EATC displaying *C now... what happened? - Ranger-Forums - The Ultimate Ford Ranger Resource


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  #1  
Old 01-15-2008
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EATC displaying *C now... what happened?

I turned on my EATC the other day on my way home, and now it's working in celsius instead of farenheit... What happened and how do I get it back? lol
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Old 01-15-2008
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unless you connected the wires to make it metric, then I would say you have a bad headunit.....look in Grigg's how-to and make sure the wire for the metric isn't touching a + wire...

mine is going bad....it wont control the heat side of it very well in automatic...
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Old 01-15-2008
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Well I checked Griggs' cardomain and it looks like I lost 12v power to the red wire coming from the headunit. I'll have to recheck that. Anyone have any idea what might have happened? I've had the headunit for nearly a year now.
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Old 01-15-2008
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if you lost that power from the headunit, then your head unit is probably going bad...
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Old 01-15-2008
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That's a signal into the head unit, and a bad splice or whatever could have done it? I haven't looked at my own data, lol. I though that was supposed to be grounded for one type, and connected to 12 volts for the other type of display.
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  #6  
Old 01-15-2008
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Quote:
Originally Posted by John Grigg's How-To
Switched 12 volts connection

Now you will bring these EATC wires together into one end of of a splice and it may need to be a yellow one if you have a lot of these in your configuration:

RD - English/Metric (only if you want Fahrenheit units)
I would say if you wanted Metric, then do not connect the RD wire.....

i think you have a lose wire maybe Kyle...
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Old 01-15-2008
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umm.. hold on just a sec, before you go tearing into any wiring...

on my OHC, I can hit the mode button once and change it from F to C, hit it a second time, and change it to [blank], and hit it a third time to return to the F setting. Maybe you (or a passenger) accidentally toggled the MODE ?
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Old 01-15-2008
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Quote:
Originally Posted by turbo
umm.. hold on just a sec, before you go tearing into any wiring...

on my OHC, I can hit the mode button once and change it from F to C, hit it a second time, and change it to [blank], and hit it a third time to return to the F setting. Maybe you (or a passenger) accidentally toggled the MODE ?
the EATC is totally different from the OHC...there is WIRING that controlls the standard/metric units on it......no button to push to change it.....
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Old 01-15-2008
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Now how do I get mine TO display in *C
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  #10  
Old 01-15-2008
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Quote:
Originally Posted by jasgud
Now how do I get mine TO display in *C
Your EATC or your OHC?
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Old 01-15-2008
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ah, okay... [is it obvious, yet, that I haven't installed my EATC stuff?? ] ..sorry for the unintended sideline.
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  #12  
Old 01-15-2008
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Quote:
Originally Posted by turbo
ah, okay... [is it obvious, yet, that I haven't installed my EATC stuff?? ] ..sorry for the unintended sideline.
notta problem.....if/when you do the EATC mod, you will/should read the How-To enough to almost memorize it......i know I did....
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Old 01-15-2008
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F = Battery voltage on red wire to EATC
C = No voltage on red wire

In the original Explorer installation, the temp scale is driver selectable. A button on the Message Center keypad causes the displays of both the MC and EATC to toggle between Centigrade and Fahrenheit together. It would be easy make the temp scale in a Ranger EATC selectable by interrupting the B+ on the red wire using an on/off switch.
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Old 01-15-2008
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oh, I know, Maurice... I've already printed it out and sectioned it into pages, embedded all the pictures in amongst the text, etc. ...and that's after reading all through it twice, online!
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  #15  
Old 01-15-2008
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I should have submitted it as a thesis for my EATC degree...sheesh...
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  #16  
Old 01-15-2008
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ya, that how to is very good, have read it many times, and when i get all my parts sorted out i will be excited for this mod to work. I had the same problem with the *C on my HU with the red wire hooked up to 12V , then it just went away. So i have no idea why it did that, sounds like the opposite happened to you.
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  #17  
Old 01-15-2008
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Quote:
Originally Posted by n3elz
I should have submitted it as a thesis for my EATC degree...sheesh...
should have, but would the "helper" authors get credit as well


BTW Grigg's, you have yet to put in that extra relay I sent you.....you told me to remind you if you haven't.....
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  #18  
Old 01-15-2008
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No, you don't get the degree, you just get mentioned in my citations. Honorably of course. Honorable mention...
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  #19  
Old 01-15-2008
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dang.....i was hoping for another piece of meezly paper to hang on my wall at work
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Old 01-15-2008
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Maurice --

...just make 'em up, frame 'em, and hang 'em on the wall. That's what I do! ...mostly, just to see if anybody reads 'em. The one I have now is from the "Drop Table Institute of Data Technology and Security", conferring a Master of Database Integration, Implementation, Manipulation, Extrapolation, and Exploitation on me, as of April 1, 2007. It's signed by Larry Ellison and Larry Wall...
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  #21  
Old 01-15-2008
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lol! Nice one.
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