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Electrical problems on a 1996 chevrolet silverado

55chevy2nd

By 55chevy2nd
in Ask A GM Technician

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55chevy2nd New Member

55chevy2nd

Posted
Posted

My chevy truck is having a few issues with electrical. First my brake lights stay on,(changed brake light switch). Second, when my heater is switched to high two dash lights would flash my emergency brake light and my abs along with my gear shift indicator light,(replaced the heater/ac switch). Now my truck won't start. Have power but when you turn the key so the motor can crank nothing. My brake lights still stay on, my heater doesn't work, my shift indicator light goes out has anyone had this problem? My name is Jay.

zach1990 Senior Enthusiast

zach1990

Posted
Posted

Get that battery load tested as stated. Most auto parts stores do it free

 

Sent from my SGH-I927 using Tapatalk 2

 

 

55chevy2nd New Member

55chevy2nd

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Battery was tested it was good, changed the ignition switch wiring (thought it might be a short, it's still doing the same thing). Brake lights stay on when you turn the key to the on position, push the brake pedal and they go off. the heater/ac blower motor doesn't even come on. I am totally at a loss.

txab Senior Enthusiast

txab

Posted
Posted

Did you check the integrity of your battery cables and connections? Clean all grounds?

gmtech4 Senior Enthusiast

gmtech4

Posted
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you need a guy that loves electrical diagnoses,like me lol

 

you are now starting to throw parts at the truck .....STOP IT !!!!!

  • 7 months later...
1930modelA New Member

1930modelA

Posted
Posted
55chevy2nd,

Any chance you found the solution to your problem? I have a Chevy Cheyenne of the same year and have almost he exact same problem. The only difference is mine still starts (for now). I've gone through all of the diagnostics on this forum so far and have some up with nothing. Any advice?

1930modelA New Member

1930modelA

Posted
Posted

Thanks for the advise,, i had double checked everything stated in this forum. I still have the same issue. one added piece of information i discovered is that I have 12 volts in my black (ground) wire on both my heater fan motor (when not connected to the motor), and i have 12 volts on my black ground wire for my tail lights when the key is on.

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