External Temperature Gauge
#1
External Temperature Gauge
I have noticed, particularly in the winter, that my temperature gauge is about 5 degrees too warm. I do understand that road surfaces can have an impact on the temperature reported - but even on a non heated road it is too high. I read somewhere that you can calibrate the thermometer - does anyone know how to do this?
Tim
Tim
#2
Re: External Temperature Gauge
I'd ask your service dept about checking it; I don't know of any user-adjustable method, since we have no input to the OBD system.
I think the display is taken from the OBD inlet air temp sensor, which is not necessarily equal to the outside air temp- the air has already swirled around in proximity to the engine a little. With a larger temp difference in winter providing a more rapid temp change, the reading will be "more wrong" in winter than summer.
I think the display is taken from the OBD inlet air temp sensor, which is not necessarily equal to the outside air temp- the air has already swirled around in proximity to the engine a little. With a larger temp difference in winter providing a more rapid temp change, the reading will be "more wrong" in winter than summer.
#3
Re: External Temperature Gauge
Nope - it's a little different than that. There's an external sensor behind the bumper cover on the LH (driver's) side. You adjust the calibration via the trip odo reset button, IIRC.
The procedure is in the owner's manual. I don't have that in front of me right now, but it's there. I'd suggest getting a reference source to compare before adjusting it.
BTW - I see they've now removed the 'download owner's manual' option from OwnerLink (gee, do they get a kickback from Helm ?) , so you'll have to refer to your printed copy.
An interesting (?) aside - For DX / LX's that didn't get the sensor, it's available as a dealer-added option, but for those cars where it's added after the factory, the car can't also have OEM fog lights installed (although EX owners can get fogs, having had the sensor factory-installed).
The procedure is in the owner's manual. I don't have that in front of me right now, but it's there. I'd suggest getting a reference source to compare before adjusting it.
BTW - I see they've now removed the 'download owner's manual' option from OwnerLink (gee, do they get a kickback from Helm ?) , so you'll have to refer to your printed copy.
An interesting (?) aside - For DX / LX's that didn't get the sensor, it's available as a dealer-added option, but for those cars where it's added after the factory, the car can't also have OEM fog lights installed (although EX owners can get fogs, having had the sensor factory-installed).
#4
Re: External Temperature Gauge
Actually I can answer my own question. From the manual:
You are able to adjust the outside temperature display plus or minus 5 degrees. Hold the select/reset **** for 10 seconds. The following sequences appear, 1 second at a time: 0,1,2,3,4,5,-5,-4,-3,-2,-1,0, 1 (0,1,2,3,-3,-2,-1,0,1)
When the temperature reaches the desired value, release the select/reset ****. You should see the new temperature displayed.
You are able to adjust the outside temperature display plus or minus 5 degrees. Hold the select/reset **** for 10 seconds. The following sequences appear, 1 second at a time: 0,1,2,3,4,5,-5,-4,-3,-2,-1,0, 1 (0,1,2,3,-3,-2,-1,0,1)
When the temperature reaches the desired value, release the select/reset ****. You should see the new temperature displayed.
#5
Re: External Temperature Gauge
Originally Posted by timwgordon@gmail.com
I have noticed, particularly in the winter, that my temperature gauge is about 5 degrees too warm. I do understand that road surfaces can have an impact on the temperature reported - but even on a non heated road it is too high. I read somewhere that you can calibrate the thermometer - does anyone know how to do this?
Tim
Tim
The best way to calibrate a digital thermometer is with an "ice point" cell. Immerse the sensor in some ice water then find out where the adjustment/calibration potentiometer is and adjust accordingly to 32F or 0C. I wouldn't mess with the high end, 212F, 100C as you could get burned.
Thread
Topic Starter
Forum
Replies
Last Post
fitteacher
Mercury Mariner Hybrid
1
10-09-2009 09:07 AM
fitteacher
Ford Escape Hybrid
1
02-02-2009 05:18 AM
HCH03
Honda Civic Hybrid
5
01-09-2006 06:46 AM