SES light faintly illuminated??
#1
SES light faintly illuminated??
There was a thread about this a couple of months ago. The SES light on my 2k2 sometimes is very faintly visible, but only when the headlights are on. When the lights are turned off, the SES light is still lit. During the day, if I drive into the garage, the light is not on. The car has definitely not dropped any codes, because the light would be much brighter. Anyone have any insight?
#2
Re: SES light faintly illuminated??
Originally posted by Jaws
There was a thread about this a couple of months ago. The SES light on my 2k2 sometimes is very faintly visible, but only when the headlights are on. When the lights are turned off, the SES light is still lit. During the day, if I drive into the garage, the light is not on. The car has definitely not dropped any codes, because the light would be much brighter. Anyone have any insight?
There was a thread about this a couple of months ago. The SES light on my 2k2 sometimes is very faintly visible, but only when the headlights are on. When the lights are turned off, the SES light is still lit. During the day, if I drive into the garage, the light is not on. The car has definitely not dropped any codes, because the light would be much brighter. Anyone have any insight?
#3
Re: Re: SES light faintly illuminated??
Originally posted by maximadave
same here. no problems. nothing to worry about.
same here. no problems. nothing to worry about.
#4
I noticed the same thing after I reset my 1st. SES right after I put in a Stillen intake. We couldn't figure out what the code was (see my post Does anyone know what this DTC is for: P1456 ) so we just reset it. Now it is back on and I'm going to the dealer.
My take on it is it has something to do with 1 of to tests in the drive cycle. The ECU is always running emissions test in what is called a "drive cycle" it must finish certian tests before it can move on to others and it can some times take several months if not more to finish.
Have you reset your ECU recently?
My take on it is it has something to do with 1 of to tests in the drive cycle. The ECU is always running emissions test in what is called a "drive cycle" it must finish certian tests before it can move on to others and it can some times take several months if not more to finish.
Have you reset your ECU recently?
#5
Originally posted by maximaman777
I noticed the same thing after I reset my 1st. SES right after I put in a Stillen intake. We couldn't figure out what the code was (see my post Does anyone know what this DTC is for: P1456 ) so we just reset it. Now it is back on and I'm going to the dealer.
My take on it is it has something to do with 1 of to tests in the drive cycle. The ECU is always running emissions test in what is called a "drive cycle" it must finish certian tests before it can move on to others and it can some times take several months if not more to finish.
Have you reset your ECU recently?
I noticed the same thing after I reset my 1st. SES right after I put in a Stillen intake. We couldn't figure out what the code was (see my post Does anyone know what this DTC is for: P1456 ) so we just reset it. Now it is back on and I'm going to the dealer.
My take on it is it has something to do with 1 of to tests in the drive cycle. The ECU is always running emissions test in what is called a "drive cycle" it must finish certian tests before it can move on to others and it can some times take several months if not more to finish.
Have you reset your ECU recently?
#6
Re: Re: Re: SES light faintly illuminated??
Originally posted by Jaws
Right, I know its nothing to worry about, but it is annoying and shouldn't on. So why is it on?
Right, I know its nothing to worry about, but it is annoying and shouldn't on. So why is it on?
#7
Re: SES light faintly illuminated??
No my light was faintly visible all the time until it went away for about 2mo. then the SES came back on brite last week. I misunderstood what you were saying based on this sentence.
How long have you had the car?
Originally posted by Jaws
When the lights are turned off, the SES light is still lit.
When the lights are turned off, the SES light is still lit.
#8
Re: Re: SES light faintly illuminated??
Originally posted by maximaman777
No my light was faintly visible all the time until it went away for about 2mo. then the SES came back on brite last week. I misunderstood what you were saying based on this sentence.
How long have you had the car?
No my light was faintly visible all the time until it went away for about 2mo. then the SES came back on brite last week. I misunderstood what you were saying based on this sentence.
How long have you had the car?
#9
Re: Re: Re: Re: SES light faintly illuminated??
Originally posted by brian2k2
I have the same prob. The light is always on, you just cant see it in the daylight. I havn't looked at a wiring diagram but on the older cars the only thing that can turn the light on is the computer, it supplies the ground. I havn't taken mine in yet but I bet a bunch of us will be getting new PCM's.
I have the same prob. The light is always on, you just cant see it in the daylight. I havn't looked at a wiring diagram but on the older cars the only thing that can turn the light on is the computer, it supplies the ground. I havn't taken mine in yet but I bet a bunch of us will be getting new PCM's.
#10
In that case I still think it has something to do with 1 of the drive cycle tests. Give it a week and see if it still faintly on. Also check this out ENGINE DIAGNOSTICS: ZEROING IN ON OBD II about 1/2 way down is a heading titled READINESS FLAGS.
I know for a fact 1 of the tests for earlier Max's needs the car to be driven at 25mph for 2min. I know that doesn't happen to often in my car .
I know for a fact 1 of the tests for earlier Max's needs the car to be driven at 25mph for 2min. I know that doesn't happen to often in my car .
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