HT4100 Posted December 3, 2004 Report Share Posted December 3, 2004 the anti lock brake light is on on my 93 sedan de ville, the brakes work fine, anyone know what it could be Link to comment Share on other sites More sharing options...
Ranger Posted December 3, 2004 Report Share Posted December 3, 2004 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. Link to comment Share on other sites More sharing options...
KHE Posted December 3, 2004 Report Share Posted December 3, 2004 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. Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
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