Nissan Frontier Forums: Resetting Service Engine Light

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Nissan Frontier Forums : Problems / Technical

Topic: Resetting Service Engine Light

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01Frontier
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Posted: Jun 11 2009 at 11:56pm \| IP Logged

I have had some idling surges in my 01 Frontier 2.4L over the past month. Took it to the shop and they diagnosed the IACV was bad. Up to this point just had the idle surge, no service engine light on. To confirm this, I disconnected the IACV (idle air control valve) and the truck idles perfect, hook it back up and it goes back to surging. I ordered the IACV valve, but now the service engine light remains on even with it connected back up. I tried to disconnect the battery for 10 minutes but the service engine light is still on and the IACV is connected back up. I have not installed the new IACV yet (will do it this weekend), but I am trying to find out how to reset the check engine light once I have the new IACV installed.

Anyone have any ideas? I really dont want to take it to a shop and have them charge me $100 to reset this light.

Thanks... 01 Frontier

davidjbrady
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Posted: Jun 12 2009 at 9:03am \| IP Logged

I used to have a 94 pathfinder, and could reset the engine light by the ECM, located under the passeneger seat. I would turn it to position 4, and then back to 1 to reset it, but this was OBD 1 program, I believe anything 95 and newer uses OBDII. I thought the only way to turn off the light was to have it reset by the scanner tool, I did hear you can go to Auto zone and they will loan you ( for free) the OBDII scanner to reset your codes.
David

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Boomer
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Posted: Jun 12 2009 at 3:55pm \| IP Logged

Auto Zone here in PA will NOT turn off codes, only read them. Either find an OBD-II reader that does it and get access to it or go to the dealer. The latter is $$$. Sometimes they charge enough, you could buy a scanner that turns off codes for the same price.

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2007 Nissan Frontier SE 4X4
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frontierguy
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Posted: Jun 23 2009 at 8:41pm \| IP Logged

Once the malfunction is corrected the SES will go out after so many key cycles(trips).

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'10 Altima SL
Traded 08 Frontier for 16 Frontier SV CC Long box, quite an upgrade. I do miss the 6 speed and Dynomax ex.

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surfahjammer
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Posted: Jul 13 2009 at 4:59am \| IP Logged

Could be just air in your fuel line that's causing the light to go on. I think once you install the new IACV it'll go off. Also check your gas cap turn it until you hear at least 5 or 6 clicks. Something as simple as a loose gas cap can trigger the light to go on. Good luck!

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