HELP! 2011 Chevy Silverado 1500 (Multiple Electrical Problems Occurring at Once)

This topic contains 3 replies, has 4 voices, and was last updated by nati222 1 year, 6 months ago.

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July 26, 2020 at 9:09 pm #612022

jacobflrs2424
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Chevy Silverado 1500 LT 2011
120,000 miles

Ive had several issues with my truck in the past 8 months and can’t seem to figure out whats wrong. All of the following Symptoms seem to occur all tother. Symptoms will last for a few hours, couple days, even weeks (very sporadic) Symptoms will sometimes go away on their own.
Check Engine Light On
Service Stabilitrak
ABS Light On
Speedometer and RPM Gauges bouncing all over the place
Late Shifting or HARD Shift
Door Locks and Unlocks while driving.
AC Seems to not be as cold.

Ive had codes checked at different times and these are the codes that have came up, (but not all together) and some have not been repeated.
U0073 Control Module Communication Bus A Off
U7300 Control Module Communication Bus A Off ( Symptom 00)
P069E Fuel Pump Control Module Requested MIL Illumination
P0575 Cruise Control Switch Signal Circuit (Symptom 00)

Ive taken my truck to several Mechanics. Mechanics say they have trouble getting the symptoms to occur so they don’t see the true severity of my issues. Each mechanic has their own “educated guess” of what could be causing my problems. Solutions Ive come across are;
ABS Control Module Replacement
Fuel Pump Control Module Replacement
Wheel Speed Sensors
steering wheel position sensor
ECM Replacement
All of these parts and labor costs are expensive and these could “potentially” fix my issues but are not positive. I just want some help on where I should start, or should I just give up and get rid of the truck all together. I feel like im getting no where and just spending a lot of money. Please anybody if you have similar issues and if you have fixed them please help.
November 26, 2020 at 5:00 am #629011

Hokiefan
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I have a 2017 Silverado with almost the exact same issues. The dealer replaced the main wiring harness coming off the battery but that did nothing but cost me money. Have you been able to find out anything about yours?
- December 15, 2020 at 1:25 am #631651
  
  nati222
  Participant
  
  Hi,
  Sorry to hear about your issues.
  I heard about that as well from a friend of mine who has a 2018 Silverado. His machanic did mange to help him out though.
December 13, 2020 at 9:52 am #631390

mrgm63
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Negative battery cable??
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