Question about 2003 Nissan Sentra

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'service engine soon' light

Hw to reset the 'service engine soon' light on my 2003 nissan sentra??

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without using the scan tool you can do it by disconnected the the battery for ( 24 h) to reset it or to ( 5 m) to reset the service engine light but the fault sty in the memory


Posted on Jul 10, 2008

  • Joseph Apr 26, 2013

    thank you



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I have a NISSAN SENTRA 2008, and I have service engine soon light on, What that means? Thank you

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Service engine soon light

The light comes on when the car's computer detects that something has an incorrect reading that is sending that incorrect reading from the sensing unit to the computer.

Here's how i would attempt to solve it. To reset an service engine soon light take the positive terminal off of the battery and let it drain all the voltage and currents in your vehicle. Like try turning on your radio and turning your car over while the positive terminal is taken off of the battery terminal.

I would say let it sit for atleast 15 minutes then put it back on and start the car back up. If the light still comes back one then you have a small problem that could be many different little things

Check to see that your gas cap isn't worn out and still keeping a seal so when you take it off you should hear air escaping from it

Could be a filter in your fuel tank.

Could be o2 sensors

The list could go on, but to make sure before you start spending a huge amounts of money go to a shop and get them to plug in a scanner into your car to see what exactly the code is.

Good luck bud!

Aug 12, 2009 | 2003 Nissan Sentra

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Service engine soon light is on again....

buy yourself a scanner [ebay] only cheap & learn to do it yourself with its manual it comes with alist of error codes & their meaning
costs less than the last time!

Jul 20, 2009 | 2007 Nissan Sentra 2.0 SL Sedan

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