ITB19-045

Classification:
Reference:
Date:
EC19-036
ITB19-045
December 18, 2019
MIL ON WITH DTC P0315 STORED
APPLIED VEHICLES:
APPLIED ENGINE:
2019 Q70 (Y51)
VQ37VHR
IF YOU CONFIRM
The MIL is ON with DTC P0315 (CKP SENSOR [POS]) stored in the ECM,
AND
There are no drivability issues.
ACTION
1.
Refer to step 1 on page 2 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.
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SERVICE PROCEDURE
1.
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, continue to step 2.
 If it does not match any of the part numbers in Table 1, this bulletin does not apply. Go back to
ASIST for further diagnostic and repair information.
Table 1
MODEL
Q70
YEAR
CURRENT ECM PART NUMBER 237105UX6A,
5UX7A,
5UX8A,
5UX9A,
5UY4A,
5UY5A,
5UY6A,
5UY7A,
2019
5UX6B,
5UX7B,
5UX8B,
5UX9B,
5UY4B,
5UY5B,
5UY6B,
5UY7B,
5UX6C,
5UX7C,
5UX8C,
5UX9C,
5UY4C,
5UY5C,
5UY6C,
5UY7C,
5UX6D
5UX7D
5UX8D
5UX9D
5UY4D
5UY5D
5UY6D
5UY7D
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 or VI
during reprogramming, the reprogramming may be interrupted.
Turn OFF all vehicle electrical loads.
Turn ON the hazard warning lamps.
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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ITB19-045
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.
2.
Reprogram the ECM.
3.
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.
CLAIMS INFORMATION
Submit a Primary Part (PP) type line claim using the following claims coding:
(1)
(2)
DESCRIPTION
PFP
OP CODE
SYM
DIA
FRT
Reprogram the ECM
(1)
DE97AA
ZE
32
(2)
Reference the Electronic Parts Catalog and use the ECM part number (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
December 18, 2019
ITB19-045
DESCRIPTION
Original bulletin published
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ITB19-045