ITB21-007

Classification:
Reference:
Date:
EC21-004
ITB21-007
April 1, 2021
MIL ON WITH DTC P062F AND/OR P0603 STORED
APPLIED VEHICLES:
2016-2021 Q50 (V37)
2017-2021 Q60 (CV37)
2017-2019 QX30 (H15)
2019-2021 QX50 (J55)
2022 QX55 (J55X)
2016-2020 QX60 (L50)
2015-2021 QX80 (Z62)
NOTE: This TSB only applies to vehicles equipped with direct injection.
IF YOU CONFIRM
The MIL is ON and DTC P062F (EEPROM) and/or P0603 (ECM BACK UP/CIRCUIT) is stored,
And
The customer stated the vehicle was recently started after sitting for an extended period of time (i.e., the battery
voltage was low while attempting to start the engine).
ACTION
1.
Test the vehicle’s 12 volt battery using the Midtronics DSS-5000. Recharge or replace the battery if
necessary.
2.
Erase all DTCs.
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
NOTE: These DTCs may have been stored due to low battery voltage, discharged battery, or battery terminal
disconnections.
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.
3.
Erase DTCs.
4.
Turn the ignition OFF.
5.
Turn the ignition ON and wait for at least 1 second.
6.
Turn the ignition OFF and wait for at least 10 seconds.
7.
Repeat step 5 and step 6 ten times and then proceed to step 8.
8.
Turn the ignition ON.

If P0603 is currently stored as a 1st trip DTC, refer to the ESM for further diagnostic information.

If P0603 is NOT currently stored as a 1st trip DTC, the Service Procedure is complete.
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ITB21-007
PARTS INFORMATION
DESCRIPTION
PART NUMBER
QUANTITY
12 Volt Battery
(1)
1 (if needed)
(1) Reference the battery application chart in Dealer 360 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:
DESCRIPTION
MODEL
Q50 w/VHR
PFP
OP CODE
SYM
DIA
FRT
(1)
GX32AA
HA
32
0.3 hr
(1)
GX32AA
HA
32
0.4 hr
Q50 w/20LG
Q50 w/VR
Q60 w/20LG
Test & Charge Battery,
Erase DTCs
Q60 w/VR
QX50
QX55
QX60
QX80
Q50 w/VQHV
QX30
(1)
Reference the Parts Information table above and use the 12 Volt Battery part number as the Primary
Failed Part (PFP).
OR
If the battery is replaced:
DESCRIPTION
Test & Charge Battery
Replace Battery
(1)
(2)
PFP
OP CODE
GB18AA
(1)
GB181A
SYM
DIA
FRT
HA
32
(2)
Reference the Parts Information table above and use the 12 Volt Battery part number as the Primary
Failed Part (PFP).
Reference the current Infiniti Warranty Flat Rate Manual and use the indicated Flat Rate Time (FRT).
NOTE: FRT allows adequate time to access DTC codes. No other diagnostic procedures subsequently
required. Do NOT claim any Diagnostic Op Codes with this claim.
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ITB21-007
AMENDMENT HISTORY
PUBLISHED DATE
REFERENCE
April 1, 2021
ITB21-007
DESCRIPTION
Original bulletin published
4/4
ITB21-007