2003 Accord EX Tachometer 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=81129
Printed Date: May 07, 2025 at 12:47 AM
Topic: 2003 Accord EX Tachometer Wire?
Posted By: skyh00k
Subject: 2003 Accord EX Tachometer Wire?
Date Posted: August 02, 2006 at 9:32 PM
It's supposed to be a blue/red or blue wire in the gray connector, pin 23 at the ECM but there's no wire at that spot. I tested all the rest in that connector but can't locate one that does the 1-6 volts AC.
Anyone have ideas? I'd really rather not go to the engine compartment to locate a tach wire. Thanks.
Replies:
Posted By: profuse007
Date Posted: August 02, 2006 at 10:01 PM
that info above is for V6.
i found it easier to run tach wire out w/ siren
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Houston,TX
"The two most common elements in the universe are H+ and stupidity" (Ellison).
Posted By: skyh00k
Date Posted: August 02, 2006 at 10:04 PM
Forgot to mention it's a V6.
This is for a Compustar remote start installation.
"run tack wire out w/ siren" - what does that mean exactly?
Posted By: swamprat323
Date Posted: August 02, 2006 at 10:25 PM
run the tach wire with the siren wire is what he is talkign about.
Posted By: skyh00k
Date Posted: August 03, 2006 at 7:45 AM
At this point I'm open to pulling the signal through the firewall. So if you have any information about where to pull the signal from either inside or out I would greatly appreciate it.
Posted By: mdbetts
Date Posted: August 03, 2006 at 10:17 AM
There is a test connector under the hood, by the battery or the drivers shock tower. It has a black plastic cap with a single blue wire in it. There is usually blue tape holding it to a harness under the hood. It is there for the V-6 or, hope this helps.
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cant hold me!
Posted By: JWorm
Date Posted: August 03, 2006 at 5:50 PM
mdbetts wrote:
There is a test connector under the hood, by the battery or the drivers shock tower. It has a black plastic cap with a single blue wire in it. There is usually blue tape holding it to a harness under the hood. It is there for the V-6 or, hope this helps.
There is no test connector under the hood on 2003 and up.
I've always got the tach wire at the ECU on that car. The half dozen or so I have done were blue. I don't recall ever seeing a blue/red one. I don't think it varies with engine idle either. It will meter around 2-6 volts AC.
Posted By: skyh00k
Date Posted: August 03, 2006 at 7:10 PM
I've seen a couple that measured that low (most were either 0v or ~30v AC) but none varied much at all with the RPM's. Shouldn't I see a variance when racing the motor?
Posted By: honorabledog
Date Posted: August 04, 2006 at 8:37 AM
I just did a 4cylinder and it was the blue/ red. it was the easiest route. Remove the corner plastic trim on the console where it meets the dash(both sides) and run the wire under the dash through the console to the passenger side. If your wire is not blue it should still be the 23 pin.
Posted By: skyh00k
Date Posted: August 05, 2006 at 11:35 AM
For the record, it was a RED / blue wire, pin 30, on the gray connector.
Posted By: skyh00k
Date Posted: August 05, 2006 at 2:50 PM
Here we go again, the Brake wire is supposed to be BLACK/ White + at the brake pedal switch. There's a BLACK/ white wire there but it doesn't test positive on pedal push.
If anyone has info please post. I will continue to investigate and report back.
Posted By: skyh00k
Date Posted: August 05, 2006 at 3:40 PM
Scratch that last post. I had a bad jumper.
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