Automatic Transmission 2-Speed thru 10-Speed GM Autos | Converters | Shift Kits
Sponsored by:
Sponsored by:

HELP PLEASE 4L60 wiring questions

Thread Tools
 
Search this Thread
 
Old Sep 2, 2008 | 04:53 AM
  #1  
oldievette's Avatar
Thread Starter
Teching In
15 Year Member
 
Joined: Jun 2006
Posts: 10
Likes: 0
Question HELP PLEASE 4L60 wiring questions

Hello all, I hope someone can help. I'm wiring a GM transmission controller (4L60) with a LS3. I have a couple of questions:
1. The book says to splice connector C2 from the transmission controller into the throttle position sensor. The transmission plug is a 3 pin with red, black, and white. The engine throttle plug is a 6 pin (drive by wire), with green, blue w/black tracer, violet, brown, yellow, and red w/ pink tracer. Can anyone help with the spice sequence?
2. Connector C2 calls for a tach signal. It is a 2 pin with white, and black wires. I'm thinking that all I have to do is use the white tach wire from the ECU to white on the TCU and black is ground. Is that right?
3. The TCU calls for connecting plug C7 (output speed sensor) into the tailhousing. That works except that the ECU is already plugged in that location. Do I need to splice these two together, or do I not need the ECU plugged into the transmission? The TCU is black and red 2 pin, and the ECU harness uses a purple w/black tracer, and a green w/black tracer.
Any help is really appreciated, as this 4L60 is a new thing to me. Thanks again. Mike Coletta
Reply




All times are GMT -5. The time now is 04:47 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE