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Hooking up a tachometer into a 03 civic

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=83736
Printed Date: July 13, 2025 at 11:20 PM


Topic: Hooking up a tachometer into a 03 civic

Posted By: 99civicex
Subject: Hooking up a tachometer into a 03 civic
Date Posted: October 05, 2006 at 1:32 PM

Anybody knows how to hook up a tachometer in a 03 civic coupe dx?  Any wiring diagrams for this?



Replies:

Posted By: tbone587
Date Posted: October 05, 2006 at 2:55 PM
It should be a blue wire on a two pin test plug on the passenger side of the battery.



Posted By: Chris Luongo
Date Posted: October 06, 2006 at 7:26 AM
No need to go under the hood for tach signal.

In the fuse box, above the fuses, are several light green plugs.

Look for a plug toward the left, with about 6-8 wires in it........ I believe it is the only plug there that has an orange wire in it.

In that same plug, the one with the orange wire.......blue is tachometer.

If you unplug the plug, it'll reset the factory radio...........don't unplug it unless you have the radio's anti-theft code.



Posted By: 99civicex
Date Posted: October 10, 2006 at 1:51 PM

Is there any wiring diagrams for this?


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