Difference between tach & Speed sense

Printed From: the12volt.com
Forum Name: Vehicle Wiring Information & File Requests
Forum Discription: Request Car Alarm, Car Stereo, Cruise Control, Remote Starter, Navigation, Mobile Video, and Other Vehicle Specific Wiring Info, Manuals, Tech Tips
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=7141
Printed Date: May 08, 2025 at 3:19 PM

Topic: Difference between tach & Speed sense

Posted By: camry0099
Subject: Difference between tach & Speed sense
Date Posted: December 25, 2002 at 6:25 PM

Good day, Is there a difference between "tach & speed sense"? I'm doing a R/S for a co-worker soon and I'm gathering all the info for the install. I've also wondering about the child safety feature. Is it necessary? I own two Camry Le's, 92 & 94. Haven't had a problem with the locks. Happy Holidays!!!!!!!!

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camry9298

Replies:

Posted By: the12volt
Date Posted: December 25, 2002 at 6:44 PM

Yes there is a difference. The tach signal provides a reference to the engine's speed (measured in revolutions per minute or RPM). The vehicle speed signal (VSS) provides a reference to the vehicle's velocity or speed (measured in pulses per mile or PPM).

If you intend to add keyless entry to the vehicle, you'll need to connect to the child safety wire to unlock the doors. https://www.the12volt.com/doorlocks/page4.asp#tc I'll add "updating the current child safety color wires" to my "to do" list.

Here's the information I have for both of your vehicles: 1992-93 Toyota Camry Alarm Information, 1992-93 Toyota Camry Cruise Information, 1994 Toyota Camry Alarm Information, 1994 Toyota Camry Cruise Information

Posted By: camry0099
Date Posted: December 26, 2002 at 4:50 PM

Thanxxx for the info 12volt.

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camry9298

Posted By: camry0099
Date Posted: December 26, 2002 at 4:52 PM

Oh!, did I mention that my Co-workers' Camry is a 2002? Any difference?

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camry9298

Posted By: the12volt
Date Posted: December 26, 2002 at 5:34 PM

You're welcome, glad I could help. Yes, the 2002 is different. You can find the info for it here.