tach wire, 01 corvette
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=97798
Printed Date: November 04, 2025 at 5:50 AM
Topic: tach wire, 01 corvette
Posted By: vger7
Subject: tach wire, 01 corvette
Date Posted: October 09, 2007 at 2:34 PM
I am trying to find the correct wire to hook my tach wire to. My car is an 01 vette (with 6 spd trans). In the instructions,from the manufactuer, I'm supposed to look for a white wire at the coil or coil pack. There are no white wires to be found. I've hooked the tach wire at the pcm red connector pin # 10, and it's not working. Every thing else is hooked up and ready to go. Is there some place else this wire can be connected?
Replies:
Posted By: profuse007
Date Posted: October 09, 2007 at 3:45 PM
Tach white (AC) at PCM
The PCM (Power Control Module) is located on the PASSENGER SIDE OF THE ENGINE COMPARTMENT. You will need to remove the right front tire and remove access panel in the Inner fender to get to the PCM. The TACH WIRE is located in the BLUE connector Pin 35.
Tach signal can also be found at a coil, usually the unique wire color from all coils.
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Houston,TX
"The two most common elements in the universe are H+ and stupidity" (Ellison).
Posted By: vger7
Date Posted: October 10, 2007 at 12:09 PM
Thanks Profuse007. I appreciate your help.
Posted By: profuse007
Date Posted: October 10, 2007 at 12:18 PM
not a problem
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Houston,TX
"The two most common elements in the universe are H+ and stupidity" (Ellison).
Posted By: vger7
Date Posted: October 12, 2007 at 2:46 AM
Profuse007, you said i should use pin 35 in the blue connector for the tach wire hook-up. what color wire should i be looking for and, what is that wires function? again, thanks for your help.
Posted By: techman93
Date Posted: October 12, 2007 at 6:23 AM
on the plug you may see small numbers to denote where the numbers start. You may have to count them and they usually go by row down in sequence. See if the wire is white as it should be to where you were supposed to connect to.
Posted By: profuse007
Date Posted: October 12, 2007 at 1:25 PM
Yeah, color white like techman93 said. I believe I stated that above.
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Houston,TX
"The two most common elements in the universe are H+ and stupidity" (Ellison).
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