Service hybrid system message with no CEL

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Old Jul 23, 2018 | 08:55 PM
  #11  
pandes's Avatar
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Default Re: Service hybrid system message with no CEL

That's interesting!
 
Old Jul 30, 2018 | 08:12 AM
  #12  
RyeThomas's Avatar
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Default Re: Service hybrid system message with no CEL

Ok so dealer called, it’s one of the control modules. It needs the new module then has to be programmed to the truck, I should have it back tomorrow evening or Wednesday at the latest. I will post up exactly what the service ticket says, really glad it’s not the battery.
 
Old Jul 30, 2018 | 09:35 AM
  #13  
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Default Re: Service hybrid system message with no CEL

Be prepared for a misdiagnoses. Attempt to secure a commitment from the dealership that you don't have to pay for work that you don't need or for their inability to diagnose issues with their product.

Good luck!
 
Old Jul 30, 2018 | 11:05 AM
  #14  
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Default Re: Service hybrid system message with no CEL

Ok, is this from personal experience? Is this common with these vehicles? I hope this isn’t the case. Guess we will see. Thanks for the vote of confidence, lol.
 
Old Jul 30, 2018 | 11:06 AM
  #15  
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Default Re: Service hybrid system message with no CEL

Not certain of the larger picture, but there are multiple instances on this site alone.
 
Old Jul 30, 2018 | 11:10 AM
  #16  
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Default Re: Service hybrid system message with no CEL

Ok well I have to start somewhere. I have to give the dealer a chance. If it goes down that road they can keep the darn thing, if it’s that complicated (which it shouldn’t be) I’ll jump ship. I’m not willing to spend a bunch of money to guess on anything.
 
Old Jul 31, 2018 | 03:29 PM
  #17  
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Default Re: Service hybrid system message with no CEL

Ok so the invoice says internal failure in serial data gateway module causing b1000-39 DTC.
Serial data gateway module replaced.

I cant seem to find a b1000-39 DTC. Drove the car this afternoon, it’s holding in auto stop mode longer again and accelerates a bit longer in electric mode. Not a large sample size, but fingers crossed.
 
Old Jul 31, 2018 | 07:21 PM
  #18  
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Default Re: Service hybrid system message with no CEL

So far so good it seems.
 
Old Nov 1, 2018 | 05:09 PM
  #19  
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From: Denver CO
Default Re: Service hybrid system message with no CEL

Can you advise of the cost of the replacement of this SDGM Module? I believe this may be the problem with my 2010 Caddy Escalade Hybrid.

Thanks!
 
Old Nov 2, 2018 | 01:38 AM
  #20  
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Default Re: Service hybrid system message with no CEL

I had some other stuff done while it was in, IIRC $500-700 range.
 


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