Hummer Forums by Elcova  
Forums - Home
Source Decals

Source Motors
Custom. Accessories.

H2 Accessories
H3 Accessories
Other Vehicles

H2 Source

H2 Member Photos
H2 Owners Map
H2 Classifieds
H2 Photo Gallery
SUT Photo Gallery
H2 Details

H2 Club

Chapters
Application

H3 Source

H3 Member Photos
H3 Classifieds
H3 Photo Gallery
H3 Owners Map
H3 Details
H3T Concept

H1 Source

H1 Member Photos
H1 Classifieds
H1 Photo Gallery
H1 Details

General Info

Hummer Dealers
Contact
Advertise

Sponsored Ads
















 


Source Motors - custom. accessories.


Go Back   Hummer Forums by Elcova > Hummer H3 Discussion Forums > Technical Discussion and Customizing your H3

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 07-21-2008, 06:31 PM
jersey jersey is offline
Hummer Veteran
 
Join Date: Jul 2008
Location: Jersey Shore
Posts: 62
jersey is on a distinguished road
Default H3 Onstar loose ground sound

Onstar works sometimes and at other times I get a loose ground sound. Onstar diagnosed came up with nothing. I tightened the battery cables which were very loose, and that seemed to work until I drove home and retested it a few hours later and the noise returned. I live on the Jersey shore, far as I know we get a good signal there. My neighbor has Onstar and has no problems with such a sound. Only the Onstar is affected. Everything else works great. Anyone have any ideas what I can check to fix such a problem?
Reply With Quote
  #2  
Old 07-29-2008, 12:11 AM
HUMTECH's Avatar
HUMTECH HUMTECH is offline
Hummer Authority
 
Join Date: Sep 2003
Location: Canada
Posts: 1,251
HUMTECH is an unknown quantity at this point
Default Re: H3 Onstar loose ground sound

Subject:Audio Whine Noise from Radio Speakers When Using OnStar? (Install Noise Suppression Filter)
Models:2007-2008 GM Passenger Cars and Trucks (Including Saturn)
2007-2008 HUMMER H2, H3
2007-2008 Saab 9-7X
with OnStar (RPO UE1)


This bulletin is being revised to update the circuit descriptions in the correction statement. Please discard Corporate Bulletin Number 07-08-46-002A (Section 08 -- Body & Accessories).
<A href="http://gsi.xw.gm.com/si/showDoc.do?docSyskey=2139137&from=sm#ss1-2139137">Condition

Some customers may comment on an audio whine coming from the radio speakers when using the OnStar? system. The amplitude and frequency of the whine will change with an increase or decrease in engine speed.
<A href="http://gsi.xw.gm.com/si/showDoc.do?docSyskey=2139137&from=sm#ss2-2139137">Cause

This condition may be caused by electrical noise on the OnStar? Vehicle Communication Interface Module (VCIM) battery feed wire being passed to the microphone output pins at the radio.
<A href="http://gsi.xw.gm.com/si/showDoc.do?docSyskey=2139137&from=sm#ss3-2139137">Correction

Technicians are to install a noise suppression filter, P/N 1224205, into the OnStar? battery voltage circuit, a few centimeters (inches) from the VCIM. The filter package has three attached wires - a single yellow wire at one end with a yellow wire and a black wire at the other. Install the single yellow wire side into the battery voltage circuit towards the VCIM. Install the remaining single yellow wire into the battery voltage circuit toward the fuse and the black wire to ground.
Important: The noise suppression filter is polarity sensitive. The filter is designed to be most effective when the end with the capacitor ground is connected towards the source of the electrical noise. Install the filter in this polarity first. If the noise level is still not satisfactory, try disconnecting the capacitor ground. In some cases, if the first installation does not correct the noise, try reversing the filter polarity (removing the filter, turning it end for end and then reinstalling it) and grounding the capacitor lead.
<A href="http://gsi.xw.gm.com/si/showDoc.do?docSyskey=2139137&from=sm#ss4-2139137">Parts Information

Part Number
Description
Qty
1224205
Filter, Universal Alternator Whine
1
<A href="http://gsi.xw.gm.com/si/showDoc.do?docSyskey=2139137&from=sm#ss5-2139137">Warranty Information (excluding Saab U.S. Models)

For vehicles repaired under warranty, use:
Labor Operation
Description
Labor Time
N6632
Wiring and/or Connector - Vehicle Entertainment -- Repair or Replace
Use Published Labor Operation Time
<A href="http://gsi.xw.gm.com/si/showDoc.do?docSyskey=2139137&from=sm#ss6-2139137">Warranty Information (Saab U.S. Models)
Reply With Quote
  #3  
Old 07-29-2008, 02:43 AM
jersey jersey is offline
Hummer Veteran
 
Join Date: Jul 2008
Location: Jersey Shore
Posts: 62
jersey is on a distinguished road
Default Re: H3 Onstar loose ground sound

Hey HT,

Thanks for the info! Do you think it matters that my H3 is an '06? It sounds like that is exactly the problem.

Hmmm....wonder if they have on of these that'll fit my wife?
Reply With Quote
  #4  
Old 12-17-2008, 02:58 AM
drewtiss@hotmail drewtiss@hotmail is offline
Elcova Rookie
 
Join Date: Dec 2008
Posts: 9
drewtiss@hotmail is on a distinguished road
Default Re: H3 Onstar loose ground sound

Quote:
Originally Posted by HUMTECH
Subject:Audio Whine Noise from Radio Speakers When Using OnStar® (Install Noise Suppression Filter)
Models:2007-2008 GM Passenger Cars and Trucks (Including Saturn Parts)
2007-2008 HUMMER H2, H3
2007-2008 Saab 9-7X
with OnStar (RPO UE1)


This bulletin is being revised to update the circuit descriptions in the correction statement. Please discard Corporate Bulletin Number 07-08-46-002A (Section 08 -- Body & Accessories).
<A href="http://gsi.xw.gm.com/si/showDoc.do?docSyskey=2139137&from=sm#ss1-2139137">Condition

Some customers may comment on an audio whine coming from the radio speakers when using the OnStar® system. The amplitude and frequency of the whine will change with an increase or decrease in engine speed.
<A href="http://gsi.xw.gm.com/si/showDoc.do?docSyskey=2139137&from=sm#ss2-2139137">Cause

This condition may be caused by electrical noise on the OnStar® Vehicle Communication Interface Module (VCIM) battery feed wire being passed to the microphone output pins at the radio.
<A href="http://gsi.xw.gm.com/si/showDoc.do?docSyskey=2139137&from=sm#ss3-2139137">Correction

Technicians are to install a noise suppression filter, P/N 1224205, into the OnStar® battery voltage circuit, a few centimeters (inches) from the VCIM. The filter package has three attached wires - a single yellow wire at one end with a yellow wire and a black wire at the other. Install the single yellow wire side into the battery voltage circuit towards the VCIM. Install the remaining single yellow wire into the battery voltage circuit toward the fuse and the black wire to ground.
Important: The noise suppression filter is polarity sensitive. The filter is designed to be most effective when the end with the capacitor ground is connected towards the source of the electrical noise. Install the filter in this polarity first. If the noise level is still not satisfactory, try disconnecting the capacitor ground. In some cases, if the first installation does not correct the noise, try reversing the filter polarity (removing the filter, turning it end for end and then reinstalling it) and grounding the capacitor lead.
<A href="http://gsi.xw.gm.com/si/showDoc.do?docSyskey=2139137&from=sm#ss4-2139137">Parts Information

Part Number
Description
Qty
1224205
Filter, Universal Alternator Whine
1
<A href="http://gsi.xw.gm.com/si/showDoc.do?docSyskey=2139137&from=sm#ss5-2139137">Warranty Information (excluding Saab U.S. Models)

For vehicles repaired under warranty, use:
Labor Operation
Description
Labor Time
N6632
Wiring and/or Connector - Vehicle Entertainment -- Repair or Replace
Use Published Labor Operation Time
<A href="http://gsi.xw.gm.com/si/showDoc.do?docSyskey=2139137&from=sm#ss6-2139137">Warranty Information (Saab U.S. Models)

I am a DYI guy, but I am having a problem installing the blue wire to chassis ground and still needs to fix the red wire to the amplifier.

Last edited by drewtiss@hotmail : 12-17-2008 at 04:21 AM.
Reply With Quote
  #5  
Old 12-17-2008, 01:46 PM
wpage's Avatar
wpage wpage is offline
Hummer Guru
 
Join Date: Jul 2006
Location: Stouts Creek
Posts: 4,192
wpage is on a distinguished road
Default Re: H3 Onstar loose ground sound

If you are using a non stock radio/stereo system a condition of noise is common.
__________________
"For God so loved the world he gave his only son that whoever believe in him would not perish but have everlasting life. "
(John 3:16)
2006 H3 Slate Blue,Header,Jacked,CAI,Toyo35's,HHO.
Priors...
Explorer
Commander
71 Vette
You Name it!
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT +1. The time now is 11:15 PM.


Powered by vBulletin Version 3.0.7
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.