Question about 2002 Buick LeSabre

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Service engine soon light

Just recently the service engine soon light lit up not flashing or dinging just solid. We were told that in the manual there is a procedure to follow to turn it off. Where is it? We tried the gas cap thing but that wasn't it.

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  • shtrobe Apr 17, 2009

    My service engine soon light came on and I was wondering if anyone knows how to get the light to flash out the code. I think you can turn the ignition from acc. to on like three times or something and it will flash out a code that tells you your problem. Then you look it up on a chart and you will know if it is an o2 sensor or the fuel system or something general like that.



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You need to have the vehicle scanned or pull the code out with a code reader,and address/fix the code.If you do not repair the problem,you can clear the code,but the service engine light will come right back on.To clear the code,you can disconnect the negative terminal on the battery for at least 20 minutes,then reconnect the battery,but the car is going to be hard to get to idle,because sometimes the computer has to relearn how to idle the engine without stalling.Good luck.

Posted on Jul 10, 2008


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Posted on Jan 02, 2017


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I have a 2001 mustang bullitt that is showing service engine light on. Took it to mechanic and he put 2 different machines on it to show code for problem. No codes coming up and he can't turn off the...

There is a diagnostic procedure in the factory service repair manual for engine light lit ,no codes . Did you take it to ford dealer ? MIL - is referring to check engine , service engine soon etc...
  • MIL always on when engine is running (no DTCs):
  • MIL circuits
  • For Focus, Mustang, Town Car, Continental, LS6/LS8, Escape, Windstar, F-150, Expedition and Navigator/Blackwood:
  • Instrument Cluster, Section 413-01 of the Workshop Manual.
  • All Others:
  • GO to NB1

SERVICE ENGINE SOON indicator After the engine is started, the SERVICE ENGINE SOON indicator will prove out for a duration of three seconds. If the instrument cluster does not receive a message from the PCM within five seconds, the instrument cluster will illuminate the SERVICE ENGINE SOON indicator and log a diagnostic trouble code (DTC).

  • An indicator is inoperative/always on - SERVICE ENGINE SOON
  • Circuitry.
  • Bulb.
  • Instrument cluster.
  • PCM.
  • GO to Pinpoint Test P .

  • Did the SERVICE ENGINE SOON indicator illuminate?
Yes REFER to Powertrain Control/Emissions Diagnosis (PC/ED) manual.

No INSTALL a new instrument cluster; REFER to Instrument Cluster . CLEAR the DTCs. REPEAT the self-test.

Jul 18, 2017 | 2001 Ford Mustang

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92 Buick Roadmaster service engine soon light on solid. What pins do I jumper to get the flash code?

Jump pins A and B on the ALDL (data link connector). Turn the key on and the check engine light will flash the trouble codes.

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Message center going crazy with battery,service engine soon security and follows a dinging noise then the radio stops playing and locks up .

Look in owners manual,to familiarize yourself with check lights on dash
Need to pull codes,in order to proceed and repair malfunctions.

Apr 08, 2010 | 2002 Chevrolet Impala

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Check engine indicator light came on

The check engine light is not for maintenance related notifications, it is for indicating emissions and drivetrain malfunctions.
There are literally hundreds of causes for the light to illuminate on a modern vehicle, and you will need to take it to a repair shop or an auto parts store to have the diagnostic codes scanned to get an idea of what is wrong. Most auto parts stores do this for free. They also sell diagnostic scanners so you can do it yourself.
The range of problems can go from as simple as a loose gas cap to major transmission internal failures, etc, so it is best not to just guess at it.
If the light is lit solid, the vehicle is in most cases safe to drive until you can get the problem diagnosed; however if the light is flashing, you should shut the car off and have it towed. A flashing check engine light indicates a misfire so severe that it could cause catastrophic damage.

Oct 22, 2009 | 2004 Ford F150

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Dashboard Symbol

could mean time toi change oil or needs service,if u call dealer they might tell u its one or the other not sure though im leaning toward service engine soon

Aug 24, 2009 | 2002 Chevrolet Cavalier Coupe

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Service engine soon light

I would have the codes pulled. Some autoparts stores will do this for free. there may be a code stored in the cars ECM (computer)

Jul 21, 2009 | 1998 Oldsmobile Aurora

1 Answer

Service engine soon light is on

How to reset (erase the light):
Open the fuse access panel on the driver side. Youll see a small rectangular red button labeled RESET.
Turn ignition ON
Press the RESET button repeatedly until you see the SERVICE ENGIN light flashing on the dash.
Press and hold the RESET button for a few seconds until you hear 5 'dings'. It will turn off.
Turn ignition OFF.
Drive safely.
Good luck.
Please rate the solution....

Jul 03, 2009 | 2003 Oldsmobile Alero

1 Answer


Are you talking abut the Service Engine Soon light? (Service Engine). If so, take it to an auto parts store and ask if they can run a diagnostics test on it. This will bring up a list of codes which indicate any parts that may be faulty and/or need replaced. Also, check all your fuses, relays, and battery terminal connections <--make sure they're clean too. If not codes come up, and the service engine light is on, ask them to simply clear the codes (which means they reset your cars computer). As I have recently learned (been told) when a battery has been disconnected a certain number of times, this alone can cause the Service Engine Soon light to come on. If any codes come up, find out what they are for, and starting with the least expensive parts (as one part can cause others to show up on the codes list sometimes), replace each as needed until the part if fixed. NOTE: Scheduled, routine tune-ups can help avoid such incidents. I sincerely hope this information is helpful to you.

Mar 17, 2009 | 2003 Saturn L-Series

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