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TSB - Engine Continues to Run When You Take the Key Out of the Ignition
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#1
04-02-2004, 12:37 AM
Hummer Guru
Join Date: Nov 2002
Location: CSA
Posts: 2,511
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<TD align=middle width="50%">Document ID# 1478805
2004 HUMMER
H2 </TD>
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<H1>Engine Continues to Run When You Take the Key Out of the Ignition - kw
control brake switch open B1440 run relay start part information electrical
short #PI01881 - (03/18/2004)</H1>Engine Continues to Run When You Take the Key
Out of the Ignition
.</P>
When servicing the vehicle with the VIN you entered, the following diagnosis
might be helpful if the vehicle exhibits the described symptoms. </P><A
name=ss1-1478805><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1478805&psdid=732&evc=sm#ss1-1478805">
<H5>Condition/Concern:</A></H5>
Engine continues to run when you take the key out of the ignition. You may
also find the BCM has code B1440 stored in history. Engine will shut off if you
remove the ignition 1 relay or if you dimmed the dash lights. </P><A
name=ss2-1478805><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1478805&psdid=732&evc=sm#ss2-1478805">
<H5>Recommendation/Instructions:</A></H5>
Feedback or a short in the traction control switch between ckt 230 (dash
light/back lighting/dimming) backfeeding to ckt 639 which would keep the
ignition relay turned on. Replace Brake System/Traction Control switch PN
15163633. </P>
.</P>
Please follow this diagnosis process thoroughly and complete each step. If
the condition exhibited is resolved without completing every step, the remaining
steps do not need to be performed. If these steps do not resolve the condition,
please contact GM TAC for further diagnostic assistance. This diagnostic
approach was developed for the vehicle with the VIN you entered and should not
be automatically be used for other vehicles with similar symptoms.</P><A
name=ss3-1478805><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1478805&psdid=732&evc=sm#ss3-1478805">
<H5>Models:</A></H5>
(04 Hummer H2) </P>
.</P>
</P>
<TABLE width="100%">
<TBODY>
<TR>
<TD align=left width=778><FONT size=1>GM bulletins are intended for use by
professional technicians, NOT a "do-it-yourselfer". They are written
to inform these technicians of conditions that may occur on some vehicles,
or to provide information that could assist in the proper service of a
vehicle. Properly trained technicians have the equipment, tools,
safety instructions, and know-how to do a job properly and safely.
If a condition is described, DO NOT assume that the bulletin applies to
your vehicle, or that your vehicle will have that condition. See
your GM dealer for information on whether your vehicle may benefit from
the information.
</FONT></TD>
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<TD align=middle width=167><FONT size=2>WE SUPPORT VOLUNTARY TECHNICIAN
CERTIFICATION
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<P align=center>© Copyright General Motors Corporation. All Rights
Reserved. </P>
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<TABLE width="100%" align=center>
<TBODY>
<TR>
<TD width="25%" slign="LEFT"></TD>
<TD align=middle width="50%">Document ID# 1478805
2004 HUMMER
H2 </TD>
<TD align=right width="25%"></TD></TR></TBODY></TABLE></FORM></BODY></HTML>
#2
04-02-2004, 12:37 AM
Hummer Guru
Join Date: Nov 2002
Location: CSA
Posts: 2,511
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD><TITLE>Service Information</TITLE>
<META http-equiv=Content-Type content="text/html; charset=windows-1252">
<META content="Microsoft FrontPage 5.0" name=GENERATOR></HEAD>
<BODY bgColor=#ffffff>
<FORM name=topNavForm action=/servlets/CellHandler>
<TABLE width="100%" align=center>
<TBODY>
<TR>
<TD width="25%" slign="LEFT"></TD>
<TD align=middle width="50%">Document ID# 1478805
2004 HUMMER
H2 </TD>
<TD align=right width="25%"></TD></TR></TBODY></TABLE>
<HR>
</FORM>
<H1>Engine Continues to Run When You Take the Key Out of the Ignition - kw
control brake switch open B1440 run relay start part information electrical
short #PI01881 - (03/18/2004)</H1>Engine Continues to Run When You Take the Key
Out of the Ignition
.</P>
When servicing the vehicle with the VIN you entered, the following diagnosis
might be helpful if the vehicle exhibits the described symptoms. </P><A
name=ss1-1478805><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1478805&psdid=732&evc=sm#ss1-1478805">
<H5>Condition/Concern:</A></H5>
Engine continues to run when you take the key out of the ignition. You may
also find the BCM has code B1440 stored in history. Engine will shut off if you
remove the ignition 1 relay or if you dimmed the dash lights. </P><A
name=ss2-1478805><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1478805&psdid=732&evc=sm#ss2-1478805">
<H5>Recommendation/Instructions:</A></H5>
Feedback or a short in the traction control switch between ckt 230 (dash
light/back lighting/dimming) backfeeding to ckt 639 which would keep the
ignition relay turned on. Replace Brake System/Traction Control switch PN
15163633. </P>
.</P>
Please follow this diagnosis process thoroughly and complete each step. If
the condition exhibited is resolved without completing every step, the remaining
steps do not need to be performed. If these steps do not resolve the condition,
please contact GM TAC for further diagnostic assistance. This diagnostic
approach was developed for the vehicle with the VIN you entered and should not
be automatically be used for other vehicles with similar symptoms.</P><A
name=ss3-1478805><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1478805&psdid=732&evc=sm#ss3-1478805">
<H5>Models:</A></H5>
(04 Hummer H2) </P>
.</P>
</P>
<TABLE width="100%">
<TBODY>
<TR>
<TD align=left width=778><FONT size=1>GM bulletins are intended for use by
professional technicians, NOT a "do-it-yourselfer". They are written
to inform these technicians of conditions that may occur on some vehicles,
or to provide information that could assist in the proper service of a
vehicle. Properly trained technicians have the equipment, tools,
safety instructions, and know-how to do a job properly and safely.
If a condition is described, DO NOT assume that the bulletin applies to
your vehicle, or that your vehicle will have that condition. See
your GM dealer for information on whether your vehicle may benefit from
the information.
</FONT></TD>
<TD align=middle width=42></TD>
<TD align=middle width=167><FONT size=2>WE SUPPORT VOLUNTARY TECHNICIAN
CERTIFICATION
</FONT></TD></TR></TBODY></TABLE>
<P align=center>© Copyright General Motors Corporation. All Rights
Reserved. </P>
<FORM name=bottomNavForm>
<HR>
<TABLE width="100%" align=center>
<TBODY>
<TR>
<TD width="25%" slign="LEFT"></TD>
<TD align=middle width="50%">Document ID# 1478805
2004 HUMMER
H2 </TD>
<TD align=right width="25%"></TD></TR></TBODY></TABLE></FORM></BODY></HTML>
#3
04-02-2004, 12:37 AM
Hummer Guru
Join Date: Nov 2002
Location: CSA
Posts: 2,511
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD><TITLE>Service Information</TITLE>
<META http-equiv=Content-Type content="text/html; charset=windows-1252">
<META content="Microsoft FrontPage 5.0" name=GENERATOR></HEAD>
<BODY bgColor=#ffffff>
<FORM name=topNavForm action=/servlets/CellHandler>
<TABLE width="100%" align=center>
<TBODY>
<TR>
<TD width="25%" slign="LEFT"></TD>
<TD align=middle width="50%">Document ID# 1478805
2004 HUMMER
H2 </TD>
<TD align=right width="25%"></TD></TR></TBODY></TABLE>
<HR>
</FORM>
<H1>Engine Continues to Run When You Take the Key Out of the Ignition - kw
control brake switch open B1440 run relay start part information electrical
short #PI01881 - (03/18/2004)</H1>Engine Continues to Run When You Take the Key
Out of the Ignition
.</P>
When servicing the vehicle with the VIN you entered, the following diagnosis
might be helpful if the vehicle exhibits the described symptoms. </P><A
name=ss1-1478805><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1478805&psdid=732&evc= sm#ss1-1478805">
<H5>Condition/Concern:</A></H5>
Engine continues to run when you take the key out of the ignition. You may
also find the BCM has code B1440 stored in history. Engine will shut off if you
remove the ignition 1 relay or if you dimmed the dash lights. </P><A
name=ss2-1478805><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1478805&psdid=732&evc= sm#ss2-1478805">
<H5>Recommendation/Instructions:</A></H5>
Feedback or a short in the traction control switch between ckt 230 (dash
light/back lighting/dimming) backfeeding to ckt 639 which would keep the
ignition relay turned on. Replace Brake System/Traction Control switch PN
15163633. </P>
.</P>
Please follow this diagnosis process thoroughly and complete each step. If
the condition exhibited is resolved without completing every step, the remaining
steps do not need to be performed. If these steps do not resolve the condition,
please contact GM TAC for further diagnostic assistance. This diagnostic
approach was developed for the vehicle with the VIN you entered and should not
be automatically be used for other vehicles with similar symptoms.</P><A
name=ss3-1478805><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1478805&psdid=732&evc= sm#ss3-1478805">
<H5>Models:</A></H5>
(04 Hummer H2) </P>
.</P>
</P>
<TABLE width="100%">
<TBODY>
<TR>
<TD align=left width=778><FONT size=1>GM bulletins are intended for use by
professional technicians, NOT a "do-it-yourselfer". They are written
to inform these technicians of conditions that may occur on some vehicles,
or to provide information that could assist in the proper service of a
vehicle. Properly trained technicians have the equipment, tools,
safety instructions, and know-how to do a job properly and safely.
If a condition is described, DO NOT assume that the bulletin applies to
your vehicle, or that your vehicle will have that condition. See
your GM dealer for information on whether your vehicle may benefit from
the information.
</FONT></TD>
<TD align=middle width=42></TD>
<TD align=middle width=167><FONT size=2>WE SUPPORT VOLUNTARY TECHNICIAN
CERTIFICATION
</FONT></TD></TR></TBODY></TABLE>
<P align=center>© Copyright General Motors Corporation. All Rights
Reserved. </P>
<FORM name=bottomNavForm>
<HR>
<TABLE width="100%" align=center>
<TBODY>
<TR>
<TD width="25%" slign="LEFT"></TD>
<TD align=middle width="50%">Document ID# 1478805
2004 HUMMER
H2 </TD>
<TD align=right width="25%"></TD></TR></TBODY></TABLE></FORM></BODY></HTML>
#4
04-02-2004, 10:58 AM
Hummer Guru
Join Date: Nov 2002
Location: Cognito
Posts: 2,155
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by Klaus:
...Engine will shut off if you
remove the ignition 1 relay or if you dimmed the dash lights... <HR></BLOCKQUOTE>
Dim the dash lights??
#6
04-02-2004, 11:43 AM
Hummer Expert
Join Date: Nov 2002
Location: Longwood, Florida USA
Posts: 547
I have heard as they attempted to cheapen the 2004's they redid alot of the original engineering and the entire wiring is a basket case. I would not trade my 2003 for two 2004's. I am hearing nothing but problems!!!!!!!!!!
#7
04-02-2004, 02:04 PM
Hummer Professional
Join Date: Mar 2003
Location: N.CENTRAL OHIO
Posts: 474
"Feedback or a short in the traction control switch between ckt 230 (dash light/back lighting/dimming) backfeeding to ckt 639 which would keep the ignition relay turned on. Replace Brake System/Traction Control switch PN 15163633"
Let me see if i understand (i'm slow).
Replace traction control switch because it keeps running?
Dim the dash lites to shut off the motor?
What next open the cargo hatch to start it 
Luckily we haven't had any trouble w/ our 04.
__________________
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