2011 Jeep Grand Cherokee Code P0157 Prof. Wayne Orn 29 Jan 2024 2004 jeep grand cherokee o2 sensor O2 cherokee downstream upstream codes 2004 Jeep Grand Cherokee O2 Sensor 2004 Jeep Grand Cherokee O2 Sensor Check Details ← P0171 Chevy Malibu P0457 Jeep Grand Cherokee →