05 GMC C5500 Duramax Diesel Wiring

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jrilla

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Joined: November 19, 2002

Location: North Dakota, United States

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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Joined: December 10, 2004

Location: United States

Posted: September 28, 2009 at 9:07 AM / IP Logged

Battery	RED	(+)	IGNITION SWITCH HARNESS
Ignition 1	PINK	(+)	IGNITION SWITCH HARNESS
Ignition 2	WHITE	(+)	IGNITION SWITCH HARNESS
Ignition 3	BROWN	(+)	IGNITION SWITCH HARNESS
Accessory 1	ORANGE	(+)	IGNITION SWITCH HARNESS
Starter 1	YELLOW	(+)	IGNITION SWITCH HARNESS
Anti-Theft Type	GM PASSLOCK II® ANTI-THEFT SYSTEM
Anti-Theft Descript	THE BCM MODULE MUST SEE A SPECIFIC RESISTANCE VALUE BEFORE THE VEHICLE WILL START PROPERLY
Key Sense	TAN	(-)	IGNITION SWITCH HARNESS
Tachometer	LIGHT BLUE	(AC)	AT ECM MODULE NEAR DRIVERS SIDE OF FIREWALL...PIN #76 - CLEAR PLUG
Wait To Start	DARK BLUE	(-)	AT ECM MODULE NEAR DRIVERS SIDE OF FIREWALL...PIN #36 - CLEAR PLUG
Glow Plug	YELLOW	(-)	AT ECM MODULE NEAR DRIVERS SIDE OF FIREWALL...PIN #6 - CLEAR PLUG
Crankshaft Sensor	DARK BLUE/WHITE	(-)	AT ECM MODULE NEAR DRIVERS SIDE OF FIREWALL...PIN #12 - BLUE PLUG
Camshaft Sensor	BROWN / WHITE	(-)	AT ECM MODULE NEAR DRIVERS SIDE OF FIREWALL.PIN #73 - BLUE PLUG..
Speed Sense	DARK GREEN / WHITE	(AC)	AT ECM MODULE NEAR DRIVERS SIDE OF FIREWALL...PIN #50 - CLEAR PLUG
Parking Lights	BROWN	(+)	AT VEHICLE LIGHT SWITCH
Brake Lights	WHITE	(+)	AT SWITCH ABOVE PEDAL
Reverse Lights	LIGHT GREEN	(+)	AT DRIVERS DOOR SILL HARNESS OR TRAILER CONNECTOR
Horn	BLACK	(-)	IGNITION SWITCH HARNESS

Power Unlock		WHITE		(+)		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 LOCATION
	PowerLock		LIGHT BLUE		(+)		AT DOORLOCK RELAY MODULE ON PASSENGER SIDE OF TRANSMISSION HUMP NEAR FIREWALL

M.E.C.P & First-Class

Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!

tommy...

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Joined: December 10, 2004

Location: United States

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 Type		GM PASSLOCK II® ANTI-THEFT SYSTEM
	Anti-Theft Descript		THE 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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Joined: November 19, 2002

Location: North Dakota, United States

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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Joined: November 19, 2002

Location: North Dakota, United States

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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Joined: June 20, 2008

Location: New Mexico, United States

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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Joined: November 19, 2002

Location: North Dakota, United States

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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05 GMC C5500 Duramax Diesel Wiring

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