Jump to content

Factory Cruise Control Wiring I/O on V8


Recommended Posts


I've got a cruise control unit from a donor '95 Discovery V8i that I plan to reuse on my project. Most of the inputs and outputs are obvious from the haynes manual but not sure about the speed signal as it comes from the instrument pack in the dash. Is this just the speed signal from the sensor relayed through the dash or is there more to it?

The original dash is not being reused. If I could simply split the signal from the sensor to a speedo and the cruise control that's be great! I'm planning to bench test the system using an Arduino to fake the appropriate signals.


Link to comment
Share on other sites

Great description of the system on the following link but it stops short of saying what the peak pulse voltage is.


Often in electronics the signal voltages are dropped to 3.3 or 5V. If no one knows for sure I will try 3.3 and 5V before chucking the full 12V signal at it!

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Create New...

Important Information

We use cookies to ensure you get the best experience. By using our website you agree to our Cookie Policy