Why is my "brake" and "abs inop" lights on??
#1
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Why is my "brake" and "abs inop" lights on??
I just switched to prostars all around, and now whem I'm driving, my "brake" and "abs inop" lights come on. Any thoughts?? Thanks guys.
-John
-John
#2
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If the ABS unit sees a constant difference in tire rotation speeds, it begins to wonder if you are driving on ice, or if there is a problem, so it turns on the light. The ABS is designed for 4 tires of equal diameter, you no longer have that and the system won't work properly.
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Exact same thing happened to me lastnight...last time my ABS INOP light turned on it was my rear speed sensors...but this time it happened when I put on all 4 of my prostars...and the BRAKE light is on as well...kinda scary for me not having my ABS working...n e one know of n e thing that can be done to fix that?
#7
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Originally Posted by LAST OF THE BREED
n e one know of n e thing that can be done to fix that?
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#9
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Originally Posted by warpwr
Oddly enough, Corvette's use unequal wheels and tires. Maybe there is some part swapping ability in there somewhere, somehow.
#10
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FYI, the OD of the tires and wheels on the C5 and C6 Vettes are different.
The ABS on the Vettes is designed for the different tire speeds, F-Cars the ASB expects the tires to be close to the same OD, so when the tires are majorly different +/- 1/2" the ASB thinks there is a problem.
The ABS on the Vettes is designed for the different tire speeds, F-Cars the ASB expects the tires to be close to the same OD, so when the tires are majorly different +/- 1/2" the ASB thinks there is a problem.
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The lights will come on if there is over .625-.750 difference in tire heights front to rear. - I think it actually depends on rollout but the heights are the easiest way to tell.