Duramax Diesels Forum Truck of the Week
  #1  
Old 03-26-2008, 06:30 PM
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McRat McRat is offline
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Default GM Trouble Codes - Master List:

Free From GM - OBDII Trouble Codes and troubleshooting checklist

This will be updated as necessary by GM and doesn't require $$$ subscription fees.
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2005 GMC 2500HD LLY "Casper"- LLY O/S 8758. 10.59 @ 129. EFILive "2CP3" Tuning, Mike L Suncoast Trans. PPE Dual CP3's, GT4202R.
2004.5 GMC 3500 SRW LLY "Big Blue" - LLY O/S 1668. 13.12@103. Powered by PPE/VA with Mike L Suncoast Trans.
2006 GMC 2500HD CC/SB LBZ "Wendy"- LBZ O/S 6128. 12.50 @ 107.x. EFILive tuning, Mike L trans.
Pat and Kat McSwain
"Casper" - Record Holder, Bonneville & El Mirage. Best Clocked Speed 197mph, Bonneville '09.
"World's Fastest Production Diesel Pickup - 174.586mph"


Last edited by McRat; 03-26-2008 at 06:33 PM.
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  #2  
Old 03-26-2008, 06:37 PM
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mvnvltn mvnvltn is offline
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Nice
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2002 C/C Dually LB7
It has some (broken) stuff




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  #3  
Old 10-25-2010, 09:00 PM
wberg wberg is offline
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Great Good to have
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  #4  
Old 10-25-2010, 10:14 PM
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DAVe3283 DAVe3283 is online now
Why not?



 
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Cool! Thanks!
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  #5  
Old 10-26-2010, 05:06 PM
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smarquis smarquis is offline
Triple Turbo LBZ
 
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Is it accurate? For 2006, they don't list the LBZ.
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2006 Chevy 2500 HD CCSB EPR Triple Turbos with a Cheetah 68, Turbosock, Air Dog II, Snow Performance MPG Max, EFI Live Tuning by Idaho Rob/Trent Nell, magnaflow converter, 4" Exhaust, EPR Stage Transmission with a SunCoast converter, and trans cooler from SunCoast/Mike L, Brake-man larger brakes up front with Brake man rotors/pads in the rear; 4" Cognito Lift with UCAs, heavy duty tie rods, front anti-sway bar, Pitman/Idler Arm Support Kit and steering braces, Zulastic shackles, Atlas Rear springs, air bags, and 285/65R20 BFG A/Ts on 20x9 BMFs.
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  #6  
Old 10-26-2010, 05:09 PM
McRat's Avatar
McRat McRat is offline
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Join Date: Aug 2006
Location: Norco CA
Truck: 05 GMC EC/SB 2500HD
Engine: Duramax LLY
Transmission: Automatic
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GM had a brain-furt in 2006. The LBZ was originally ID'd as LLY, badged at 310HP, made about 335 in real life, and has ZERO parts interchangeability with the LLY (maybe the fuel filter? Maybe not...)
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2005 GMC 2500HD LLY "Casper"- LLY O/S 8758. 10.59 @ 129. EFILive "2CP3" Tuning, Mike L Suncoast Trans. PPE Dual CP3's, GT4202R.
2004.5 GMC 3500 SRW LLY "Big Blue" - LLY O/S 1668. 13.12@103. Powered by PPE/VA with Mike L Suncoast Trans.
2006 GMC 2500HD CC/SB LBZ "Wendy"- LBZ O/S 6128. 12.50 @ 107.x. EFILive tuning, Mike L trans.
Pat and Kat McSwain
"Casper" - Record Holder, Bonneville & El Mirage. Best Clocked Speed 197mph, Bonneville '09.
"World's Fastest Production Diesel Pickup - 174.586mph"

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  #7  
Old 10-27-2010, 09:03 AM
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smarquis smarquis is offline
Triple Turbo LBZ
 
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I pick my trucks well, "the year of the brain fart!" LOL.

So I take it that this list is no good to me anyway?
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2006 Chevy 2500 HD CCSB EPR Triple Turbos with a Cheetah 68, Turbosock, Air Dog II, Snow Performance MPG Max, EFI Live Tuning by Idaho Rob/Trent Nell, magnaflow converter, 4" Exhaust, EPR Stage Transmission with a SunCoast converter, and trans cooler from SunCoast/Mike L, Brake-man larger brakes up front with Brake man rotors/pads in the rear; 4" Cognito Lift with UCAs, heavy duty tie rods, front anti-sway bar, Pitman/Idler Arm Support Kit and steering braces, Zulastic shackles, Atlas Rear springs, air bags, and 285/65R20 BFG A/Ts on 20x9 BMFs.
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  #8  
Old 10-27-2010, 09:59 AM
McRat's Avatar
McRat McRat is offline
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Join Date: Aug 2006
Location: Norco CA
Truck: 05 GMC EC/SB 2500HD
Engine: Duramax LLY
Transmission: Automatic
Posts: 13,233

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2006 LLY should have mostly identical codes/procedures to 2006/2007 LBZ since all the sensors and computers are the same.

It is most likely an oversight on whoever manages that website that LBZ is not included with LLY (should be LLY/LBZ).
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2005 GMC 2500HD LLY "Casper"- LLY O/S 8758. 10.59 @ 129. EFILive "2CP3" Tuning, Mike L Suncoast Trans. PPE Dual CP3's, GT4202R.
2004.5 GMC 3500 SRW LLY "Big Blue" - LLY O/S 1668. 13.12@103. Powered by PPE/VA with Mike L Suncoast Trans.
2006 GMC 2500HD CC/SB LBZ "Wendy"- LBZ O/S 6128. 12.50 @ 107.x. EFILive tuning, Mike L trans.
Pat and Kat McSwain
"Casper" - Record Holder, Bonneville & El Mirage. Best Clocked Speed 197mph, Bonneville '09.
"World's Fastest Production Diesel Pickup - 174.586mph"

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  #9  
Old 11-15-2010, 07:41 PM
turfcat1 turfcat1 is offline
I AM Commercial Grade
 
Join Date: Oct 2010
Location: Elgin, Texas
Truck: 02 Chevy 3500 CC 4X4
Engine: LB7
Transmission: Automatic
Posts: 1

Default Need help with trouble codes

Codes P0380 and P0540

Well, I just completed an injector replacement on my '02, and after a few tense moments of cranking, it roared to life. I've since driven it about 150 miles, and it's doing great. However, it threw two codes out (checked these at Autozone) related to the intake air heater. Out of the whole operation, the one thing I was uncertain about was reconnecting the glow plug controller. I couldn't remember with absolute certainty which wire went where. Anyway, I understand that, once the issues are addressed, the "check engine" light will go out. I did do a cursory check of the connections down at the glow plugs themselves, and found the left side front had a loose connection. Took care of that, but the light comes on and stays on.

Other than these two codes popping up, everything else is perfect - truck runs awesome. I'm still not sure about the connections up at the controller. I've looked throughout this forum board, and others, but I can't locate a diagram or photo that shows how the wires are connected. Can anyone give me specifics as to which wire goes where. A pic, or even some sort of drawing would really help a bunch.

Thanks!
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  #10  
Old 02-15-2012, 05:53 AM
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weistie weistie is offline
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Join Date: Jan 2012
Location: Joplin, Mo
Truck: cc/lb
Engine: lly
Transmission: Automatic
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great resource printed what i needed thanks a million !
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05 silverado 2500hd 4x4 crewcab long bed alli 1000 stock replacement k &n filter , oversized 16 's and its sad i know but thats the only mods, i use truck to pull a trailer full of bread so i make money with her trying not to spend money on her
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  #11  
Old 02-15-2012, 06:26 AM
jkaps jkaps is offline
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great find, thanks
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06 GMC cclb drw LBZ, transgo jr, pump rub mod, diamond eye downpipe, PPE deep trans pan, line-x, B&W turnover ball & 5th wheel adapter, pcv reroute, BD exhaust manifold, MBRP 5" SS downpipe back exhaust,EFI live by Idaho Rob w/dsp5 switch,EGR blocked,Air Dog II 165, PPE race valve,EDGE CTS insight monitor,MAG-HYTEC rear diff cover,bilstien 5100's,AFE stage 2 intake

02 Dodge qbsb 2500 6 spd cummins Smarty,egt/boost/fuelpressure gauges, fass pump, volant airbox, cipa mirrorrs,line-x,bilstien 5100's mag-hytech rear diff cover,adjustable boost elbow

84 Chevy K30 srw restored inside and out to much to list, occasional sled puller

82 Chevy K30 drw work truck/beater
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  #12  
Old 03-11-2013, 02:25 AM
Donny Boy Jr Donny Boy Jr is offline
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Location: Cornwall Ontario
Truck: 2005 3500 Dually
Engine: LLY
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Thumbs up Codes

Thanks this is great!!
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  #13  
Old 04-06-2013, 01:23 PM
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IGS27639 IGS27639 is offline
05 duramax
 
Join Date: May 2012
Location: Indiana
Truck: 2500HD CC,SB
Engine: LLY
Transmission: Automatic
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Thanks
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2005 Crew Cab / BDS 6" Lift / Edge Juice W/CTS / 5" MBRP Exhaust / 35" Goodyear Duratrac Tires
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  #14  
Old 10-08-2013, 12:37 PM
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Summitsmoke403 Summitsmoke403 is offline
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Join Date: Jul 2013
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Truck: CC/SB
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Quote:
Originally Posted by turfcat1 View Post
Codes P0380 and P0540

Well, I just completed an injector replacement on my '02, and after a few tense moments of cranking, it roared to life. I've since driven it about 150 miles, and it's doing great. However, it threw two codes out (checked these at Autozone) related to the intake air heater. Out of the whole operation, the one thing I was uncertain about was reconnecting the glow plug controller. I couldn't remember with absolute certainty which wire went where. Anyway, I understand that, once the issues are addressed, the "check engine" light will go out. I did do a cursory check of the connections down at the glow plugs themselves, and found the left side front had a loose connection. Took care of that, but the light comes on and stays on.

Other than these two codes popping up, everything else is perfect - truck runs awesome. I'm still not sure about the connections up at the controller. I've looked throughout this forum board, and others, but I can't locate a diagram or photo that shows how the wires are connected. Can anyone give me specifics as to which wire goes where. A pic, or even some sort of drawing would really help a bunch.

Thanks!
Mines doin the same thing did you ever figure it out?


04 Lb7 cc/SB new guy to the forum
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04 lb7 CC/SB banks six gun tuner, big head waste gate actuator, air raid intake, air dog 100, high flow driver side exhaust manifold, 3" profab downpipe, 5" MBRP exhaust
piece by piece!
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  #15  
Old 10-27-2013, 04:25 PM
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DirtyMax32 DirtyMax32 is offline
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Quote:
Originally Posted by Summitsmoke403 View Post
Mines doin the same thing did you ever figure it out?


04 Lb7 cc/SB new guy to the forum
Same here. My 01 LB7 threw P0380 and the intake heater code and I replaced both glow plug relays but that didn't fix the engine light. So I unplugged the power going to the glowplugs since I live in Texas.

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