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#1 |
Registered User
Join Date: Dec 2004
Location: Highland, IN
Posts: 2,324
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Lost all electronics
2018 Silverado. So battery died tonight. Tried to jump no matter what i did it just ticked. Crazy thing is it fired up drive it a mile and then it was dead. Optima battery. Checked battery 10.5 volts. Took battery out and had tested. Was bad. Got new battery. Runs but lost most electronics. Lost the following
Touch screen Interior lights Passenger windows Rear turn signals Brake lights All ac and heater controls Get a couple needs service pop ups like. Traction control. Tire pressure monitors. Something like safety restraints Disconnect negative battery cable. Says i need to roll driver window down and back up. Does not help Any thoughts?
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Chris _______________________________ 1979 Chevy Stepside SPORT 2018 Chevy Silverado, 39 years apart ![]() My build 2008-2016. http://m.imgur.com/a/bURrE |
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#2 |
Registered User
Join Date: Aug 2015
Location: Las Vegas NV
Posts: 365
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Re: Lost all electronics
Try disconnecting both battery connections for about 5 mins. Then when you reattach, try your best to limit the sparking at the terminals as you tighten the terminals.
The sparking induces voltage spikes and the pcm, bcm, and other modules goes into a safe mode to protect itself. Try that first and make sure the terminals are tight. Then check your fuses. Once the voltage and grounds are clean to the pcm’s liking, it will perform a relearn.
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#3 | |
Registered User
Join Date: Dec 2004
Location: Highland, IN
Posts: 2,324
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Re: Lost all electronics
Quote:
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Chris _______________________________ 1979 Chevy Stepside SPORT 2018 Chevy Silverado, 39 years apart ![]() My build 2008-2016. http://m.imgur.com/a/bURrE |
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#4 |
Registered User
Join Date: Dec 2004
Location: Highland, IN
Posts: 2,324
|
Re: Lost all electronics
The multi pin plug that goes into the bulkhead over the battery had to be repinned. Apparently some of the connectors were loose. crazy thing, I had no issues unplugging, or plugging back in.
$330
__________________
Chris _______________________________ 1979 Chevy Stepside SPORT 2018 Chevy Silverado, 39 years apart ![]() My build 2008-2016. http://m.imgur.com/a/bURrE |
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