P 1660 toyota air bleed control circute :-) please help what problem avalon 2013 plase help me what problem :-) I reset it but he coming after two or athree days please helppppppppppppppppppppppppppqppppppppppppppptpppppppppppppppppppppppppppppppppppppppppppppppyppppppppppp