Service Bulletin

Mazda North American Operations
Irvine, CA 92618-2922

© 2014 Mazda Motor of America, Inc.

Subject:

Bulletin No:

CHECK ENGINE LIGHT ON WITH DTC P0300:00, P0301:00, P0302:00, P0303:00
AND/OR P0304:00 AND INCREASED ENGINE OIL LEVEL
Last Issued:

01-019/14
12/12/2014

2012-13 MAZDA3 AND 2013-15 CX-5 (SKYACTIV 2.0L) - CHECK ENGINE LIGHT ON WITH DTC P0300:00,
P0301:00, P0302:00, P0303:00 AND/OR P0304:00 AND INCREASED ENGINE OIL LEVEL

APPLICABLE MODEL(S)/VINS
2012-2013 Mazda3 (SKYACTIV 2.0L)
2013 CX-5 (SKYACTIV 2.0L A/T) vehicles with VINs lower than JM3KE******148430 (produced before September 7, 2012)
2013-2015 CX-5 (SKYACTIV 2.0L M/T) vehicles with VINs lower than JM3KE******552473 (produced before
November 12, 2014)

DESCRIPTION
Some vehicles may experience the Check Engine Light ON with DTC P0300:00, P0301:00, P0302:00,
P0303:00 and/or P0304:00 stored in memory and accompanied with an increased engine oil level.
P0300:00: Random misfire detected
P0301:00: Cylinder No.1 misfire detected
P0302:00: Cylinder No.2 misfire detected
P0303:00: Cylinder No.3 misfire detected
P0304:00: Cylinder No.4 misfire detected
This is caused by improper control logic of the PCM. In cold weather below 14 °F (-10 °C) with repeated short
time operation, excess fuel injected in the cylinders may accumulate in the crank case and result in increased
oil level and misfire.
Customers having this concern should have their vehicle repaired using the following repair procedure.

REPAIR PROCEDURE
1. Verify engine oil is overfilled with gasoline.
2. Replace the engine oil.
NOTE: Oil filter is not covered under this warranty repair.
3. Reboot the IDS to clear memory before reprogramming.

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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.

Bulletin No: 01-019/14

Last Issued: 12/12/2014

© 2014 Mazda Motor of America, Inc.

4. Using IDS 93.02 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.
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.

5. After performing the PCM reprogramming procedure, verify the repair by starting the engine and making
sure there is no Check Engine Light ON or abnormal warning lights present.
NOTE:
•
•

If any DTCs should remain after performing DTC erase, diagnose the DTCs using MS3 online
instructions or Workshop Manual section 01-02.
After PCM reprogramming, it is no longer necessary to road test the vehicle to “relearn” KAM
(Keep Alive Memory).

CALIBRATION INFORMATION
Mazda3

Engine

Transmission

File Name

Calif (PZEV)

M/T

PUYG-188K2-A

A/T

PUYH-188K2

M/T

PSZG-188K2-C

A/T

PSZH-188K2-C

M/T

PSZJ-188K2-C

A/T

PSZK-188K2-C

Calif (ULEV)

Fed

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Bulletin No: 01-019/14

Last Issued: 12/12/2014

© 2014 Mazda Motor of America, Inc.

CX-5

Engine

Transmission

Drive

File Name

Memo

Calif

M/T

2WD

PE01-188K2-M

Mitsubishi

PE1G-188K2-L

Denso

PE02-188K2-L

Mitsubishi

PE1H-188K2-K

Denso

PE1B-188K2-L

Mitsubishi

PE1K-188K2-K

Denso

PE1C-188K2-M

Mitsubishi

PE1L-188K2-L

Denso

PE1D-188K2-L

Mitsubishi

PE1M-188K2-K

Denso

PE1F-188K2-L

Mitsubishi

PE1P-188K2-K

Denso

A/T

2WD

4WD

Fed

M/T

A/T

2WD

2WD

4WD

NOTE: It is not necessary to order a PCM part for this repair procedure.

WARRANTY INFORMATION
NOTE:
•
•
•

This warranty information applies only to verified customer complaints on vehicles eligible for warranty repair.
This repair will be covered under Fed. Emission Warranty (long term) or Calif. PZEV/ULEV Emission Warranty.
Additional diagnostic time cannot be claimed for this repair.

Warranty Type

A

Symptom Code

6X

Damage Code

9W

DTC Code
Part Number Main Cause
Quantity
Operation Number / Labor Hours

P0300, P0301, P0302, P0303 or P0304
5555 RP PCM
0
XXKBLXFX / 0.6 Hrs.
(Oil change and reprogramming)

NOTE: The oil filter is not covered under this TSB. Claim the engine oil (4.2 US qt {4.0 L, 3.5 lmp qt}) as a
related part.
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