Technical
Service Bulletin

Mazda North American Operations
Irvine, CA 92618-2922

Subject:
DTC P064A (FUEL PUMP CONTROL MODULE ERROR) IS STORED IN
PCM MEMORY WITHOUT DRIVABILITY CONCERN

Bulletin No.: 01-010/17

Last Issued: 07/26/2017

DESCRIPTION
APPLICABLE MODEL(S)/VINS
2016-2017 CX-9 vehicles with VINs lower than JM3TC******140178 (produced before March 7, 2017)
Some vehicles may experience DTC P064A stored in the PCM memory. There is no drivability concern and
a technician may find this DTC during diagnosis for another concern.



P064A:00 - (Fuel Pump Control Module Error)

[Detection Condition]
The difference between the actual fuel pressure and the target fuel pressure is 10 kPa {0.10 kgf/cm2, 1.5
psi} or more, even though the fuel pressure feedback amount on the low pressure side remains high.
[Diagnosis Support Note]







This is a continuous monitor (other).
The check engine light does not illuminate.
FREEZE FRAME DATA is not available.
Snapshot data is available.
DTC is stored in the PCM memory.

The DTC may be set by an inadequate detection logic. To eliminate this concern, the detection function of
DTC P064A has been disabled.

REPAIR PROCEDURE
If you find DTC P064A stored in PCM memory during any service opportunity, check if there is any
drivability concern accompanied and/or any other fuel pump related DTC, especially P0087, stored.
- If there is any drivability concern and/or other DTC accompanied, perform diagnosis according to the
instructions on MGSS online.
- If there is no drivability concern and no other fuel pump related DTC, reprogram the PCM with Mazda
Modular Diagnostic System (M-MDS) using IDS 106.03 or later software.

Page 1 of 3
CONSUMER NOTICE: The information and instructions in this bulletin are intended for use by skilled technicians. Mazda technicians utilize the proper tools/
equipment and take training to correctly and safely maintain Mazda vehicles. These instructions should not be performed by “do-it-yourselfers.” Customers
should not assume this bulletin applies to their vehicle or that their vehicle will develop the described concern. To determine if the information applies,
customers should contact their nearest authorized Mazda dealership. Mazda North American Operations reserves the right to alter the specifications and
contents of this bulletin without obligation or advance notice. All rights reserved. No part of this bulletin may be reproduced in any form or by any means,
electronic or mechanical---including photocopying and recording and the use of any kind of information storage and retrieval system ---without permission in
writing.

© 2017 Mazda North American Operations, U.S.A.

Bulletin No.: 01-010/17

Last Issued: 07/26/2017

1. Reboot the IDS to clear memory before reprogramming.
2. Using IDS 106.03 or later software, reprogram the PCM to the latest calibration (refer to “Calibration
Information” table) by following the “Module Reprogramming”
procedure.
NOTE:
• Always update the IDS tool first, then follow on-screen instructions to download the needed calibration file
for PCM reprogramming.
• It is not necessary to remove any fuses or relays during PCM reprogramming when the IDS screen
prompts you to do so. You may accidentally stop power to one of the PCM
terminals and cause the PCM to be blanked, or you may receive error messages during the IDS
reprogramming procedure.
• IDS shows the calibration part numbers after programming the PCM.
• Please be aware that PCM calibration part numbers and file names listed in any Service Bulletin may
change due to future releases of IDS software, and additional
revisions made to those calibrations for service related concerns.
• When reprogramming a PCM, IDS will always display the “latest” calibration P/N available for that vehicle.
If any calibration has been revised/updated to contain new
information for a new service concern/issue, it will also contain all previously released calibrations.
• Start/Stop button vehicles only: DO NOT press the start/stop button during the reprogramming process.
• When performing this procedure, we recommend using the “Power Supply” mode in the Battery
Management System to keep the vehicle battery up to capacity. If a different
charger is used, make sure it does not exceed 20 AMPS. If it exceeds 20 AMPS, it could damage the VCM.
3. After performing the PCM reprogramming procedure, clear DTCs.
4. After clearing DTCs, start the engine and confirm that no warning lights stay on.
NOTE:
• If any DTCs should remain after performing DTC erase, diagnose the DTCs using MGSS online
instructions or Workshop Manual section 01-02.
• Disconnect the negative battery cable and wait for 30 seconds or more to reset the fuel control learning
data.

CALIBRATION INFORMATION
Spec. Drive
USA

File Name

Note

2WD PYFL-188K2-L Improved from "-J"
4WD PYFM-188K2-L Improved from "-J"

Mexico 2WD PYGN-188K2-H Improved from "-G"
4WD PYGP-188K2-H Improved from "-G"
NOTE: It is not necessary to order a PCM part for this repair procedure.

Page 2 of 3
CONSUMER NOTICE: The information and instructions in this bulletin are intended for use by skilled technicians. Mazda technicians utilize the proper tools/
equipment and take training to correctly and safely maintain Mazda vehicles. These instructions should not be performed by “do-it-yourselfers.” Customers
should not assume this bulletin applies to their vehicle or that their vehicle will develop the described concern. To determine if the information applies,
customers should contact their nearest authorized Mazda dealership. Mazda North American Operations reserves the right to alter the specifications and
contents of this bulletin without obligation or advance notice. All rights reserved. No part of this bulletin may be reproduced in any form or by any means,
electronic or mechanical---including photocopying and recording and the use of any kind of information storage and retrieval system ---without permission in
writing.

© 2017 Mazda North American Operations, U.S.A.

Bulletin No.: 01-010/17

Last Issued: 07/26/2017

WARRANTY INFORMATION
NOTE:
• This warranty information applies only to verified customer complaints on vehicles eligible for warranty
repair.
• This repair will be covered under Federal Emission Warranty term (long term).
• Additional diagnostic time cannot be claimed for this repair.

Warranty Type

A

Symptom Code

65

Damage Code

9W

Part Number Main Cause
Quantity
Operation Number / Labor
Hours:

5555-RP-PCM
0
XXN78XFX / 0.3 Hrs.

NOTE:If this concern is found during the repair for another concern that is to be repaired by PCM
reprograming, do not claim for this concern. Claim for other concern.

Page 3 of 3
CONSUMER NOTICE: The information and instructions in this bulletin are intended for use by skilled technicians. Mazda technicians utilize the proper tools/
equipment and take training to correctly and safely maintain Mazda vehicles. These instructions should not be performed by “do-it-yourselfers.” Customers
should not assume this bulletin applies to their vehicle or that their vehicle will develop the described concern. To determine if the information applies,
customers should contact their nearest authorized Mazda dealership. Mazda North American Operations reserves the right to alter the specifications and
contents of this bulletin without obligation or advance notice. All rights reserved. No part of this bulletin may be reproduced in any form or by any means,
electronic or mechanical---including photocopying and recording and the use of any kind of information storage and retrieval system ---without permission in
writing.

© 2017 Mazda North American Operations, U.S.A.