LB7: Lights and locks

aashton1206

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Sep 3, 2015
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How about a new one boys, let's talk lights and locks. Started a few months ago and had gotten progressively worse. The I will drive and run no problems like always, but then I get to where I am going and I get out then go to lock it and nothing. No locks as well as no registering if a door opens or closes until I open the pass side front and then the remote come back. I close it and it goes right back out. I can only turn int lights off by hitting dome over ride. Seems fine for a couple days after I tune it then goes right back to it. I have tried all my tunes and they all do it. However it was doing it before I started tuning the truck considerably. So do we think it's a currupt os? Maybe the bcm is finally going. Has anyone experienced it?

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TheBac

Why do I keep doing this?
Staff member
Apr 19, 2008
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Mid Michigan
Moved to Electronics section.

The DDM controls a lot of those functions. Probably failing module or a communication issue between modules. You need to use a Tech2 to figure it out. My son's car was doing something similar and it turned out it was a corroded splice in the Class2 data bus within the harness.



Is that random huge picture really necessary in the thread?
 

aashton1206

Member
Sep 3, 2015
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Just for attention bud. I went through a lot of exposed points last night and couldn't find anything. Due to the fact it degraded over time after programming I'm thinking it is probably a failing module.


2004 Silverado Cali lb7, Airdog ll 165, fresh sticks at 325k, custom tuning on v2 by Rick Fletes, 33x12.5 nittos at on 20 inch American steal wheels, modded factory air box, Profab Intake Horn, Batmo Wheel, Turbo port and polish, Full EGR Removed w/ fed belt, 3.5 inch MBRP Downpipe, Full five inch MBRP Exhaust, 10mm lbz cp3 pump, Dual Yellow Top Optimas, High Output Alternator, Cognito Pittman and idler w/ support kit, Cognito Contol arms, Drilled and Slotted Rotors on all four Corners, Custom Y Bridge.
 

aashton1206

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Sep 3, 2015
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What is the DDM


2004 Silverado Cali lb7, Airdog ll 165, fresh sticks at 325k, custom tuning on v2 by Rick Fletes, 33x12.5 nittos at on 20 inch American steal wheels, modded factory air box, Profab Intake Horn, Batmo Wheel, Turbo port and polish, Full EGR Removed w/ fed belt, 3.5 inch MBRP Downpipe, Full five inch MBRP Exhaust, 10mm lbz cp3 pump, Dual Yellow Top Optimas, High Output Alternator, Cognito Pittman and idler w/ support kit, Cognito Contol arms, Drilled and Slotted Rotors on all four Corners, Custom Y Bridge.
 

aashton1206

Member
Sep 3, 2015
172
0
16
Just read about a broken wire being a common issue I will check tonight


2004 Silverado Cali lb7, Airdog ll 165, fresh sticks at 325k, custom tuning on v2 by Rick Fletes, 33x12.5 nittos at on 20 inch American steal wheels, modded factory air box, Profab Intake Horn, Batmo Wheel, Turbo port and polish, Full EGR Removed w/ fed belt, 3.5 inch MBRP Downpipe, Full five inch MBRP Exhaust, 10mm lbz cp3 pump, Dual Yellow Top Optimas, High Output Alternator, Cognito Pittman and idler w/ support kit, Cognito Contol arms, Drilled and Slotted Rotors on all four Corners, Custom Y Bridge.