Classification:

Reference:

Date:

EC17-031B

ITB17-050B

November 6, 2023

MIL ON WITH DTC(S) STORED IN THE ECM
This bulletin has been amended. See AMENDMENT HISTORY on the last page.
Please discard previous versions of this bulletin.

APPLIED VEHICLES:
APPLIED ENGINES:

2016-2018 Q50 (V37)
2017 Q60 (CV37)
VR30DDTT

IF YOU CONFIRM
The MIL is ON with one or more of the following DTCs stored in the ECM:











P0544 – EXHAUST GAS TEMP SENSOR 1 B1
P0545 – EXHAUST GAS TEMP SENSOR 1 B1
P0546 – EXHAUST GAS TEMP SENSOR 1 B1
P0547 – EXHAUST GAS TEMP SENSOR 1 B2
P0548 – EXHAUST GAS TEMP SENSOR 1 B2
P0549 – EXHAUST GAS TEMP SENSOR 1 B2
P2080 – EXHAUST GAS TEMP SENSOR 1 B1
P2081 – EXHAUST GAS TEMP SENSOR 1 B1
P2082 – EXHAUST GAS TEMP SENSOR 1 B2
P2083 – EXHAUST GAS TEMP SENSOR 1 B2

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.

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.
1/12

SERVICE PROCEDURE
ECM Reprogram
IMPORTANT: Before starting, make sure:


ASIST on the CONSULT PC has been synchronized (updated) to the current date.



All CONSULT software updates (if any) have been installed.

HINT:


Most instructions for reprogramming with CONSULT 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 REPROGRAMMING FOR ENGINE OR TRANSMISSION CONTROL
MODULE (ECM OR TCM)" 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:
o

Engine coolant temperature: 70 -100°C
(158 - 212°F)

o

Battery voltage: More than 12.9V (At idle)

o

Transmission: Warmed up
Figure A



After reprogramming is complete, you will be required to perform Throttle Valve Closed Position, Idle
Air Volume Learn, Accelerator Closed Position, and DTC erase.

CAUTION:


Connect a battery maintainer or smart charger, set to reflash mode or a similar setting, to ensure
the battery voltage stays between 12.0 V and 15.5 V.. If the vehicle battery voltage drops below
12.0V or above 15.5V during reprogramming, the ECM may be damaged.



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

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ITB17-050B

1.

Connect the VI to the vehicle.

2.

Start CONSULT.

3.

Wait for the VI to be recognized.
 The serial number will display when the VI is recognized (Figure 1).

4.

Select Re/programming, Configuration.

Figure 1

5.

Follow the on-screen instructions and navigate CONSULT to the screen shown in Figure 2 on the next
page.

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ITB17-050B

6.

When you get to the screen shown in Figure 2, confirm that a reprogram is available as follows.
a. Find the ECM Part Number and write it on the repair order.
HINT: This is the current ECM Part Number (P/N).

xxxxxxxxxxxxxx

Current ECM P/N

xxxxx
xxxxxxxxxxxx
xxxxxxxxxxxxxx
xxxxxxxxxxxxxx

Figure 2

b. Compare the P/N you wrote down to the numbers in the CURRENT ECM PART NUMBER column
in Table A, beginning on the next page.


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



If there is not a match, this bulletin does not apply. Refer to ASIST for further diagnostic and
repair information.

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ITB17-050B

Table A
MODEL

CURRENT ECM PART NUMBER: 237105CF1A,
5CF3A,
5CF5A,
5CF7A,

2016 Q50

2017 Q50

2018 Q50

5CF1B, 5CF1C, 5CF2A, 5CF2B, 5CF2C
5CF3B, 5CF3C, 5CF4A, 5CF4B, 5CF4C
5CF5B, 5CF5C, 5CF6A, 5CF6B, 5CF6C
5CF7B, 5CF7C, 5CF8A, 5CF8B, 5CF8C
5CF9A, 5CF9B, 5CF9C
5CH3A, 5CH3B, 5CH3C, 5CH4A, 5CH4B, 5CH4C
5CH7A, 5CH7B, 5CH7C, 5CH8A, 5CH8B, 5CH8C
5CH9A, 5CH9B, 5CH9C
5CJ2A, 5CJ2B, 5CJ2C, 5CJ3A, 5CJ3B, 5CJ3C
5CJ4A, 5CJ4B, 5CJ4C, 5CJ5A, 5CJ5B, 5CJ5C
5CJ6A, 5CJ6B, 5CJ6C, 5CJ7A, 5CJ7B, 5CJ7C
5CJ8A, 5CJ8B, 5CJ8C, 5CJ9A, 5CJ9B, 5CJ9C
5CD5A, 5CD5B, 5CD5C, 5CD6A, 5CD6B, 5CD6C
6HA0A, 6HA0B, 6HA0C, 6HA1A, 6HA1B, 6HA1C
6HA2A, 6HA2B, 6HA2C, 6HA3A, 6HA3B, 6HA3C
6HA4A, 6HA4B, 6HA4C, 6HA5A, 6HA5B, 6HA5C
6HA6A, 6HA6B, 6HA6C, 6HA7A, 6HA7B, 6HA7C
6HF0A, 6HF0B, 6HF0C, 6HF1A, 6HF1B, 6HF1C
6HF2A, 6HF2B, 6HF2C, 6HF3A, 6HF3B, 6HF3C
6HF4A, 6HF4B, 6HF4C, 6HF5A, 6HF5B, 6HF5C
6HF6A, 6HF6B, 6HF6C, 6HF7A, 6HF7B, 6HF7C
6HG2A, 6HG2B, 6HG2C, 6HG3A, 6HG3B, 6HG3C
6HG4A, 6HG4B, 6HG4C, 6HG5A, 6HG5B, 6HG5C
6HG6A, 6HG6B, 6HG6C, 6HG7A, 6HG7B, 6HG7C
6HG8A, 6HG8B, 6HG8C, 6HG9A, 6HG9B, 6HG9C
6HB0A, 6HB1A, 6HB2A, 6HB3A, 6HB4A, 6HB5A, 6HB6A, 6HB7A
6HD4A, 6HD5A, 6HD6A, 6HD7A, 6HD8A, 6HD9A
6HJ0A, 6HJ1A, 6HJ2A, 6HJ3A, 6HJ4A, 6HJ5A, 6HJ6A, 6HJ7A
6HJ8A, 6HJ9A

Continued on the next page.

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ITB17-050B

Table A (continued)
MODEL

2017 Q60

CURRENT ECM PART NUMBER: 237105CC0A, 5CC0C, 5CC0D, 5CC0E
5CC1A, 5CC1B, 5CC1C, 5CC1D
5CC8A, 5CC8B, 5CC8C, 5CC8D
5CC9A, 5CC9B, 5CC9C, 5CC9D
5CG0A, 5CG0C, 5CG0D, 5CG0E
5CG1A, 5CG1B, 5CG1C, 5CG1D
5CG5A, 5CG5B, 5CG5C, 5CG5D
5CG6A, 5CG6B, 5CG6C, 5CG6D
5CG7A, 5CG7B, 5CG7C, 5CG7D
5CG8A, 5CG8B, 5CG8C, 5CG8D
5CH1A, 5CH1B, 5CH1C, 5CH1D
5CH2A, 5CH2C, 5CH2D, 5CH2E
5CH5A, 5CH5C, 5CH5D, 5CH5E
5CH6A, 5CH6C, 5CH6D, 5CH6E
5CJ0A, 5CJ0B, 5CJ0C, 5CJ0D
5CJ1A, 5CJ1B, 5CJ1C, 5CJ1D
5CK1A, 5CK1B, 5CK1C, 5CK1D
5CK2A, 5CK2B, 5CK2C, 5CK2D
5CK3A, 5CK3B, 5CK3C, 5CK3D
5CK4A, 5CK4B, 5CK4C, 5CK4D
5CL5A, 5CL5B, 5CL5C, 5CL5D
5CL6A, 5CL6B, 5CL6C, 5CL6D
5CL7A, 5CL7B, 5CL7C, 5CL7D
5CL8A, 5CL8B, 5CL8C, 5CL8D

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ITB17-050B

7.

Follow the on-screen instructions to navigate CONSULT and reprogram the ECM.
HINT:


In some cases, more than one new P/N for reprogramming is available.
o In this case, the screen in Figure 3 displays.
o Select and use the reprogramming option that does not have the message “Caution! Use
ONLY with ITBXX-XXX”.
o If you get this screen and it is blank (no reprogramming listed), it means there is no
reprogramming available for this vehicle. Close CONSULT and disconnect from the vehicle.

xxxxx-xxxxx

xxxxx-xxxxx

xxxxxxxxxxxxxxxxxxxxxx

xxxxx-xxxxx

xxxxx-xxxxx

xxxxxxxxxxxxxxxxxxxxxx

Figure 3

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ITB17-050B

8.

When the screen in Figure 4 displays, reprogramming is complete.
HINT: 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 maintainer/smart charger from the vehicle.

10.

Select Next.

Figure 4

HINT:


In the next steps (page 10), you will perform Throttle Valve Closed Position, Idle Air Volume Learn,
Accelerator Closed Position, and DTC erase.



These operations are required before CONSULT will provide the final reprogramming confirmation
report.

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ITB17-050B

Reprogram Recovery
If reprogramming does not complete and the “!?” symbol displays, as shown in Figure 5:



Check battery voltage (12.0 – 15.5V).



Ignition is ON, engine is OFF.



External Bluetooth® devices are OFF.



All electrical loads are OFF.



Select Retry and follow the on screen
instructions.
HINT: 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” symbol displays, as shown in Figure 6:



Check battery voltage (12.0 – 15.5V).



CONSULT A/C adapter is plugged in.



Ignition is ON, Engine is OFF.



Transmission in Park.



All CONSULT / VI cables are securely
connected.



All CONSULT updates are installed.



Select Home, and then restart the
reprogram procedure from the beginning.
Figure 6

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ITB17-050B

11.

Follow the on-screen instructions to perform the following:


Throttle Valve Closed Position



Idle Air Volume Learn (IAVL)
HINT:
o Listed below are common conditions required for IAVL to complete.
o If IAVL does not complete within a few minutes, a condition may be out of range.
o Refer to the appropriate Electronic Service Manual (ESM) for specific conditions required for the
vehicle you are working on.








Engine coolant temperature: 70 -100° C (158 - 212°F)
Battery voltage: More than 12.9V (At idle)
Selector lever: P or N
Electric load switch: OFF (Air conditioner, headlamp, rear window defogger)
Steering wheel: Neutral (Straight-ahead position)
Vehicle speed: Stopped
Transmission: Warmed up



Accelerator Pedal Close Position Learning



Erase DTCs

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ITB17-050B

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.

xxxxx
xxxxx
xxxxxxx
xxxxxxxxxxxxxxxxx

xxxxxxxxxxxxxxxxx

Figure 7
16.

Close CONSULT.

17.

Turn the ignition OFF.

18.

Disconnect the VI from the vehicle.

19.

Test drive the vehicle and make sure it operates correctly and the MIL is OFF.


This bulletin does not cover any repairs beyond ECM reprograming.



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

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ITB17-050B

CLAIMS INFORMATION
Submit a Primary Part (PP) type line claim using the following claims coding:
DESCRIPTION
PFP
OP CODE
SYM
Reprogram Engine Control Module
(1)
DE97AA
HD
(1)
(2)
(3)

DIA
32

FRT
(2) (3)

Refer to the electronic parts catalog and use the ECM assembly part number (23710-*****) as the
Primary Failed Part (PFP).
Reference the current Infiniti Warranty Flat Rate Manual and use the indicated FRT.
FRT allows adequate time to access DTC codes and reprogram ECM. No other diagnostic procedures
subsequently required. Do NOT claim any Diagnostic Op Codes with this claim.

AMENDMENT HISTORY
PUBLISHED DATE

REFERENCE

DESCRIPTION

September 27, 2017

ITB17-050

Original bulletin published

March 10, 2022

ITB17-050A

Table A revised

November 6, 2023

ITB17-050B

APPLIED VEHICLES and Table A revised, and “NOTE”
references changed to “HINT”

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ITB17-050B