Is a witness who is called as an accomplice by the prosecution entitled to cross-examination?

Generally, "an instruction on accomplice testimony must be given on the court's own motion when the accomplice is called solely by the prosecution. [Citations.]" (People v. Guiuan (1998) 18 Cal.4th 558, 566.) A witness is an accomplice if he or she "'is liable to prosecution for the identical offense charged against the defendant on trial in the cause in which the testimony of the accomplice is given.' [Citations.]" (People v. Felton (2004) 122 Cal.App.4th 260, 268, quoting People v. Arias (1996) 13 Cal.4th 92, 142-143.)