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Lots of power but won't start

Steve_G

By Steve_G
in Troubleshooting & Recalls

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Steve_G New Member

Steve_G

Posted
Posted (edited)

So I have a 2016 Sierra. No issues till yesterday when I went to start after running into a store. I got one click then nothing. All the different systems service warnings come on display when I turn key. I recharged battery to make sure it was good. I  jumped the starter relay to make sure it wasn't starter. It turns over great with or without the key on. Having all the systems service warning coming on seems the most confusing. Any ideas would be appreciated. 

Thanks

Edited by Steve_G
Paintor Enthusiast

Paintor

Posted
Posted

Check “PCM B” fuse in fusebox. If you stick in another one and it pops, stop. 

 

Electrical short.

1SLOW1500 Senior Enthusiast

1SLOW1500

Posted
Posted
Check “PCM B” fuse in fusebox. If you stick in another one and it pops, stop. 
 
Electrical short.
I disagree that solves nothing. Keep upgrading fuse or go right to a paperclip. Paperclip is perfect amp fuse. And then the truck will start to smell and release smoke signal to let you know where to find problem. No you may need to replace more parts. But that's just a opportunity to improve on gm engineer stupid work.
Oh and please post a video for use to watch. Thank you. [emoji2957]

Sent from my SM-N960U using Tapatalk

  • Haha 2
Steve_G New Member

Steve_G

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I can't find a fuse listed as being For PCM B. I was thinking maybe the "Engine control module" fuse was the same but It wasn't blown. Or any others I checked.

 

RE1 Enthusiast

RE1

Posted
Posted

Get your battery load-tested. If it can’t generate the needed current, the truck won’t crank despite all lights and interior electrics appearing to work. My truck chews through batteries about every two years and this is exactly how I’ve found out my batteries have gone bad. 

Steve_G New Member

Steve_G

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I put a jumper on the starter relay and starter turns the engine fine so I know the battery is good.

Steve_G New Member

Steve_G

Posted
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Posted

I just had someone put a tester on the truck to see what codes might be showing up and all that comes back is "ERROR". 

 

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