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05 GMC C5500 Duramax Diesel Wiring


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jrilla 
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Posted: September 27, 2009 at 8:24 PM / IP Logged  
Anyone have the wiring info for this vehicle? If not, do you have any ideas on where to find the glow plug wire? I can probably find the rest of the wires by testing. These don't have an anti-theft system do they? I have one coming into the shop this weekend and the owner couldn't tell me much about it.
tommy... 
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Posted: September 28, 2009 at 9:07 AM / IP Logged  
BatteryRED(+)IGNITION SWITCH HARNESS
05 GMC C5500 Duramax Diesel Wiring -- posted image.Ignition 1PINK(+)IGNITION SWITCH HARNESS
05 GMC C5500 Duramax Diesel Wiring -- posted image.Ignition 2WHITE(+)IGNITION SWITCH HARNESS
05 GMC C5500 Duramax Diesel Wiring -- posted image.Ignition 3BROWN(+)IGNITION SWITCH HARNESS
05 GMC C5500 Duramax Diesel Wiring -- posted image.Accessory 1ORANGE(+)IGNITION SWITCH HARNESS
05 GMC C5500 Duramax Diesel Wiring -- posted image.Starter 1YELLOW(+)IGNITION SWITCH HARNESS
05 GMC C5500 Duramax Diesel Wiring -- posted image.Anti-Theft TypeGM PASSLOCK II® ANTI-THEFT SYSTEM
05 GMC C5500 Duramax Diesel Wiring -- posted image.Anti-Theft DescriptTHE BCM MODULE MUST SEE A SPECIFIC RESISTANCE VALUE BEFORE THE VEHICLE WILL START PROPERLY
05 GMC C5500 Duramax Diesel Wiring -- posted image.Key SenseTAN(-)IGNITION SWITCH HARNESS
05 GMC C5500 Duramax Diesel Wiring -- posted image.TachometerLIGHT BLUE(AC)AT ECM MODULE NEAR DRIVERS SIDE OF FIREWALL...PIN #76 - CLEAR PLUG05 GMC C5500 Duramax Diesel Wiring -- posted image.
05 GMC C5500 Duramax Diesel Wiring -- posted image.Wait To StartDARK BLUE(-)AT ECM MODULE NEAR DRIVERS SIDE OF FIREWALL...PIN #36 - CLEAR PLUG05 GMC C5500 Duramax Diesel Wiring -- posted image.
05 GMC C5500 Duramax Diesel Wiring -- posted image.Glow PlugYELLOW(-)AT ECM MODULE NEAR DRIVERS SIDE OF FIREWALL...PIN #6 - CLEAR PLUG05 GMC C5500 Duramax Diesel Wiring -- posted image.
05 GMC C5500 Duramax Diesel Wiring -- posted image.Crankshaft SensorDARK BLUE/WHITE(-)AT ECM MODULE NEAR DRIVERS SIDE OF FIREWALL...PIN #12 - BLUE PLUG05 GMC C5500 Duramax Diesel Wiring -- posted image.
05 GMC C5500 Duramax Diesel Wiring -- posted image.Camshaft SensorBROWN / WHITE(-)AT ECM MODULE NEAR DRIVERS SIDE OF FIREWALL.PIN #73 - BLUE PLUG..05 GMC C5500 Duramax Diesel Wiring -- posted image.
05 GMC C5500 Duramax Diesel Wiring -- posted image.Speed SenseDARK GREEN / WHITE(AC)AT ECM MODULE NEAR DRIVERS SIDE OF FIREWALL...PIN #50 - CLEAR PLUG05 GMC C5500 Duramax Diesel Wiring -- posted image.
05 GMC C5500 Duramax Diesel Wiring -- posted image.Parking LightsBROWN(+)AT VEHICLE LIGHT SWITCH
05 GMC C5500 Duramax Diesel Wiring -- posted image.Brake LightsWHITE(+)AT SWITCH ABOVE PEDAL
05 GMC C5500 Duramax Diesel Wiring -- posted image.Reverse LightsLIGHT GREEN(+)AT DRIVERS DOOR SILL HARNESS OR TRAILER CONNECTOR
05 GMC C5500 Duramax Diesel Wiring -- posted image.HornBLACK(-)IGNITION SWITCH HARNESS

Power UnlockWHITE(+)AT DOORLOCK RELAY MODULE ON PASSENGER SIDE OF TRANSMISSION HUMP NEAR FIREWALL...PRESS THE LOCK BUTTON ON EITHER DOOR TO LOCATE THE CLICK MADE BY THE RELAY MODULE TO AID IN LOCATION05 GMC C5500 Duramax Diesel Wiring -- posted image.
05 GMC C5500 Duramax Diesel Wiring -- posted image.PowerLockLIGHT BLUE(+)AT DOORLOCK RELAY MODULE ON PASSENGER SIDE OF TRANSMISSION HUMP NEAR FIREWALL

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Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!
tommy... 
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Posted: September 28, 2009 at 9:08 AM / IP Logged  

Although it does randomly list security...When it is not present...This is what the notes say...

Anti-Theft TypeGM PASSLOCK II® ANTI-THEFT SYSTEM
05 GMC C5500 Duramax Diesel Wiring -- posted image.Anti-Theft DescriptTHE BCM MODULE MUST SEE A SPECIFIC RESISTANCE VALUE BEFORE THE VEHICLE WILL START PROPERLY

M.E.C.P & First-Class
Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!
jrilla 
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Posted: September 28, 2009 at 11:37 AM / IP Logged  
Thanks a lot, I couldn't find that info anywhere. Do you know if the Brown Ign3 is like most GM's where it is just for the radio and other accessories?
jrilla 
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Posted: October 04, 2009 at 4:16 PM / IP Logged  
I could not find the ECM mentioned above. There was nothing on the drivers side of the firewall either under the dash or under the hood. There was what I would assume was the ECM above the passenger wheel under the hood, but there was no clear plug. So needless to say, i couldn't find the tach wire or the wait to start wire. i did not see a wait to start light on the dash either. I found a lt. Blue wire that I am pretty sure came from the cluster but it only registered about 50mv but it did increase when the gas was pressed. It did not work as a tach wire. Any ideas on this anyone? I couldn't find any more information on this vehicle anywhere.
ckeeler 
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Posted: October 05, 2009 at 5:34 PM / IP Logged  
does this truck have a Duramax diesel, or is it a little CAT?
jrilla 
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Posted: October 06, 2009 at 11:44 AM / IP Logged  
Duramax Diesel. I am not sure of the engine size, but it is a fairly base model with no power windows or door locks. I would guess it is a 6.6L but that is just a guess. Thanks for any help you can give.

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