05-004-18-3466

Technical
Service Bulletin
Mazda North American Operations
Irvine, CA 92618-2922
Subject:
CHECK ENGINE LIGHT AND A/T WARNING LIGHT ON WITH ONE
OR MORE OF THESE DTCS
(P0842, P0847, P0872, P0877, P0780, P1738) STORED IN TCM
MEMORY
Bulletin No.: 05-004/18
Last Issued: 04/16/2018
BULLETIN NOTES
This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted below in Red.
Previously Issued TSBs:
Date(s) Issued
05-005/16
07/07/16
05-002/15
12/03/15, 10/07/15, 05/27/15, 04/24/15, 03/30/15, 03/26/15 and 03/10/15
05-005/14
04/29/14, 04/09/14, 03/28/14, and 3/25/14
05-003/14
04/04/14 and 02/21/14
05-005/13
109/23/13, 9/25/13,12/16/13, and 12/17/13
APPLICABLE MODEL(S)/VINS







2012-2013 Mazda3 with SKYACTIV 6AT
2014-2018 Mazda3 with SKYACTIV 6AT (Japan built - VINS starting with JM1)
2014-2018 Mazda3 with SKYACTIV 6AT (Mexico built - VINS starting with 3MZ)
2013-2018 CX-5 with SKYACTIV 6AT
2014-2018 Mazda6 with SKYACTIV 6AT
2016-2018 CX-3 with SKYACTIV 6AT
2016-2018 CX-9 with SKYACTIV 6AT
DESCRIPTION
Some vehicles may experience the check engine light and automatic transaxle warning light ON with one or
more of these DTCs stored in the TCM memory (P0842, P0847, P0872, P0877, P0780, P1738).






P0842:00 - Oil pressure switch No. 1 (oil pressure switch B) stuck on
P0847:00 - Oil pressure switch No. 2 (oil pressure switch A) stuck on
P0872:00 - Oil pressure switch No. 3 (oil pressure switch A) stuck on
P0877:00 - Oil pressure switch No. 4 (oil pressure switch B) stuck on
P0780:00 - Gear shifting malfunction
P1738:00 Automatic transaxle internal malfunction
This is caused by the oil pressure switch A and/or B at the control valve body temporarily or permanently
getting stuck due to contamination entering the passage. To correct the problem, some mass production
changes have been implemented to reduce contamination and improve the DTC diagnostic logic.
Page 1 of 13
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.
© 2018 Mazda North American Operations, U.S.A.
Bulletin No.: 05-004/18
Last Issued: 04/16/2018
NOTE: If the vehicle also has a delayed engagement concern, this TSB is not applicable. Refer to MGSS
online for proper diagnosis and repair procedure.
Customers having this concern should have their vehicle repaired using the following repair procedure.
REPAIR PROCEDURE
1. Verify customer concern.
2. Check for DTCs.


If any of the DTCs (P0842, P0847, P0872, P0877, P0780, P1738) is stored in TCM
memory, go to step 3.
If any other DTCs are present or no DTCs are present, perform troubleshooting according
to MGSS online.
3. If the vehicle is in the applicable VIN range listed below, proceed to TCM Reprogramming.”
Otherwise, proceed to “Parts Replacement.”
2012-2013 Mazda3 JM1BL******500001 - 999999
2014-2015 Mazda3 JM1BM******100001 - 299999 (Japan built)
2014-2015 Mazda3 3MZBM******100001 - 199999 (Mexico built)
2014-2015 Mazda6 JM1GJ******100001 - 299999
2013-2015 CX-5 JM3KE******100001 - 599999
NOTE:


If the concern has occurred with older TCM file, parts replacement is not necessary.
If the concern has occurred with new TCM file, proceed to Parts Replacement.
TCM Reprogramming
1. Reboot the IDS to clear memory before reprogramming.
2. Using IDS 100.5 or later software, reprogram the TCM 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 TCM reprogramming.
It is not necessary to remove any fuses or relays during TCM reprogramming when the IDS
screen prompts you to do so. You may accidentally stop power to one of the TCM terminals
and cause the TCM to be blanked, or you may receive error messages during the IDS
reprogramming procedure.
IDS shows the calibration part numbers after programming the TCM.
Page 2 of 13
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.
© 2018 Mazda North American Operations, U.S.A.
Bulletin No.: 05-004/18




Last Issued: 04/16/2018
Please be aware that TCM 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 TCM, 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 TCM reprogramming procedure, verify the repair by starting the engine and
making sure there is no Check Engine Light or abnormal warning lights present.
NOTE:


If any DTCs should remain after performing DTC erase, diagnose the DTCs using MGSS
online.
After TCM reprogramming, it is no longer necessary to road test the vehicle to “relearn”
KAM (Keep Alive Memory).
4. Perform “Initial Learning” according to the instructions on MGSS online (INITIAL LEARNING
[FW6AEL, FWAX-EL])
Parts Replacement
NOTE: Proceed with Parts Replacement only if concern re-occurs after TCM reprogramming for applicable
vehicles.
1. Remove the oil pan from the transaxle according to the instructions on MGSS online (CONTROL
VALVE BODY REMOVAL/INSTALLATION [FW6AEL, FWAX-EL]).
Page 3 of 13
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.
© 2018 Mazda North American Operations, U.S.A.
Bulletin No.: 05-004/18
Last Issued: 04/16/2018
2. Remove the oil strainer (1) and the oil strainer O-rings (2) from the transaxle.
3. Remove oil pressure switch A (1).
a. At oil pressure switch A, insert a precision flathead screwdriver (2) and move it in the direction of
the arrow in the figure to disconnect the oil pressure switch A connector (3).
Page 4 of 13
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.
© 2018 Mazda North American Operations, U.S.A.
Bulletin No.: 05-004/18
Last Issued: 04/16/2018
b. Remove the bolts for oil pressure switch A (1).
c. Detach the tab shown and remove oil pressure switch A from the control valve body using an
appropriate tool (such as a fastener remover)
Page 5 of 13
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.
© 2018 Mazda North American Operations, U.S.A.
Bulletin No.: 05-004/18
Last Issued: 04/16/2018
1. Push the tab (1) of oil pressure switch A.
CAUTION: If the tab is broken during removal, make sure to remove the broken pieces.
2. Pull out oil pressure switch A by shaking it.
CAUTION: When removing oil pressure switch A, be careful not to damage the transaxle fluid
temperature (TFT) sensor harness nearby.
Page 6 of 13
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.
© 2018 Mazda North American Operations, U.S.A.
Bulletin No.: 05-004/18
Last Issued: 04/16/2018
4. Remove oil pressure switch B.
a. Insert a precision flathead screwdriver (1) and move it in the direction of the arrow as shown to
disconnect the oil pressure switch B connector (2).
b. Remove oil pressure switch B (1).
5. Install new oil pressure switches A and B.
6. Verify that the tab of each oil pressure switch (A and B) is attached correctly.
Page 7 of 13
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.
© 2018 Mazda North American Operations, U.S.A.
Bulletin No.: 05-004/18
Last Issued: 04/16/2018
7. Install the bolts for oil pressure switches A (1) and B (2).
Tightening torque: 9-10 N•m {92-101 khf•cm, 80-88 in•lbf}
8. Connect the oil pressure switch A and oil pressure switch B connectors.
9. Install the oil strainer with new oil strainer O-rings according to the instructions on MGSS online
(CONTROL VALVE BODY REMOVAL/INSTALLATION [FW6AEL, FWAX-EL]).
NOTE: If there is a large amount of foreign material at the bottom of the oil pan, replace the oil strainer
with a new one.
Page 8 of 13
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.
© 2018 Mazda North American Operations, U.S.A.
Bulletin No.: 05-004/18
Last Issued: 04/16/2018
10. Install the oil pan according to the instructions on MGSS online (CONTROL VALVE BODY
REMOVAL/INSTALLATION [FW6AEL, FWAX-EL]).
CAUTION: Clean any remaining silicone sealant off the contact surfaces of the transaxle case and oil
pan.
a. Apply a light coat of silicon sealant to the contact surfaces of the oil pan and transaxle case.
b. Install the oil pan with new bolts before the applied sealant starts to harden.
Tightening torque: 8-10 N•m {82-101 khf•cm, 71-88 in•lbf}
11. Install the removed parts.
12. Add ATF according to the instructions on MGSS online (AUTOMATIC TRANSAXLE FLUID (ATF)
REPLACEMENT [FW6A-EL] ).
13. Connect the negative battery cable.
14. Perform the "Initial Learning Procedure" according to the instructions on MGSS online (INITIAL
LEARNING PROCEDURE).
Page 9 of 13
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.
© 2018 Mazda North American Operations, U.S.A.
Bulletin No.: 05-004/18
Last Issued: 04/16/2018
15. Perform the "Mechanical System Test" according to the instructions on MGSS online
(MECHANICAL SYSTEM TEST).
16. Verify repair.
CALIBRATION INFORMATION
2012-2013 Mazda3
TCM File Name Production Date Range
PEY0-21PS1-A Before March 31, 2013
PE08-21PS1-N After March 31, 2013
2014-2015 Mazda3 (US spec)
TCM File Name Engine i-ELOOP
VIN
PE5B-21PS1-D PE (2.0L) without JM1 (Japan built)
PEDB-21PS1-B
with
PY2S-21PS1-D PY (2.5L) with
PEAR-21PS1-A PE (2.0L) without 3MZ (Mexico built)
2013 CX-5 (US spec)
TCM File Name Drive Kickdown Switch
Production Date Range
PEX3-21PS1 (*1) 2WD
without
Before March 31, 2013
PE02-21PS1-J
After March 31, 2013
PEX1-21PS1-A
Service part after August 1, 2013
PEY1-21PS1-A
with
Before March 31, 2013
PEAS-21PS1-C
After March 31, 2013
PEX3-21PS1 (*2) 4WD
without
Before March 31, 2013
PE1B-21PS1-J
After March 31, 2013
PEX2-21PS1-A
Service part after August 1, 2013
PEY2-21PS1-A
with
Before March 31, 2013
PEAT-21PS1-C
After March 31, 2013
NOTE:


(*1): Older version is PE02-21PS1-G.
(*2): Older version is PE1B-21PS1-G.
Page 10 of 13
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.
© 2018 Mazda North American Operations, U.S.A.
Bulletin No.: 05-004/18
Last Issued: 04/16/2018
2014-2015 CX-5 (US spec)
TCM File Name Engine Drive Production Date Range
PEY5-21PS1-A PE (2.0L) 2WD Before March 31, 2013
PE1H-21PS1-D
After March 31, 2013
PEY6-21PS1-A
4WD Before March 31, 2013
PE1K-21PS1-D
After March 31, 2013
PYY0-21PS1-B PY (2.5L) 2WD Before March 31, 2013
PY09-21PS1-H
After March 31, 2013
PYY1-21PS1-B
4WD Before March 31, 2013
PY2W-21PS1-F
After March 31, 2013
Mazda6 (US spec)
TCM File Name i-ELOOP Production Date Range
PYY3-21PS1-B without Before March 31, 2013
PY1E-21PS1-H
After March 31, 2013
PY1T-21PS1-C with
-2014-2015 Mazda3 (Mexico spec)
TCM File Name Engine
VIN
PY8F-21PS1-B PY (2.5L) JM1 (Japan built)
PEGS-21PS1-A PE (2.0L) 3MZ (Mexico built)
PEDE-21PS1-A
2013 CX-5 (Mexico spec)
TCM File Name Engine Drive
PE2T-21PS1-F PE (2.0L) 2WD
PE2V-21PS1-F
4WD
Page 11 of 13
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.
© 2018 Mazda North American Operations, U.S.A.
Bulletin No.: 05-004/18
Last Issued: 04/16/2018
2014-2015 CX-5 (Mexico spec)
TCM File Name Engine Drive Production Date Range
PEZ7-21PS1-A PE (2.0L) 2WD Before March 31, 2013
PE2P-21PS1-E
After March 31, 2013
PEZ8-21PS1-A
4WD Before March 31, 2013
PE2R-21PS1-E
After March 31, 2013
PYZ0-21PS1-B PY (2.5L) 2WD Before March 31, 2013
PY5L-21PS1-F
After March 31, 2013
PYZ1-21PS1-B
4WD Before March 31, 2013
PY5M-21PS1-F
After March 31, 2013
Mazda6 (Mexico spec)
TCM File Name Production Date Range
PYY7-21PS1-B Before March 31, 2013
PY4K-21PS1-D After March 31, 2013
PARTS INFORMATION
Part Number Description Qty.
Notes
FZ01-21-2C0 Switch A
1
--FZ01-21-2J0 Swtich B
1
--9YA0-10Bolt
16
Replace part
615A
FZ01-21-031
O-ring
1
Replace part
FZ01-21-032
O-ring
1
Replace part
FU31-19-423
Plug
1
Replace part
9956-41-400
Drain
1
Replace part
Packing
FZ01-21-500 Oil Strainer 1 Replace if needed. FZ01-21-031 and FZ01-21-032 (O-rings) are included
with this part.
Page 12 of 13
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.
© 2018 Mazda North American Operations, U.S.A.
Bulletin No.: 05-004/18
Last Issued: 04/16/2018
WARRANTY INFORMATION
NOTE:



This warranty information applies only to verified customer complaints on vehicles eligible for
warranty repair.
This repair will be covered under the following Warranty terms:
 Oil pressure switch replacement - Powertrain Limited Warranty / CA PZEV Emission
Warranty where applicable
 TCM reprogramming - Federal Emission Warranty (long term) / CA PZEV Emission
Warranty where applicable
 For vehicles sold and registered in Mexico - New Vehicle Warranty
Additional diagnostic time cannot be claimed for this repair.
Oil Pressure Switch A and B
Replacement
TCM Reprogramming (includes initial
learning)
Warranty Type
A
Symptom Code
6X
Damage Code
9W
DTC
Part Number Main Cause
Quantity
Operation Number / Labor
Hours:
P0842, P0847, P0872, P0877, P0780, P1738
FZ01-21-2C0
5555-RP-TCM
1
0
XXK43ARX / 1.8 Hrs.
XXK43CFX / 0.3 Hrs.
Page 13 of 13
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.
© 2018 Mazda North American Operations, U.S.A.