.

11. Hold 40 mph for 2 seconds.
12. Shift the gear selector to Manual mode.
13. Hold 40 mph for 5 seconds.
14. Shift the gear selector back do Drive.
15. Release accelerator pedal (0% throttle).
16. Coast to 30 mph, then apply the brakes to slowly bring the vehicle to a stop.
17. Repeat steps 1 through 16 for a total of three times.
18. When the test drive is compete, re-check for DTCs (see page 5).


If P17F0 is stored; go to CVT ASSEMBLY REPLACEMENT on page 25.



If P17F1 is stored; go to CVT CHAIN INSPECTION on the next page.



If neither of the above codes are stored – campaign is compete.

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CVT CHAIN INSPECTION / CONTROL VALVE (VALVE BODY) REMOVAL
IMPORTANT: This part of the Service Procedure is performed only if both of the following apply:


The customer answers Yes to the Service Advisor Interview (see page 3), and



DTC P17F1 is stored.

1. Remove the valve body.


Before lifting the vehicle:
 Place the transmission gear selector in Neutral.
 Leave the driver door unlatched. A step further in the procedure may require it.



Refer to the Electronic Service Manual (ESM), section TM-Transmission, for valve body removal.
NOTE:
o The CVT unit harness connector may be left in place when removing the valve body assembly.
o The number “7” is on the head of all valve body bolts that need to be removed. Do not remove
any bolt that does not have the number “7”.
CAUTION: Never allow any chemicals or fluids other than NS-3 CVT fluid or equivalent to enter
the CVT assembly. Never allow any foreign debris, dust, dirt, etc. to enter the CVT assembly.
NOTE: For additional information, see video # 546: “CVT Chain Inspection”. This video is located under
the TECH TRAINING GARAGE VIDEOS tab in Virtual Academy.

2. Secure the right front tire with a suitable strap.


This will assist in making the chain turn.

3. Mark the left front tire with a suitable marking.


This will assure all 360° of the chain is inspected.

Figure 1C

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4. Using borescope J-51951 with mirror attachment, visually inspect the side of the CVT chain that comes in
contact with the pulley:

NOTE: It is recommended that you review the instructions and Figures on pages 17 through 23 before
continuing with the procedure.

a. Insert the borescope into the correct area of the CVT (see Figures 4C - 7C).
b. Slowly and carefully turn the left front tire one full turn in the forward rotation to view all of the chain.
CAUTION: If the tire is rotated in the rearward rotation, the camera lens may get caught between
the chain and pulley.


Holding the borescope with one hand allows for turning the tire with the other hand (see Figure
2C).

Figure 2C
NOTE: Reference the photos on pages 22 – 24 for examples of chain slippage and for
comparison to the vehicle you are working on.


First inspect the entirety (360°) of the driver side of the chain that comes in contact with the pulley
(see pages 19 – 20).



If the inspection result is OK on all 360° of driver side of the chain; inspect all 360° of the
passenger side of the chain.

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 If no evidence of chain slippage is found on both sides of the chain; go to VALVE BODY
REPLACEMENT on page 26.
 If any evidence of chain slippage is found, go to step 5 below.
5. Evidence of chain slippage was found:
a. Create video of the chain slip/damage and the VIN for PCC (Powertrain Call Center) CVT replacement
authorization.





Use borescope J-51951 to record a 15
second or less continuous video of the
most severe evidence of chain
slip/damage and the VIN on the
F.M.V.S.S. certification label (VIN label).

Example
of VIN label
location

For best picture, the camera lens should
be about 10 mm away from the object
being recorded.
Figure 3C

b. The CVT unit requiring replacement will need to be reassembled (valve body reinstalled) for Infiniti
parts return/collection.
c. Go to CVT ASSEMBLY REPLACEMENT on page 25.

NOTE:


The required video must be attached to the Powertrain Call Center CVT Preauthorization Form
(in ASIST) prior to calling for authorization. Failure to submit a continuous video will cause
immediate denial of request for replacement.



Before starting to record, make sure the camera handle’s AA batteries are fresh and the LCD
monitor’s battery is charged.



The whole video will show as backward, or reversed mirror image. This is okay.



The required video must show clear evidence of chain slippage and be 15 seconds or less.

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Refer to Figures 4C to 8C for camera lens (borescope) insertion instructions:



Insert the camera lens behind the pulley between the guide rail and the pulley where shown in
Figure 4C (see also Figure 5C – 8C).



Insert approximately 8-9 inches, and then view the side of the chain that contacts the pulley.

Chain
Pulley
Guide
rail
------

------

Front

Driver side

Insert here for driver
side of chain
Insert here for passenger side of
chain

Figure 4C

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

Figure 5C shows where to insert the camera lens on the driver side of the chain.
Chain
Pulley
Guide
rail
Camera
cable
------

------

------

Figure 5C



Figure 6C shows where to insert the camera lens on the passenger side
of the chain.
Chain
Pulley
Guide
rail
Camera
cable
------

------

------

Figure 6C

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

Figures 7C and 8C show the routing and location of the camera.
NOTE: The CVT’s side cover was removed for easier viewing of camera location. The side cover is
not to be removed at any time during this procedure.

UP

Front of vehicle

Camera lens
positioned behind
plastic guide

Camera
cable

Primary pulley:
Camera cable routed
past primary pulley

Figure 7C

For best picture,
position camera lens
10 mm away from
chain
Figure 8C
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Figure 9C: CVT chain

Inspect this side
Inspect this side
Do not inspect
this side
Do not inspect
this side

Figure 10C

Inspect these surfaces

Figure 11C: Close-up of area to be inspected
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Photos in Figure 12C and 13C were taken with borescope J-51951.

OK

OK

Writing will show as
reversed; this is normal
Figure 12C

Figure 13C

OK

Figure 14C

OK

Figure 15C

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Pictures in Figure 16C – 20C were taken with borescope J-51951.

NG

NG

Scuff marks
caused by
slippage

Figure 16C

Figure 17C

NG

Figure 18C

NG

Figure 19C

NG

Figure 20C

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CVT ASSEMBLY REPLACEMENT
IMPORTANT: This part of the Service Procedure is performed only if the following apply:


The customer answers Yes to the Service Advisor Interview (see page 3), and



DTC P17F0 is stored (before or after test drive), or



The chain inspection result is NG.

NOTE:


PCC authorization to replace the CVT assembly is required (see page 50).



If the valve body was removed for chain inspection, it will need to be reinstalled for Infiniti parts
return/collection.

1. Remove the CVT assembly from the vehicle.


Refer to the Electronic Service Manual (ESM), section TM – Transaxle & Transmission, for removal
information.

2. Flush the CVT cooler(s).


IMPORTANT: A CVT Cooler flush is required. Refer to COOLER FLUSH on
page 33.



It may be easier to flush the cooler while the CVT is removed.

3. Install the new CVT assembly into the vehicle.


Refer to the ESM, section TM – Transaxle & Transmission, for installation information.

4. Go to ERASE / WRITE CALIBRATION DATA WHEN REPLACING CVT or VALVE BODY on page 38.

IMPORTANT: Check for fluid leaks before returning the vehicle to the customer.

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VALVE BODY REPLACEMENT / INSTALLATION

IMPORTANT: This part of the Service Procedure is performed only if the following apply:


The customer answers Yes to the Service Advisor Interview (see page 3), and



DTC P17F1 is stored (before or after test drive), and



The chain inspection result is OK.

NOTE: Valve body replacement does not require PCC authorization.

1. If the valve body is being replaced, it should have already been removed to inspect the chain.

2. Confirm that the QR label, control valve and CD part numbers all match before installing the control
valve (refer to page 38).
IMPORTANT: Valve Body installation steps in this bulletin may contain different style parts than what were
originally installed in the CVT. Pay careful attention, REASSEMBLY MAY NOT BE IDENTICAL TO
DISASSEMBLY.

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3. If an oil strainer bracket was removed, discard it.
An oil strainer bracket will not be used with the
new oil strainer.

Oil strainer
bracket

Figure 1D

4. Install a new lip seal.


Do NOT reuse the old lip seal.



Apply a small amount of petroleum jelly to the
lip seal to keep it in place on the CVT.
Lip seal

Figure 2D

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25 mm bolts

5. Install the valve body with eleven (11) mounting
bolts.
IMPORTANT: Leave Four (4)
at this step.

bolt holes blank

CAUTION: Make sure the wiring harness does not
get pinched (see Figures 4D and 5D for correct
routing).


54 mm long bolt

– 7 pieces



44 mm long bolt

– 2 piece

