Fuel range currently fluctuating and inaccurate?

2010 NISSAN ALTIMA
228,514 MILES • 4 CYL • AUTOMATIC
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DAVID CHANDLER FARR
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What part on the car listed above reads the fuel range and how many miles until empty because mine is currently fluctuating and inaccurate. so, how do I fix this?
Jul 9, 2023 at 6:52 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,249 POSTS
This is controlled by the BCM and PCM, I would run a CAN scan to see what codes come up. You can get a CAN scanner (Controller Area Network) which will work on most cars from Amazon.

Here is a video to show you how:

https://youtu.be/u-4syLc-ifQ

Please let me know what codes so we can fix it.
Jul 10, 2023 at 4:16 AM
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DAVID CHANDLER FARR
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  • 41 POSTS
Well, I currently have no check engine light as before I was getting it and having these codes, these attached photos were the only codes I was getting, but like I said I have no check engine light right now.
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Jul 10, 2023 at 5:55 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,249 POSTS
Thank you, these won't have anything to do with the mileage indicator. Is the code reader you or using a CAN scanner? I would clear the codes to see if they come back.
Jul 11, 2023 at 3:20 AM
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