EPA EDIR# 4153 

Received: January 7, 2011
EPA EDIR# 4153 

Received: January 7, 2011
EPA EDIR# 4153 

Received: January 7, 2011
Page 1 of 2

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.

© 2009 Mazda Motor of America, Inc.

 Subject:

MIL ON WITH DTC P2404

Bulletin No: 01-043/09

Last Issued: 10/05/2009 

Service Bulletin Mazda North American Operations

Irvine, CA 92618-2922

2004-2007 MAZDA3 - MIL ON WITH DTC P2404

APPLICABLE MODEL(S)/VINS

2004-2007 Mazda3 vehicles (including Mazdaspeed3) with VINS lower than JM1BK******645876 (produced 

before October 2, 2006)

DESCRIPTION

Some vehicles may experience the MIL on with DTC P2404 (EVAP system leak detection pump sensor circuit 

malfunction), but diagnostics show no problem can be found. Improper sealing of the leak detection pump 

(LDP) change over valve causes low output electrical current. As a result, the PCM determines a malfunction of 

the LDP sensor.

Customers having this concern should have their vehicle repaired using the following repair procedure.

REPAIR PROCEDURE

1. Verify customer concern.

2. Check for the following and repair if necessary:

- Clogged EVAP system air filter

- Bent or pinched EVAP hoses

- No continuity in wiring between PCM and LDP.

3. Remove the LPD and perform air flow inspection and resistance inspection. Refer to MS3 online instructions 

or Workshop manual section 01-16. If any problem is found, replace the LDP.

4. Verify repair.

PART(S) INFORMATION

Part Number Description Qty.

LF66-18-581A Leak Detection Pump 1

EPA EDIR# 4153 

Received: January 7, 2011
 Bulletin No: 01-043/09

© 2009 Mazda Motor of America, Inc.

Last Issued: 10/05/2009 

Page 2 of 2

WARRANTY INFORMATION

NOTE:

• This warranty information applies only to verified customer complaints on vehicles eligible for warranty repair.

• Non-California Emissions Warranty States – Repair will be covered under Mazda’s New Vehicle 

Limited Warranty term (36/36).

• California Emissions Warranty States - Repair will be covered under California Emission Defect/

Specific Parts Warranty term (84/70) for the following vehicles:

- 2004 and 2005 Mazda3 with 2.3 L

- 2007 Mazdaspeed3

• Additional diagnostic time cannot be claimed for this repair.

Warranty Type A 

Symptom Code 6X

Damage Code 9E

Part Number Main Cause LF66-18-581

Quantity 0 or 1

Operation Number / Labor Hours: XXD3FXRX / 1.6 Hrs. (for 

diagnosing and/or replacing LDP)

EPA EDIR# 4153 

Received: January 7, 2011