Question about 2002 Buick LeSabre

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Service engine soon reset - 2002 Buick LeSabre

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Hold reset button down for a few more seconds than you have.

Posted on Jan 14, 2015

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SOURCE: How to reset Service Engine Soon light after replacing gas cap? Took to AutoZone when the Service Engine Soon light came on Error code P0440.

Disconnect the negative battery cable for 30 minutes. Reconnect after and the code will clear. However if the problem persists, the code will come back with in 20 miles or 30 minutes.

Posted on Aug 02, 2014

vortexfuel
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SOURCE: How to reset Service Engine Soon light after replacing gas cap? Took to AutoZone when the Service Engine Soon light came on Error code P0440.

You need a monitor or scanner capable to erase code to reset

Posted on Dec 16, 2014

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2 Answers

How to reset Service Engine Soon light after replacing gas cap? Took to AutoZone when the Service Engine Soon light came on Error code P0440.


Disconnect the negative battery cable for 30 minutes. Reconnect after and the code will clear. However if the problem persists, the code will come back with in 20 miles or 30 minutes.

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Do you have one light or two.You need OBDII scanner to read and reset light.

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Service Engine Soon light reset.


The Service Engine Soon light comes only when the engine computer control unit (called the PCM) senses a fault in the electronic controls of the engine and/or the emission system, it is not related to the oil change, there are about 200 possible faults that turn the light on, to know what has developed a problem you must have the system tested, this is called an OBD2 fault code test, Kragen and Autozone parts stores do this testing for free.


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The Service Engine Soon indicator light tells the Service tech that the Pathfinder's ECM detected and Issue with the engine's management system. Your going to have to get the Pathfinder Scanned for DTC codes so you can addressed the issues that is in the ECM's history. Once the issues have been addressed, the Service engine light will reset it self or the service tech can reset it for you. The light will stay on or come back if the issues have not been repaired. Good luck and hope this helps.

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are you sure thats a main-lamp, not a ser-eng-soon meaning check engine as something is wrong, some car makers use service engine soon or check engine to let you know you have a problem.

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hi, this is just a reset issue. sometimes the CPU can become confused. the original warning that informed you about your gas cap is still in the cpu's memory. you will have to reset the cpu and, this will clear the warning. After the reset, it will stay off. chevy cpu's tend to do this from time to time.

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go back & sleep with the mechanic, that always works for my sister.

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'service engine soon' light


HI
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

WITH MY BEST WISHES

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