var controlHondaStatus = getManagedMetadataField("Status");
    controlHondaStatus.children().attr("disabled", "disabled");

function getManagedMetadataField(internalName) {
var field = findFieldByInternalName(internalName);
field.Control = field.find("div.ms-taxonomy-fieldeditor");
field.Value = field.Control.find("span.valid-text").text();
return field;