The ambient temp reading inaccurate.

Asked by dwt999 Jul 18, 2020 at 01:21 PM about the 2011 Subaru Outback 2.5i Premium

Question type: Maintenance & Repair

The ambient temp reading in Subaru outback stays the same. (starts at 77 when back out of garage and stays at 77 for the whole drive.  I replaced the sensor and when I tried it, still read 77 for a drive of 3 miles around neighborhood. It seemed to have 'gone bad' after i had work done on roof where they blew a fuse for interior lights.  Don't know if related.

3 Answers

It goes blank. I just ran an experiment. The sensor read 83 in my garage. I then put an ice bag on the sensor at 3:38PM and got the following readings: 3:38 83 3:42 68 3:35 60 3:46 57 3:48 53 3:50 47 Pulled Ice bag off Drove around and ran an errand till 4:15. The temp never changed from 47. The outside temperature is 86.

I ran another experiment. I Cooled down the sensor that was on the car to 49 degrees. I then swapped out the sensors to one that was at room temperature (about 70). When I plugged in the room temperature sensor, the display still said 49 degrees! Where in the car is this number being held? And why is it not updating to the reading that is being sent to it by the sensor?

Sounds like a good possibility. Is there a part number? Is it in the 'too hard' pile? I'm not sure what else on that display would be controlled by same chip but other numbers (MPG, Gallons to empty, etc) all seem OK.

Your Answer:

Outback

Looking for a Used Outback in your area?

CarGurus has 1,142 nationwide Outback listings starting at $3,800.

Postal Code:

CarGurus Experts

  • #1
    Mark Weiner
    Reputation
    33,230
  • #2
    TheSubaruGuruBoston
    Reputation
    28,320
  • #3
    Keith Cahalan
    Reputation
    3,310
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Subaru Forester
35 Great Deals out of 1,359 listings starting at $3,995
Used Toyota RAV4
140 Great Deals out of 3,035 listings starting at $3,900
Used Honda CR-V
192 Great Deals out of 4,984 listings starting at $440
Used Subaru Legacy
14 Great Deals out of 222 listings starting at $3,200
Used Toyota 4Runner
27 Great Deals out of 553 listings starting at $7,700
Used Toyota Tacoma
43 Great Deals out of 741 listings starting at $9,975
Used Subaru Impreza
35 Great Deals out of 646 listings starting at $4,299
Used Toyota Camry
47 Great Deals out of 1,118 listings starting at $2,500
Used Toyota Highlander
38 Great Deals out of 828 listings starting at $7,498
Used Honda Pilot
38 Great Deals out of 964 listings starting at $1,230
Used Honda Accord
47 Great Deals out of 974 listings starting at $2,995
Used Jeep Wrangler
133 Great Deals out of 5,957 listings starting at $8,990

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.