2004 dodge ram diesel tach wire
Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=41641
Printed Date: May 10, 2025 at 9:33 AM
Topic: 2004 dodge ram diesel tach wire
Posted By: chrane
Subject: 2004 dodge ram diesel tach wire
Date Posted: October 25, 2004 at 7:05 PM
the factory remote start system i was putting in today at the dealership said the tach wire was a dark blue/grey on the 60 pin connector on the computer... but there is no such wire, i think its because the remote start was for a 2003.... we checked on the internet and in books but couldnt find it, and there's too many wires to probe and plus they are a full arms reach so its almost impossible to test them all, does anybody know the color for this wire or where i can find out?? ------------- Aaron
Replies:
Posted By: Teken
Date Posted: October 25, 2004 at 7:28 PM
The tach wire for the 2004 can be located at the passenger side engine compartment which runs across the top of the fire wall. The color is Brown / Blue.
Regards
EVIL Teken . . .
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Knowledge is power. But only if you apply that knowledge in a positive way, which promotes positive results in others.
EVIL Teken . . .
Posted By: Velocity Motors
Date Posted: October 25, 2004 at 7:32 PM
The PCM is on the passenger side firewall. On diesel models the tach wire is at the ECM on the lower driver side of the engine, 60 pin plug, pin 24.ORANGE connector is where pin 24 is found. This is all the iinformation that I have for this wire on this truck. Have you tried looking for this wire inside the instrument cluster ? ------------- Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: mo12v
Date Posted: October 25, 2004 at 7:45 PM
I have same as Velocity Motors, GRAY / Black wire
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MO
Don't Learn from Others Mistakes
You Might Be the One That Knows.
Posted By: chrane
Date Posted: October 25, 2004 at 8:33 PM
gray/black, isnt the same as ORANGE
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Aaron
Posted By: Teken
Date Posted: October 25, 2004 at 9:06 PM
The plug is Orange, the alternate wires you are looking for are dark blue / grey in color. The information is referenced from Directechs wiring guide, the other is from Installogy's Wire Magic.
Regards
EVIL Teken . . .
-------------
Knowledge is power. But only if you apply that knowledge in a positive way, which promotes positive results in others.
EVIL Teken . . .
Posted By: gatf4
Date Posted: October 25, 2004 at 9:10 PM
I just finished my install on that exact truck today. The wire you are looking for is Blue -Grey. I pulled the left front tire (15/16ths) and left inner wheel well ( 7 or 8 mm's I think) out and you can actually get to it very easily. The connector you want on the ECM is the one on the left, 60 pins, 10 pins to each row. 3rd row down first pin is 21, go three more to the right and you should see it. After disconnecting the batteries I had to unbolt the Allen screw in the middle of the connector and take out one 10 MM bolt up on the harness. That allowed me to pull the connector over near the frame rail so I could pull that wire up a little to solder the connection, worked like a charm. Good luck
Posted By: extreme1
Date Posted: October 25, 2004 at 9:55 PM
it is infact dark blue/grey.
All 2004 and 2005 diesel trucks and most of the 2003 trucks have this wire. Some of the 2003's with a PCM on the passenger firewall have a grey/black wire in the top plug.
None of these trucks have a wait to start wire.
I usually just reach down through the top of the engine to get it.
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Shaughn Murley
Install Manager, Dealer Services
Visions Electronics
Red Deer, Alberta
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