Hummer H2 For those who like a little more gleam to their Hummer, the H2 offers a similar rugged look as the H1, but as a lower cost, and with more added features, making it almost a massive luxury SUV.

Electric issues / find chassis and engine grounds

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Old Dec 15, 2023 | 03:55 PM
  #1  
Dill-Dapp's Avatar
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Default Electric issues / find chassis and engine grounds

hi all,
are there any pictures or videos of all h2 chassis and engine grounds?
I have eletric issues. I became signal lights "brake" "ABS" "TC" "unknown Driver" "4WD Service" ...it comes and goes. only wenn the engine is running. No problem to start.
Battery is new.
So i first try to check all grounds....or you have other hints.

 
Old Jan 11, 2024 | 05:46 PM
  #2  
PGI Conch's Avatar
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Joined: Aug 2021
Posts: 210
From: Port St Lucie, Florida
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Try looking in this file.
 
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System Wiring Diagrams.pdf (2.31 MB, 1229 views)
Old Jan 13, 2024 | 05:08 PM
  #3  
oceanbrave's Avatar
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Posts: 1,635
From: Birmingham (UK)
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This may help


 
Old Jan 13, 2024 | 05:57 PM
  #4  
oceanbrave's Avatar
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Joined: Feb 2015
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From: Birmingham (UK)
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and this...

 
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H2 Grounds + Diagrams V1a.pdf (1.17 MB, 809 views)
Old Mar 19, 2024 | 02:21 PM
  #5  
Gary Wood Jr.'s Avatar
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Joined: Nov 2020
Posts: 2
From: Minnesota
Default Same issue...

Originally Posted by Dill-Dapp
hi all,
are there any pictures or videos of all h2 chassis and engine grounds?
I have eletric issues. I became signal lights "brake" "ABS" "TC" "unknown Driver" "4WD Service" ...it comes and goes. only wenn the engine is running. No problem to start.
Battery is new.
So i first try to check all grounds....or you have other hints.
I am having this exact same issue, any advice if you figured this out would be fantastic!! Thanks!
 
Old Jul 12, 2024 | 08:51 AM
  #6  
mastro4's Avatar
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Joined: Sep 2011
Posts: 1
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I’m wondering if anyone figured this out if the ground was the issue I’m having the same issues
 
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