1999 GMC C1500 User Comment / Complaint

The abs brake light was illuminated at all times. the consumer heard a humming sound coming from under the vehicle. the abs module was disconnected because the module continued to run although vehicle was turned off. if the module was left connected it could drain the battery and possibly damage other systems. the dealer and manufacturer were informed of the problem. the abs module has not been repaired due to the cost of the repair.