Vref or Vbat
Lead Driver
Joined: Sep 2007
Posts: 8,180
Likes: 669
From: Scio, OR
VREF is a conditioned regulated constant 5v power source supplied by the PCM. VBAT is battery voltage, which can vary from 12 to 15 volts.
The purpose behind VREF is to give sensors a precise power input, so that you can reliably conclude that a certain output value is what it is. If the input were variable, like VBAT is, then the output wouldn't be reliable.
The purpose behind VREF is to give sensors a precise power input, so that you can reliably conclude that a certain output value is what it is. If the input were variable, like VBAT is, then the output wouldn't be reliable.
I'm hitting easy street
Joined: Nov 2009
Posts: 6,395
Likes: 27
From: Central Oregon
VREF ("My notes indicate that this is the Calibration Voltage Input", comment by James )
TXD: 07E0221155 (cheezit, I think this would be the PID # 1155)
RXF: 046205110655
RXD: 3010
MTH: 000133330000
NAM: CVI
So, I'm curious if it is reading right. The Name on the Gauge is set as CVI for now. That is how it came to me. So, let's just call it that.
During my taping of the gauge, it kept reading 4. So, would this be a "good" reading if it is reading 4 all the time? I might have to ask for an update or a check involving this number. The Author of the gauge said above "My notes indicate that this is the Calibration Voltage Input"
Does that make sense?
Here is the video of the gauge, it appears at 1:14.
http://www.youtube.com/watch?v=DfePhk0d9zM
Thread Starter
|
Elder User
Joined: Aug 2003
Posts: 933
Likes: 0
From: Québec
Trending Topics
Fleet Owner
Joined: Nov 2003
Posts: 27,915
Likes: 3,626
I guess you just didn't like my answer (posted in your previous thread) to this question ..............
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
Hotshot
Joined: Apr 2010
Posts: 19,071
Likes: 240
From: Saratoga Springs,UT
Ok, now I'm interested in this. I have the Vref set up in my SC II.
VREF ("My notes indicate that this is the Calibration Voltage Input", comment by James )
TXD: 07E0221155 (cheezit, I think this would be the PID # 1155)
RXF: 046205110655
RXD: 3010
MTH: 000133330000
NAM: CVI
So, I'm curious if it is reading right. The Name on the Gauge is set as CVI for now. That is how it came to me. So, let's just call it that.
During my taping of the gauge, it kept reading 4. So, would this be a "good" reading if it is reading 4 all the time? I might have to ask for an update or a check involving this number. The Author of the gauge said above "My notes indicate that this is the Calibration Voltage Input"
Does that make sense?
Here is the video of the gauge, it appears at 1:14.
YouTube - Scangauge II
VREF ("My notes indicate that this is the Calibration Voltage Input", comment by James )
TXD: 07E0221155 (cheezit, I think this would be the PID # 1155)
RXF: 046205110655
RXD: 3010
MTH: 000133330000
NAM: CVI
So, I'm curious if it is reading right. The Name on the Gauge is set as CVI for now. That is how it came to me. So, let's just call it that.
During my taping of the gauge, it kept reading 4. So, would this be a "good" reading if it is reading 4 all the time? I might have to ask for an update or a check involving this number. The Author of the gauge said above "My notes indicate that this is the Calibration Voltage Input"
Does that make sense?
Here is the video of the gauge, it appears at 1:14.
YouTube - Scangauge II
I have been following with the scangauge as well
anyway I put in the x-gauge for the vref today and I got the exact same reading you did 4v
before I did it though I was expecting it to read 5v
I think this Xgauge needs to be changed a little if its possible
I'm hitting easy street
Joined: Nov 2009
Posts: 6,395
Likes: 27
From: Central Oregon
Kidoo, I was just coming back here to give the updated gauge codes!
For VREF, it should now read with extra decimal points to give a more accurate reading!
Here it is:
VREF
TXD: 07E0221155
RXF: 046245110655 <<<<<<<<<<<<<<<<This changed
RXD: 3010
MTH: 006433330000 <<<<<<<<<<<<<<< This changed
NAM: CVI
For VREF, it should now read with extra decimal points to give a more accurate reading!
Here it is:
VREF
TXD: 07E0221155
RXF: 046245110655 <<<<<<<<<<<<<<<<This changed
RXD: 3010
MTH: 006433330000 <<<<<<<<<<<<<<< This changed
NAM: CVI
Thread
Thread Starter
Forum
Replies
Last Post
