C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Help !! Warning lights...

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Old Apr 18, 2002 | 11:01 PM
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Default Help !! Warning lights...

On the way home the Service ASR and Service ABS lights came on. I got home, shut the car down, waited for a couple minutes and restarted it. The lights didnt come back on. What should I be looking for? I remember a post similar to this but I cannot remember what the advice was... Any help would be appreciated.

Thanks..
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Old Apr 18, 2002 | 11:14 PM
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Default Re: Help !! Warning lights... (T1Kilr)

Those lights came on because one or more sensors reported a failure of some kind and the computer stores these error codes. You can recover the stored error codes and they point to were to start looking.
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Old Apr 18, 2002 | 11:17 PM
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Default Re: Help !! Warning lights... (jfb)

How many start cycles are the codes kept?
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Old Apr 19, 2002 | 12:53 AM
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Default Re: Help !! Warning lights... (T1Kilr)

Check the fluid level in the master cylinder. I had that happen at an autocross last year, so I checked the master and it needed about 3 oz of fluid. Topped the master off and no more lites.

The expensive fix can be a faulty electronic brake control module. Pull the codes and post them (if any).

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Old Apr 19, 2002 | 07:09 AM
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Default Re: Help !! Warning lights... (T1Kilr)

ttt

anyone know how long the codes stay in memory?


[Modified by T1Kilr, 6:09 AM 4/19/2002]
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Old Apr 19, 2002 | 07:16 AM
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Default Re: Help !! Warning lights... (T1Kilr)

Mine did that once after going over a series of unavoidable bumps. They went away after shutting the car off and restarting. After that, I didn't pursue it- haven't had any problems since(KNOCK ON WOOD!)
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Old Apr 20, 2002 | 01:10 AM
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Default Re: Help !! Warning lights... (T1Kilr)

My bet is on the brake fluid level in the master cylinder, I looked at mine 2 times before I realized the line I was looking at was the mold line and not the fill line :crazy:
Afterwards no warnings anymore :)
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Old Apr 20, 2002 | 01:32 AM
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Default Re: Help !! Warning lights... (T1Kilr)

Going off memory, I believe it's 50 times. It's been a while since I had asked the dealer, so that number may be wrong. Give a chevy dealership service department a call and they'll tell you the number for sure.
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Old Apr 21, 2002 | 01:13 AM
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Default Re: Help !! Warning lights... (T1Kilr)

According to my 92 Service Manual, the codes stay in for 100 cycles.
I don't know if that applies to a 93, however.


[Modified by behnevette, 12:14 AM 4/21/2002]
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