What is the test for judicial review of a final and conclusive decision of an arbitrator in a personal injury case?

"Arbitration awards are final and conclusive because the parties have agreed they should be so. . . . [O]nly limited judicial review is available. Courts may not review the merits of the controversy, the validity of the arbitrator's reasoning, or the sufficiency of the evidence. [Citation.] Indeed, an arbitrator's decision is not generally reviewable for errors of fact or law, even if the error appears on the face of the award and causes substantial injustice." (Jordan v. California Dept. of Motor Vehicles (2002) 100 Cal.App.4th 431, 443.) Judicial review of the

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