Classification:

Reference:

Date:

EL19-056a

ITB19-034a

January 14, 2020

NO START CAUSED BY LOW BATTERY VOLTAGE
This bulletin has been amended. See AMENDMENT HISTORY on the last page.
Please discard previous versions of this bulletin.

APPLIED VEHICLES:
APPLIED ENGINES:

2019 Q70 (Y51)
2019 QX80 (Z62)
VK56VD

IF YOU CONFIRM
An APPLIED VEHICLE will not start due to low battery voltage,
OR
The customer states that the vehicle would not start.

ACTION
1.

Test the vehicle’s 12 volt battery using the Midtronics DSS-5000. Recharge or replace the battery if
necessary.

2.

Refer to step 3 on page 2 to confirm this bulletin applies to the vehicle you are working on.

3.

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.

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SERVICE PROCEDURE
1.

Test the vehicle’s 12 volt battery using the Midtronics DSS-5000.


The DSS-5000 contains internal operating instructions accessed using its touch screen.



The DSS-5000 operating instructions are also found at http://nissan.dss5000.com/. These operating
instructions include a Quick Start Guide and VIN scanning Tips.



There is also a SIR video Vol. 551 that demonstrates the use of the DSS-5000.

2.

Recharge or replace the battery if the test result indicates to do so. If the test result is "Good Battery,"
proceed to step 3.

3.

Using C-III plus, confirm the current ECM part number and write it on the repair order.



If it matches one of the part numbers in Table 1, below, continue to step 4 on the next page.
If it does not match any of the part numbers in Table 1, this bulletin does not apply.

Table 1
MODEL

YEAR

CURRENT ECM PART NUMBER 23710-

Q70

2019

5UY0A, 5UY1A, 5UY2A, 5UY3A

QX80

6JB0B,
6JB1B,
6JB2B,
6JB3B,

2019

6JB0C,
6JB1C,
6JB2C,
6JB3C,

6JB0E
6JB1E
6JB2E
6JB3E

Perform the following before starting the reprogramming procedure to prevent damage to the control unit:







Connect the AC Adapter to the CONSULT PC.
Connect the CONSULT PC to the internet via Wi-Fi or a network cable.
Ensure ASIST on the CONSULT PC has been synchronized (updated) to the current date and all C-III
plus software updates (if any) have been installed.
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, the reprogramming may be interrupted.
Turn OFF all vehicle electrical loads.
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.

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ITB19-034a

HINT:
 If you are not familiar with the reprogramming procedure, click here. This will link you to the
"CONSULT-III plus (C-III plus) ECM Reprogramming" general procedure.
 Take the vehicle for a 10 minute drive in order to meet the following Idle Air Volume Learning
conditions:
o Engine coolant temperature: 70 - 100 °C (158 - 212 °F)
o Battery voltage: More than 12.9 V (At idle)
o Transmission: Warmed up
 When reprogramming is complete, you will be required to perform Throttle Valve Closed Position, Idle
Air Volume Learning, Accelerator Closed Position and DTC erase.
4.

Reprogram the ECM.

5.

After completing Erase ALL DTCs, print a copy of the C-III plus screen showing the before and after part
numbers of the control unit and attach it to the repair order.

PARTS INFORMATION
DESCRIPTION
(1)

PART NUMBER

QUANTITY

12 volt battery
(1)
1 (if needed)
Reference the electronic parts catalog to determine the correct 12 volt battery for the vehicle you are
working on.

CLAIMS INFORMATION
Submit a Primary Part (PP) type line claim using the following claims coding:

(1)

(2)

DESCRIPTION
Reprogram ECM

PFP

OP CODE
DE97AA

SYM

DIA

FRT

Test & Charge Battery

(1)

GB18AA

ZE

32

(2)

Replace Battery
GB181A
Reference the electronic parts catalog and use the Engine Control Module (23703-*****) as the Primary
Failed Part (PFP).
Reference the current Infiniti Warranty Flat Rate Manual and use the indicated Flat Rate Time (FRT).

AMENDMENT HISTORY
PUBLISHED DATE

REFERENCE

DESCRIPTION

October 31, 2019

ITB19-034

Original bulletin published

January 14, 2020

ITB19-034a

APPLIED VEHICLES, ACTION, SERVICE PROCEDURE and
Table 1 revised

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ITB19-034a