SB-10044227-1887

Classification:

Reference:

Date:

AT12-003b

ITB12-027b

August 21, 2012

2009 - 2012 G37; SHIFT RESPONSIVENESS ISSUES
This bulletin has been amended to include the G37 convertible hard top (HV36) to Applied Vehicles and
add part numbers to Table A. Discard all previous copies.

APPLIED VEHICLES:
APPLIED ENGINE:
APPLIED TRANSMISSION:

2009 – 2011 G37 Sedan and Coupe (V36/CV36)
2009 – 2012 Convertible (HV36)
VQ37VHR
7 speed

IF YOU CONFIRM
One or more of the following conditions:
•

Harsher than expected down shifts when coasting to a stop

•

Hesitation/lag when accelerating after coasting

•

Hesitation/lag or harsher than expected down shifts when coming to a stop and accelerating again
(rolling stop)

•

Engine rev matching during moderate to heavy braking
NOTE: Engine rev matching is normal operation of the ASC (Adaptive Shift Control) in normal drive
mode and sport mode. The ECM and TCM reprogramming in this bulletin will remove engine rev
matching from ASC in normal drive mode, but it will remain as part of the ASC in sport mode

ACTION
1. Refer to step 6 in the SERVICE PROCEDURE to confirm this bulletin applies to the vehicle you are
working on.
2. If this bulletin applies, reprogram the ECM and TCM.
CLAIMS INFORMATION
Submit a Primary Part (PP) type line claim using the following claims coding:
DESCRIPTION
OP CODE
PFP
SYM
DIAG
FRT
Reprogram TCM and ECM
DX32AA
(1)
BE
32
0.8
(1) Refer to the electronic parts catalog (FAST or equivalent) and use the appropriate Control Valve Assembly
(31705-XXXXX) part number as the PFP.
IMPORTANT: The purpose of "ACTIONS" (above) is to give you a quick idea of the work you will be
performing. You MUST closely follow the entire Service Procedure (starting on page 2) 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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SERVICE PROCEDURE
•

This procedure will require reprogramming of the ECM and TCM; which means most steps in this
procedure will need to be done twice.

•

Most instructions for reprogramming with CONSULT-III plus (C-III plus) are displayed on the CONSULT
PC screen.

•

If you are not familiar with the reprogramming procedure, click here. This will link you to the
"CONSULT- III plus (C-III plus) Reprogramming" general procedure.

Preparation for Reprogramming
•

Take the vehicle for a 10 minute drive in order to meet the
following Idle Air Volume Learn (IAVL) conditions:
¾ Engine coolant temperature: 70 -100°C
(158 - 212°F)
¾ Battery voltage: More than 12.9V (At idle)
¾ Transmission: Warmed up
Figure A
NOTE:
•

After ECM reprogramming is complete, you will be required to perform Throttle Valve
Closed Position, Idle Air Volume Learn (IAVL), and Accelerator Closed Position.

•

The above conditions are required for the IAVL to complete.

CAUTION:
•

Connect a battery charger to the vehicle battery.
The vehicle battery voltage must stay between 12.0V and 15.5V during reprogramming, or the
ECM/TCM may be damaged.

•

Be sure to turn OFF all vehicle electrical loads.
If a vehicle electrical load remains ON, the ECM/TCM may be damaged.

•

Be sure to connect the AC Adapter.
If the CONSULT PC battery voltage drops during reprogramming, the process will be interrupted
and the ECM/TCM may be damaged.

•

Turn off all external Bluetooth® devices (e.g., cell phones, printers, etc.) within range of the
CONSULT PC and the VI. If Bluetooth® signal waves are within range of the CONSULT PC
during reprogramming, reprogramming may be interrupted and the ECM/TCM may be damaged.

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1. Connect the CONSULT PC to the vehicle to begin the reprogramming procedure.
2. Open ASIST on the CONSULT PC and start C-III plus.
3. Wait for the plus VI to be recognized / connected.
•

Serial number will display when the plus VI is recognized / connected.

4. Select Re/programming, Configuration.

Step 3: VI is
recognized

Step
4

Figure 1

5. Follow the on-screen instructions and navigate the C-III plus to the screen shown in Figure 2 on the next
page.

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6. When you get to the screen shown in Figure 2, confirm this bulletin applies as follows:
A. Find the ECM or TCM Part Number and write it on the repair order.
NOTE: This is the current ECM or TCM Part Number (P/N).

6A: Current P/N

Figure 2

B. Compare the P/N you wrote down to the numbers in the Current ECM Part Number column in Table
A on page 5 and 6, and TCM Part Number column in Table B on page 7.
•

If there is a match, this bulletin applies. Continue with the reprogramming procedure.

•

If there is not a match, reprogramming does not apply. Make sure to check both ECM and TCM
for a match.

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Table A – ECM
Model

2009 G37 Sedan

2009 G37 Coupe

2010 G37 Sedan

2010 G37 Coupe

Current ECM Part Number: 23710 1NC4D, 1NC4C, 1NC4B, 1NC4A
1NC5D, 1NC5C, 1NC5B, 1NC5A
1NC6D, 1NC6C, 1NC6B, 1NC6A
1NC7D, 1NC7C, 1NC7B, 1NC7A
JU60D, JU60C, JU60B, JU60A
JU61D, JU61C, JU61B, JU61A
1ND4D, 1ND4C, 1ND4B, 1ND4A
1ND5D, 1ND5C, 1ND5B, 1ND5A
1ND6D, 1ND6C, 1ND6B, 1ND6A
1ND7D, 1ND7C, 1ND7B, 1ND7A
JU70D, JU70C, JU70B, JU70A
JU71D, JU71C, JU71B, JU71A
1MW0A, 1NS0E, 1NS0B, 1NS0A
1MW0B, 1NS0D, 1NS0C
1MW1A, 1NS1E, 1NS1B, 1NS1A
1MW1B, 1NS1D, 1NS1C
1MW2B, 1NS2D, 1NS2C
1MW2A, 1NS2E, 1NS2B, 1NS2A
1MW3A, 1NS3E, 1NS3B, 1NS3A
1MW3B, 1NS3D, 1NS3C
1MW6A, 1NS6E, 1NS6B, 1NS6A
1MW6B, 1NS6D, 1NS6C
1MW7A, 1NS7E, 1NS7B, 1NS7A
1MW7B, 1NS7D, 1NS7C
1PX0A, 1NG0E, 1NG0B, 1NG0A
1PX0B, 1NG0D, 1NG0C
1PX1A, 1NG1E, 1NG1B, 1NG1A
1PX2A, 1NG2E, 1NG2B, 1NG2A
1NG3E, 1NG3B, 1NG3A
1PX1B, 1NG1D, 1NG1C
1PX2B, 1NG2D, 1NG2C
1PX3B, 1NG3D, 1NG3C
1PX7A, 1NG7E, 1NG7B, 1NG7A
1PX7B, 1NG7D, 1NG7C
1PX8A, 1NG8E, 1NG8B, 1NG8A
1PX8B, 1NG8D, 1NG8C

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Table A – ECM (continued)
Model

Current ECM Part Number: 23710 1NX0B, 1NX0A
1NX0D
1NX1C
1NX1B, 1NX1A
1NX2C
1NX2B, 1NX2A
1NX3C
1NX3B, 1NX3A
1NX6B, 1NX6A
1NX6C
1NX7B, 1NX7A
1NX7C
1VU0B, 1VU0A
1VU0D
1VU1B, 1VU1A
1VU1C
1VU2B, 1VU2A
1VU2D
1VU3B, 1VU3A
1VU3C
1VU6B, 1VU6A
1VU6C
1VU7C, 1VU7B
1VU7A

2011 G37 Sedan

2011 G37 Coupe

2009 G37
Convertible

JJ50D, JJ50C, JJ50B, JJ50A
JJ51D, JJ51C, JJ51B, JJ51A
JJ54D, JJ54C, JJ54B, JJ54A
JJ55D, JJ55C, JJ55B, JJ55A

2010 G37
Convertible

JJ80C, JJ80A, 1NJ0E, 1NJ0B, 1NJ0A
JJ80D, JJ80B, 1NJ0D, 1NJ0C
JJ81C, JJ81A, 1NJ1E, 1NJ1B, 1NJ1A
JJ81D, JJ81B, 1NJ1D, 1NJ1C
JJ82C, JJ82A, 1NJ2E, 1NJ2B, 1NJ2A
JJ82D, JJ82B, 1NJ2D, 1NJ2C
JJ83C, JJ83A, 1NJ3E, 1NJ3B, 1NJ3A
JJ83D, JJ83B, 1NJ3D, 1NJ3C

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Table A – ECM (continued)
Model

Current ECM Part Number: 23710 -

2011 G37
Convertible

3WP7A, 1NY0B, 1NY0A
3WP7B, 1NY0D
1NY1D, 1NY1B, 1NY1A
1NY1E, 1NY1C
1NY2D, 1NY2B, 1NY2A
1NY2E, 1NY2C
1NY3D, 1NY3B, 1NY3A
1NY3E, 1NY3C
1VZ0C, 1VZ0B, 1VZ0A
1VZ1C, 1VZ1B, 1VZ1A

2012
G37Convertible

1VZ2C, 1VZ2B, 1VZ2A
1VZ3C, 1VZ3B, 1VZ3A

Table B - TCM
Model

Current TCM Part Number: 31039 -

2009 G37 Sedan
and Coupe

X458D X450A, X439E, X439D, X439C, X439A, X438E, X438D,
X438C, X382D, X382C, X380C, X380B, X359D, X359C, X351B,
X351A, X350E, X211E, X211D, X211C, X211B, X184E, X184D,
X183C, X183B, 3RX4A, 3RX3D, 3RX6E, 3RX6D, 3RX1B, 3RX1A,
3RX0D, 3RX0C, 1XJ5A,1XJ4E 1XJ4B, 1XJ4A

2010 - 2011 G37
Sedan and Coupe

X458D, X450A, X439E, X439D, X439C, X439A, X438E, X438D,
X438C, X382D, X382C, X380C, X380B, X359D, X359C, X351B,
X351A, X350E, X184E, X184D, X183C, X183B, X211E, X211D,
X211C, X211B, 3RX6E, 3RX6D, 3RX4A, 3RX3D, 3RX1B, 3RX1A,
3RX0D, 3RX0C, 1XJ5A, 1XJ4E 1XJ4B, 1XJ4A

2009 - 2012 G37
Convertible

X450B, X382B, X212A, X185C, 1XJ2D, 3RX9C
X436E, X439B, X359E, X352C

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7. Follow the on-screen instructions to navigate C-III plus and reprogram the ECM or TCM.

NOTE:
•

In some cases, more than one new P/N for reprogramming is available.
¾ In this case, the screen in Figure 3 displays.
¾ Select and use the reprogramming option that does not have the message “Caution! Use ONLY
with ITBXX-XXX”.

•

If you get this screen and it is blank (no reprogramming listed), it means there is no reprogramming
available for this vehicle.

Figure 3

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8. When the screen in Figure 4 displays, reprogramming is complete.
NOTE: If the screen in Figure 4 does not display (reprogramming does not complete), refer to the
information on the next page.
9. Disconnect the battery charger from the vehicle.
10. Select Next.

Step
10

Figure 4
NOTE:
•

In the next steps (page 10):
1. For ECM reprogramming you will perform Throttle Valve Closed Position, Idle Air Volume
Learn, Accelerator Closed Position, and DTC erase.
2. For TCM reprogramming, only DTC erase is needed.

•

These operations are required before C-III plus will provide the final reprogramming confirmation
report.

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ECM/TCM recovery:
Do not disconnect plus VI or shut down C-III plus if reprogramming does not complete.
If reprogramming does not complete and the “!?” icon displays as shown in Figure 5:
•

Check battery voltage
(12.0–15.5 V).

•

Ignition is ON, engine OFF.

•

External Bluetooth® devices are
OFF.

•

All electrical loads are OFF.

•

Select retry and follow the on
screen instructions.

•

“Retry” may not go through on first
attempt and can be selected more
than once.

Figure 5

If reprogramming does not complete and the “X” icon displays as shown in Figure 6:
•

Check battery voltage
(12.0 – 15.5 V).

•

CONSULT A/C adapter is plugged
in.

•

Ignition is ON, engine OFF.

•

Transmission is in Park.

•

All C-III plus / VI cables are securely
connected.

•

All C-III plus updates are installed.

•

Select Home, and restart the
reprogram procedure from the
beginning.

Figure 6

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11. Follow the on-screen instructions to perform the following:
•

Throttle Valve Closed Position

•

Idle Air Volume Learn (IAVL)
NOTE:
o Listed below are the conditions required for IAVL to complete.
o If IAVL does not complete within a few minutes, a condition may be out of range.
¾ Engine coolant temperature: 70 -105° C (158 - 221°F)
¾ Battery voltage: More than 12.9V (At idle)
¾ Selector lever: P or N
¾ Electric load switch: OFF (Air conditioner, headlamp, rear window defogger)
¾ Steering wheel: Neutral (Straight-ahead position)
¾ Vehicle speed: Stopped
¾ Transmission: Warmed up (ATF TEMP SE less than 0.9V)

•

Accelerator Pedal Close Position Learning

•

Erase DTCs

Continue to the next page.

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12. When the entire reprogramming process is complete, the screen in Figure 7 will display.
13. Verify the before and after part numbers are different.
14. Print a copy of this screen (Figure 7) and attach it to the repair order for warranty documentation.
15. Select Confirm.

Step
13

Step
14
Step
15

Figure 7
16. Make sure you have performed both ECM and TCM reprogramming.
17. Close C-III plus.
18. Turn the ignition OFF.
19. Disconnect the plus VI from the vehicle.
20. Test drive the vehicle and make sure it operates correctly and the MIL is OFF.
•

If the MIL comes ON, go back to ASIST for further diagnostic information.

•

Diagnosis and repairs beyond ECM or TCM reprogramming are not covered by this bulletin.

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