5WY ECM Identification

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Siemens 5WY ECMs were used on both Delta and Beta motors on a range of vehicles from the mid 1990s to early 2010s. The main difference is the number of harness/socket and pin counts.

Siemens 5WY 5 Connector (2.7L V6)

2003 2.7L V6 Delta 2MBit
2004 2.7L V6 Delta 4MBit

The Siemens 5WY 5 connector ECM is found on an array of vehicles ranging between 1999 and 2012 equipped on the 2.5L and 2.7L Delta motors including the Sonata, Santa Fe, Tucson, Tiburon and Sportage. There are two types of EEPROMs used across this range known as 2MBit and 4MBit (or 256Kbytes and 512Kbytes). There are 7 major variants of this ECM. These variants can be identified by the 5WY designation under the SIEMENS logo here:

5WY 5 Connector Identification Matrix
EEPROM Family Variants Years Calibration Version

Cross Compatibility

Engine

Type

O2

Sensor

2MBit

AM29F200BB

M29F200BB

5WY12 5WY1215 1999-2001 ca650055 Delta

G6BV/G6BW

2.5L

5volt NB
5WY15 5WY1502

5WY1503

5WY1515

5WY1541

2002-2003 ca652040

ca652048

ca652051

Delta

G6BA

2.7L

4MBit

AM29F400BB

M29F400BB

5WY17 5WY1706

5WY1708

5WY1710

5WY1711

5WY1745

5WY1753

2003-2004 ca654011

ca654012

ca654014

ca654015

ca654016

ca654019

1volt NB
5WY18v1 5WY1805

5WY1842

2005 ca654020

ca654021

5WY18v2 5WY1857 2006 ca654024

ca654025

5WY1Fv1 5WY1F02

5WY1F03

2007 ca655022
5WY1Fv2 5WY1F28

5WY1F29

5WY1F65

5WY1F66

2008-2009 ca655027

ca655029

The vehicle chassis code, year, region and engine type can be found on the right of the label:

  • N - North American (E = European)
  • 7 - Delta 2.7L (5 = Delta 2.5L)
  • 2 - 2002 year (3 = 2003, 4 = 2004, 5 = 2005, etc. etc.)
  • G - GK model

There is a date code just above the barcode which identifies the date which it was flashed. The dates are written as "DAY.MONTH.YEAR" with the following examples:

  • 30.10.02 - October 30th 2002
  • 18.12.03 - December 18th 2003

A pinout can be found here: Siemens 5WY 5 Connector Pinout

Siemens 5WY 2 Connector (2.0L L4)

2003 2.0L L4 Beta 2MBit Non-CVVT
2004 2.0L L4 Beta 4MBit CVVT
2008 2.0L L4 Beta 4MBit CVVT

The Siemens 5WY 2 connector ECM is found on an array of vehicles up to approximately 2012 equipped with the 2.0L Beta motors. There are two types of EEPROMs used across this range known as 2MBit and 4MBit (or 256Kbytes and 512Kbytes). There are 5 major variants of this ECM. These variants can be identified by the 5WY designation under the SIEMENS logo here:

  • 5WY14 - 2MBit family w/o CVVT 2002-2003
  • 5WY16 - 4MBit family w/ CVVT 2004-2006 MT
  • 5WY41 - 4MBit family w/ CVVT 2004-2006 AT
  • 5WY19 - 4MBit family w/ CVVT 2007-2009 MT
  • 5WY1A - 4MBit family w/ CVVT 2007-2009 MT
  • 5WY44 - 4MBit family w/ CVVT 2007-2009 AT

The vehicle chassis code, year, region and engine type can be found on the right of the label:

  • N - Region. N is North American
  • C - BETA 2.0 CVVT (0 is BETA 2.0 non-CVVT)
  • 4 - 2004 year (3 = 2003, 4 = 2004, 5 = 2005, etc. etc.)
  • G - GK model

There is a date code just above the barcode which identifies the date which it was flashed. The dates are written as "DAY.MONTH.YEAR" with the following examples:

  • 07.05.03 - May 7th 2003
  • 21.08.03 - August 21st 2003
  • 29.08.07 - August 29th 2007

A pinout can be found here: Siemens 5WY 2 Connector Pinout