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No starting issues w errors

robert24b

By robert24b
in Troubleshooting & Recalls

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robert24b Enthusiast

robert24b

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Posted (edited)

Pleas help everyone!! 

I went to leave town and my truck wouldn't start, no clicking, nothing. The only sign of life was the information center throwing every error and service message at me. -----Service stabiltrack

--Service 4wd

--Service trailer brake system

--Action required: steering assist is reduced drive with care.

--low fuel,

--lower and raise the driver side window.

The ONLY I did to the truck prior to the issue was removing the door panels to dynamat the doors. I can only assume that I created an issue by not disconnecting the batt first before unplugging the door panel harness. 

I tried to jump start, disconnect/reconnect body ground, completely disconnect the battery for about an hour, even took off the door panels again to look for anything obvious. 

Battery reads 12.8vdc

Kinda seems like a security issue but I have no idea. 

Thoughts?

 

2015 Sierra

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robert24b
robert24b

This explains it better than I can   https://youtu.be/227dndw46JY

richard wysong
richard wysong

erikwink6 has a similar post going titled "no start after dash repair" that has a detailed explanation of the starter system

ksiesel
ksiesel

I had something similar with my truck while it was under warranty.  It was the datalink wires shorting together up near the rear tire.    The key switch is wired to the BCM and it has to tel

robert24b Enthusiast

robert24b

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46 minutes ago, rlcole321 said:

Sounds like a batt issue, possibly ground issue, unfortunately, GM truck have ground issues.

Unfortunately, I don't think a new battery would help here. 

richard wysong Senior Enthusiast

richard wysong

Posted
Posted (edited)

Any codes? could be security or BCM problem,  maybe a bad ground with all the warnings. get a wiring diagram and see if there's a common ground for the items throwing warnings

Edited by richard wysong
BigBadSierra Senior Enthusiast

BigBadSierra

Posted
Posted

If your running the OEM battery that came with the truck in 2015 I would say battery as that is beyond it's intended operational life span.

 

That being said I did have a dead spot in my 2018's starter at only 36000KM

 

 

richard wysong Senior Enthusiast

richard wysong

Posted
Posted

jump the starter relay and see if it cranks over, that will at least eliminate the battery and starter as possibilities

richard wysong Senior Enthusiast

richard wysong

Posted
Posted

erikwink6 has a similar post going titled "no start after dash repair" that has a detailed explanation of the starter system

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robert24b Enthusiast

robert24b

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7 hours ago, BigBadSierra said:

If your running the OEM battery that came with the truck in 2015 I would say battery as that is beyond it's intended operational life span.

 

That being said I did have a dead spot in my 2018's starter at only 36000KM

 

 

New-ish batt. About 24mo old. Even still, I guess it could still be a starter issue.

I find it awfully coincidental that this issue manifested AFTER I removed my door panels.

robert24b Enthusiast

robert24b

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6 hours ago, richard wysong said:

jump the starter relay and see if it cranks over, that will at least eliminate the battery and starter as possibilities

Thanks for the recommendation, I'll look into the procedure for this. Use to be it was as simple as laying a screw driver across the battery and solenoid.  (Older cars)

robert24b Enthusiast

robert24b

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20 hours ago, richard wysong said:

Any codes? could be security or BCM problem,  maybe a bad ground with all the warnings. get a wiring diagram and see if there's a common ground for the items throwing warnings

Not sure about the codes. My foxwell scanner won't connect. Acting pretty strange.

robert24b Enthusiast

robert24b

Posted
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Posted

Update:

When I turn the key, it sounds like the fuel system is priming and there is a click coming from near the driver floorboard under the dash. Does the bcm click when starting?

richard wysong Senior Enthusiast

richard wysong

Posted
Posted

with the warnings and the scanner not connecting it's pointing toward a BCM or buss problem possibly because of a bad ground. There have been numerous posts of similar problems and I don't believe anyone has posted the cause or cure,PLEASE when you figure it out post the fix! Reading past posts I believe there is a ground splice pack up high in the dash on the left(?) side that has the grounds for the buss network. Hopefully someone more knowledgable than me will chime in here

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