FLASHING perform shift button? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 09-30-2005, 02:30 AM   #1
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Default FLASHING perform shift button?

last night when i was driving i noticed a flashing light...i look down, and i see my performance shift button flashing at an interval of like 3 times per second...

so im thinking damn, there goes that LED....

i push the normal button, and its fine...

i go back to the perform button, and its still doing it... PERFECT intervals... not like the bulb was going at all...

i tired switching back and worth a bunch of times, pounding on it and such...

did it the whole way home, 5 min...

forgot about it till tonight, the light works fine...

i do not have my custom chip in it....

can anyone explain this?
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Old 09-30-2005, 09:00 AM   #2
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Time to pull out the manual. Sounds like you either have a short somewhere or the tranny is starting to complain visually.
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Old 09-30-2005, 09:08 AM   #3
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Originally Posted by BillBoost37
Time to pull out the manual. Sounds like you either have a short somewhere or the tranny is starting to complain visually.
I have never heard anything of this......I'm rather intrigued though as to the answer.

I whout assume a loose wire or something....but that'* all circut board in there right?
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Old 09-30-2005, 09:11 AM   #4
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Originally Posted by LakevilleSSEi
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Time to pull out the manual. Sounds like you either have a short somewhere or the tranny is starting to complain visually.
I have never heard anything of this......I'm rather intrigued though as to the answer.

I whout assume a loose wire or something....but that'* all circut board in there right?
The circuit is simple enough to turn on an led when one button or the other is selected and the button selected merely tells the PCM which mode is requested.
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Old 09-30-2005, 09:20 AM   #5
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Originally Posted by BillBoost37
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Originally Posted by LakevilleSSEi
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Originally Posted by BillBoost37
Time to pull out the manual. Sounds like you either have a short somewhere or the tranny is starting to complain visually.
I have never heard anything of this......I'm rather intrigued though as to the answer.

I whout assume a loose wire or something....but that'* all circut board in there right?
The circuit is simple enough to turn on an led when one button or the other is selected and the button selected merely tells the PCM which mode is requested.

Actually I have pics of that whole setup on here somewhere.....not sure where I posted them. But I believe they're still in my photobucket. Gimme a hollar if ya want them.
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Old 10-03-2005, 09:58 PM   #6
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still doing it...almost every night..
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Old 10-03-2005, 10:06 PM   #7
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its warning you that your in Perf mode

just a thought...........is it only at night with the lights on, or does it do it in the daytime
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Old 10-03-2005, 10:09 PM   #8
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Originally Posted by 1993 SLE
its warning you that your in Perf mode

just a thought...........is it only at night with the lights on, or does it do it in the daytime
only notice it during the night....cuz i have the super bright LED'* in there and it lights up my ceiling...

it might do it during the day, but i have not noticed it
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Old 10-03-2005, 10:28 PM   #9
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does it drive any different? any codes?
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Old 10-03-2005, 10:29 PM   #10
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does it drive any different? any codes?
no...

and my car is to hard to get codes from whenever i want
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