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Old 12-04-2018, 07:19 PM
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Milton Hilliard
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I own a 1995 C4 Corvette that I have rebuilt everything throughout the entire vehicle except for the paint. Today I went to start the vehicle and got three warning lights. The ARS, ARS OFF and ANTILOCK BRAKE lightsl were on. Has anyone else experienced this? I ran A complete diagnostic and got no codes. I am confused. What should I do now?
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Old 12-04-2018, 07:25 PM
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Check the brake fluid level first. Having low fluid will trigger those lights.
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Old 12-04-2018, 07:47 PM
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Yup. Adding the slightest amount will make the lights go away.
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Old 12-05-2018, 09:38 PM
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drive the car for a little. my old 94 would have those lights come on if I had it jacked up a certain way. then I would drive it and it would go off
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Old 12-06-2018, 03:22 AM
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For a few weeks, mine would come on under hard acceleration. It wouldn't go off until the car was turned off and turned back on. Stopped doing it on it's own.
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Old 12-06-2018, 12:31 PM
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Originally Posted by ChumpVette View Post
Check the brake fluid level first. Having low fluid will trigger those lights.
Sometimes even adding fluid to the FILL line isn't enough for the lights to turn off. Fill the reservoir as close to the top of the reservoir lid as you can. The fill line usually is about 1/4" to 3/8" from the top and if the fluid gets moved around from hard acceleration or cornering, the sensor will pick up the lack of fluid and turn the lights on.
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Old 12-07-2018, 08:26 AM
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Originally Posted by c4cruiser View Post
Sometimes even adding fluid to the FILL line isn't enough for the lights to turn off. Fill the reservoir as close to the top of the reservoir lid as you can. The fill line usually is about 1/4" to 3/8" from the top and if the fluid gets moved around from hard acceleration or cornering, the sensor will pick up the lack of fluid and turn the lights on.

I checked the brake fluid and found it to be really dark, almost a coffee color. Will replacing the fluid thoughout the system help?
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Old 12-09-2018, 12:48 PM
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have the same issue on my 96 . will have the ground points cleaned while the car is in the shop next week for it's 5 ! booster . such fun .....
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Old 12-09-2018, 12:59 PM
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Originally Posted by johno504 View Post
have the same issue on my 96 . will have the ground points cleaned while the car is in the shop next week for it's 5 ! booster . such fun .....
​​​​​

I changed out the booster and master cylinder this past Summer. Everything was working fine until we got our first freeze. A day later I started the car and the ADR light came on. As soon as I drive about 50 feet, the ABS service light comes on.
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Old 12-09-2018, 03:42 PM
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Make sure the battery is fully charged.
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Old 12-09-2018, 04:57 PM
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Milton Hilliard
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Originally Posted by 383vett View Post
Make sure the battery is fully charged.

New battery reading 14.5 volts. I am thinking that with the old brake fluid in the system, the fluid may have sludge that reacted to the cold weather. Will replace the brake once the weather lighten up. Will let you know when I'm done.
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Old 12-22-2018, 03:44 PM
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Once I realized the ABS pump was not priming when I turned the key on, I knew the problem was the pump. Changed out the pump and all is well with my Vette.

Thanks for all the help.
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Old 01-07-2019, 10:09 PM
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What all is involved in changing pump
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Old 01-11-2019, 10:53 AM
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Originally Posted by Tx_94vette View Post
What all is involved in changing pump
Since the pump is located in the compartment behind the driver's seat, you will need a 14 mm Crowfoot flare wrench. Using a 1/4 in drive ratchet and a six inch extension you can remove all the lines working from the backside of the pump. Once the lines are removed, loosen the three mounting nuts with a short 10 mm wrench. Detach the wiring harness and the black wire before you start.


Once the new pump is installed, turn on the key and bleed one line at a time. Make sure you place a towel in the compartment before you begin.
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