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anti lock brake light


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When that light illuminated on my '92, it turned out to be a bad speed sensor in the hub and bearing assembly. I couldn't figure it out so I taped over the light. six months later the bearing started to growl. When I changed the hub and bearing assembly, the light went out. You might unplug it at each wheel and run a continuity test to locate the bad one.

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Simultaneously press and hold the OFF and WARMER buttons on the climate control panel and write doen any codes that are posted. When you see .7.0, the system is awaiting further input and you can exit diagnostics by pressing AUTO or turn the key off.

Post back any codes.

'93 Fleetwood Brougham
'05 Deville
'04 Deville
2013 Silverado Z71

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