08-001-20-3696a

Technical
Service Bulletin
Mazda North American Operations
Irvine, CA 92618-2922
Subject:
AIRBAG WARNING LIGHT ON WITH DTC B00A0:09
Bulletin No.: 08-001/20
Last Issued: 06/10/2020
BULLETIN NOTES
This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red text.
Previous TSBs: Date(s) Issued:
08-001/20
4/15/20
APPLICABLE MODEL(S)/VINS
2016-2020 CX-3 vehicles (US spec only) with VINS lower than JM1DK******463689 (producd before
November 5, 2019)
2017-2020 CX-5 vehicles (US spec only) with VINS lower than JM3KF****** 764404 (produced before
December 9, 2019)
DESCRIPTION
Some customers may experience the airbag warning light ON with DTC B00A0:09 stored in the SAS control
module memory when the battery voltage is low.

DTC B00A0:09 (Occupant classification sensor internal signal output unstable)
This concern is caused by the low voltage detection time of the occupant classification sensor (OCS) being
too short during cranking, which causes detection of the DTC unnecessarily. The concern occurs more
often in colder weather when greater electric current is consumed to start the vehicle. To eliminate this
concern, the OCS has been modified to avoid unnecessary DTC detection.
NOTE:


Even if the voltage is recovered after the engine is started, the airbag warning light stays ON during
the drive cycle.
When the battery voltage becomes stable after the engine is started, the airbag system will operate
normally.
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.
© 2020 Mazda North American Operations, U.S.A.
06/11/2020 2:10 PM tlawrenc
Bulletin No.: 08-001/20
Last Issued: 06/10/2020
Customers having this concern should have their vehicle repaired using the following repair procedure.
REPAIR PROCEDURE
1. Verify customer concern.
2. Replace the passenger seat cushion with a modified one, which includes the modified OCS, by referring
to the instructions on MGSS.


CX-3 (FRONT SEAT CUSHION TRIM REMOVAL/INSTALLATION)
CX-5 (FRONT SEAT CUSHION TRIM REMOVAL/INSTALLATION)
3. Verify repair.
PARTS INFORMATION
Use the VIN to lookup the correct part number in the GEPC.
Part Number
Description
Qty.
Notes
DD5C-88-11XD Heater Pad (R), Cushion 1
CX-3 Leather / Leatherette
DD5D-88-11XD
Pad (R), Cushion
1
CX-3 w/o seat heater
DD5E-88-11XD Heater Pad (R), Cushion 1
CX-3 Cloth
KN3V-88-11XA Heater Pad (R), Cushion 1 CX-5 Leather with seat ventilation
KD1A-88-11XD Heater Pad (R), Cushion 1 CX-5 Leather w/o seat ventilation
KB7W-88-11XC Heater Pad (R), Cushion 1
CX-5 Cloth with seat heater
KB8R-88-11XC Heater Pad (R), Cushion 1
CX-5 Cloth with seat heater
KB8D-88-11XD Heater Pad (R), Cushion 1
CX-5 Leatherette
NOTE: Modified part KB8E-88-11XC (CX-5 Leather) is not available at this time.
WARRANTY INFORMATION
NOTE:



This warranty information applies only to verified customer complaints on vehicles eligible for
warranty repair.
This repair will be covered under Mazda’s New Vehicle Limited Warranty term.
Additional diagnostic time cannot be claimed for this repair.
Warranty Type
A
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.
© 2020 Mazda North American Operations, U.S.A.
06/11/2020 2:10 PM tlawrenc
Bulletin No.: 08-001/20
Last Issued: 06/10/2020
Symptom Code
6X
Damage Code
9W
Part Number Main Cause
Quantity
Operation Number / Labor
Hours:
****-88-11X*
1
XXS2GXRX / 0.8 Hrs.
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.
© 2020 Mazda North American Operations, U.S.A.
06/11/2020 2:10 PM tlawrenc